Londonderry weather by month

Check out Londonderry weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.

Temperature in Londonderry (°F)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
43°F maximum daytime temperature in January in Londonderry43
43°F maximum daytime temperature in February in Londonderry43
46°F maximum daytime temperature in March in Londonderry46
52°F maximum daytime temperature in April in Londonderry52
57°F maximum daytime temperature in May in Londonderry57
61°F maximum daytime temperature in June in Londonderry61
63°F maximum daytime temperature in July in Londonderry63
63°F maximum daytime temperature in August in Londonderry63
59°F maximum daytime temperature in September in Londonderry59
54°F maximum daytime temperature in October in Londonderry54
48°F maximum daytime temperature in November in Londonderry48
45°F maximum daytime temperature in December in Londonderry45
Min temperature (night-time)
34°F minimum night-time temperature in January in Londonderry34
34°F minimum night-time temperature in February in Londonderry34
36°F minimum night-time temperature in March in Londonderry36
37°F minimum night-time temperature in April in Londonderry37
41°F minimum night-time temperature in May in Londonderry41
46°F minimum night-time temperature in June in Londonderry46
50°F minimum night-time temperature in July in Londonderry50
50°F minimum night-time temperature in August in Londonderry50
46°F minimum night-time temperature in September in Londonderry46
43°F minimum night-time temperature in October in Londonderry43
37°F minimum night-time temperature in November in Londonderry37
36°F minimum night-time temperature in December in Londonderry36
Heat & Humidity
No heat & humidity in January in Londonderry0
No heat & humidity in February in Londonderry0
No heat & humidity in March in Londonderry0
No heat & humidity in April in Londonderry0
No heat & humidity in May in Londonderry0
No heat & humidity in June in Londonderry0
No heat & humidity in July in Londonderry0
No heat & humidity in August in Londonderry0
No heat & humidity in September in Londonderry0
No heat & humidity in October in Londonderry0
No heat & humidity in November in Londonderry0
No heat & humidity in December in Londonderry0

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

Sunshine & Daylight in Londonderry

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of sunshine
Daily hours of daylight
8 hours of daylight per day in January in Londonderry8
10 hours of daylight per day in February in Londonderry10
12 hours of daylight per day in March in Londonderry12
14 hours of daylight per day in April in Londonderry14
16 hours of daylight per day in May in Londonderry16
17 hours of daylight per day in June in Londonderry17
17 hours of daylight per day in July in Londonderry17
15 hours of daylight per day in August in Londonderry15
13 hours of daylight per day in September in Londonderry13
10 hours of daylight per day in October in Londonderry10
8 hours of daylight per day in November in Londonderry8
7 hours of daylight per day in December in Londonderry7
UV Index (Maximum)
No UV (maximum) index in January in Londonderry0
UV (maximum) index 1 (Low) in February in Londonderry1
UV (maximum) index 2 (Low) in March in Londonderry2
UV (maximum) index 3 (Moderate) in April in Londonderry3
UV (maximum) index 5 (Moderate) in May in Londonderry5
UV (maximum) index 6 (High) in June in Londonderry6
UV (maximum) index 6 (High) in July in Londonderry6
UV (maximum) index 5 (Moderate) in August in Londonderry5
UV (maximum) index 3 (Moderate) in September in Londonderry3
UV (maximum) index 2 (Low) in October in Londonderry2
UV (maximum) index 1 (Low) in November in Londonderry1
No UV (maximum) index in December in Londonderry0

Rainfall in Londonderry

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
23 days with some rainfall in January in Londonderry23
18 days with some rainfall in February in Londonderry18
21 days with some rainfall in March in Londonderry21
17 days with some rainfall in April in Londonderry17
18 days with some rainfall in May in Londonderry18
18 days with some rainfall in June in Londonderry18
19 days with some rainfall in July in Londonderry19
20 days with some rainfall in August in Londonderry20
21 days with some rainfall in September in Londonderry21
22 days with some rainfall in October in Londonderry22
22 days with some rainfall in November in Londonderry22
23 days with some rainfall in December in Londonderry23
Average monthly rainfall (inches)
5.1 inches monthly rainfall in January in Londonderry5.1
3.7 inches monthly rainfall in February in Londonderry3.7
3.9 inches monthly rainfall in March in Londonderry3.9
2.9 inches monthly rainfall in April in Londonderry2.9
3.2 inches monthly rainfall in May in Londonderry3.2
3.1 inches monthly rainfall in June in Londonderry3.1
3.2 inches monthly rainfall in July in Londonderry3.2
3.9 inches monthly rainfall in August in Londonderry3.9
4.3 inches monthly rainfall in September in Londonderry4.3
5.0 inches monthly rainfall in October in Londonderry5.0
4.7 inches monthly rainfall in November in Londonderry4.7
4.9 inches monthly rainfall in December in Londonderry4.9

More about Londonderry

Londonderry by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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The climate guide for Northern Ireland (Londonderry) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

What's the climate like in Londonderry?

Londonderry has a temperate climate with warm summers and some rainfall in all months.

Londonderry weather in January

Expect daytime maximum temperatures of 43°F in Londonderry, Northern Ireland in January based on long-term weather averages. There is 1 hour of sunshine per day on average with 23 days with some rainfall and typically 5.1 inches of rainfall in the month.

  • 43°F maximum daytime temperature in January in Londonderry43
    43°F max day temperature
  • 1 hour of sunshine per day
  • 23 days with some rainfall in January in Londonderry23
    23 days with some rainfall
  • 34°F minimum night-time temperature in January in Londonderry34
    34°F min night temperature
  • 8 hours of daylight per day in January in Londonderry8
    8 hours of daylight per day
  • No heat & humidity in January in Londonderry0
    No heat & humidity
  • 5.1 inches monthly rainfall in January in Londonderry5.1
    5.1 inches of monthly rainfall
  • No UV (maximum) index in January in Londonderry0
    No UV (Maximum) Index UV index

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Londonderry weather in February

Expect daytime maximum temperatures of 43°F in Londonderry, Northern Ireland in February based on long-term weather averages. There are 2 hours of sunshine per day on average with 18 days with some rainfall and typically 3.7 inches of rainfall in the month.

  • 43°F maximum daytime temperature in February in Londonderry43
    43°F max day temperature
  • 2 hours of sunshine per day
  • 18 days with some rainfall in February in Londonderry18
    18 days with some rainfall
  • 34°F minimum night-time temperature in February in Londonderry34
    34°F min night temperature
  • 10 hours of daylight per day in February in Londonderry10
    10 hours of daylight per day
  • No heat & humidity in February in Londonderry0
    No heat & humidity
  • 3.7 inches monthly rainfall in February in Londonderry3.7
    3.7 inches of monthly rainfall
  • UV (maximum) index 1 (Low) in February in Londonderry1
    1 (Low) UV index

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Londonderry weather in March

Expect daytime maximum temperatures of 46°F in Londonderry, Northern Ireland in March based on long-term weather averages. There are 3 hours of sunshine per day on average with 21 days with some rainfall and typically 3.9 inches of rainfall in the month.

  • 46°F maximum daytime temperature in March in Londonderry46
    46°F max day temperature
  • 3 hours of sunshine per day
  • 21 days with some rainfall in March in Londonderry21
    21 days with some rainfall
  • 36°F minimum night-time temperature in March in Londonderry36
    36°F min night temperature
  • 12 hours of daylight per day in March in Londonderry12
    12 hours of daylight per day
  • No heat & humidity in March in Londonderry0
    No heat & humidity
  • 3.9 inches monthly rainfall in March in Londonderry3.9
    3.9 inches of monthly rainfall
  • UV (maximum) index 2 (Low) in March in Londonderry2
    2 (Low) UV index

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Londonderry weather in April

Expect daytime maximum temperatures of 52°F in Londonderry, Northern Ireland in April based on long-term weather averages. There are 5 hours of sunshine per day on average with 17 days with some rainfall and typically 2.9 inches of rainfall in the month.

  • 52°F maximum daytime temperature in April in Londonderry52
    52°F max day temperature
  • 5 hours of sunshine per day
  • 17 days with some rainfall in April in Londonderry17
    17 days with some rainfall
  • 37°F minimum night-time temperature in April in Londonderry37
    37°F min night temperature
  • 14 hours of daylight per day in April in Londonderry14
    14 hours of daylight per day
  • No heat & humidity in April in Londonderry0
    No heat & humidity
  • 2.9 inches monthly rainfall in April in Londonderry2.9
    2.9 inches of monthly rainfall
  • UV (maximum) index 3 (Moderate) in April in Londonderry3
    3 (Moderate) UV index

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Londonderry weather in May

Expect daytime maximum temperatures of 57°F in Londonderry, Northern Ireland in May based on long-term weather averages. There are 6 hours of sunshine per day on average with 18 days with some rainfall and typically 3.2 inches of rainfall in the month.

  • 57°F maximum daytime temperature in May in Londonderry57
    57°F max day temperature
  • 6 hours of sunshine per day
  • 18 days with some rainfall in May in Londonderry18
    18 days with some rainfall
  • 41°F minimum night-time temperature in May in Londonderry41
    41°F min night temperature
  • 16 hours of daylight per day in May in Londonderry16
    16 hours of daylight per day
  • No heat & humidity in May in Londonderry0
    No heat & humidity
  • 3.2 inches monthly rainfall in May in Londonderry3.2
    3.2 inches of monthly rainfall
  • UV (maximum) index 5 (Moderate) in May in Londonderry5
    5 (Moderate) UV index

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Londonderry weather in June

Expect daytime maximum temperatures of 61°F in Londonderry, Northern Ireland in June based on long-term weather averages. There are 5 hours of sunshine per day on average with 18 days with some rainfall and typically 3.1 inches of rainfall in the month.

  • 61°F maximum daytime temperature in June in Londonderry61
    61°F max day temperature
  • 5 hours of sunshine per day
  • 18 days with some rainfall in June in Londonderry18
    18 days with some rainfall
  • 46°F minimum night-time temperature in June in Londonderry46
    46°F min night temperature
  • 17 hours of daylight per day in June in Londonderry17
    17 hours of daylight per day
  • No heat & humidity in June in Londonderry0
    No heat & humidity
  • 3.1 inches monthly rainfall in June in Londonderry3.1
    3.1 inches of monthly rainfall
  • UV (maximum) index 6 (High) in June in Londonderry6
    6 (High) UV index

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Londonderry weather in July

Expect daytime maximum temperatures of 63°F in Londonderry, Northern Ireland in July based on long-term weather averages. There are 4 hours of sunshine per day on average with 19 days with some rainfall and typically 3.2 inches of rainfall in the month.

  • 63°F maximum daytime temperature in July in Londonderry63
    63°F max day temperature
  • 4 hours of sunshine per day
  • 19 days with some rainfall in July in Londonderry19
    19 days with some rainfall
  • 50°F minimum night-time temperature in July in Londonderry50
    50°F min night temperature
  • 17 hours of daylight per day in July in Londonderry17
    17 hours of daylight per day
  • No heat & humidity in July in Londonderry0
    No heat & humidity
  • 3.2 inches monthly rainfall in July in Londonderry3.2
    3.2 inches of monthly rainfall
  • UV (maximum) index 6 (High) in July in Londonderry6
    6 (High) UV index

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Londonderry weather in August

Expect daytime maximum temperatures of 63°F in Londonderry, Northern Ireland in August based on long-term weather averages. There are 4 hours of sunshine per day on average with 20 days with some rainfall and typically 3.9 inches of rainfall in the month.

  • 63°F maximum daytime temperature in August in Londonderry63
    63°F max day temperature
  • 4 hours of sunshine per day
  • 20 days with some rainfall in August in Londonderry20
    20 days with some rainfall
  • 50°F minimum night-time temperature in August in Londonderry50
    50°F min night temperature
  • 15 hours of daylight per day in August in Londonderry15
    15 hours of daylight per day
  • No heat & humidity in August in Londonderry0
    No heat & humidity
  • 3.9 inches monthly rainfall in August in Londonderry3.9
    3.9 inches of monthly rainfall
  • UV (maximum) index 5 (Moderate) in August in Londonderry5
    5 (Moderate) UV index

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Londonderry weather in September

Expect daytime maximum temperatures of 59°F in Londonderry, Northern Ireland in September based on long-term weather averages. There are 3 hours of sunshine per day on average with 21 days with some rainfall and typically 4.3 inches of rainfall in the month.

  • 59°F maximum daytime temperature in September in Londonderry59
    59°F max day temperature
  • 3 hours of sunshine per day
  • 21 days with some rainfall in September in Londonderry21
    21 days with some rainfall
  • 46°F minimum night-time temperature in September in Londonderry46
    46°F min night temperature
  • 13 hours of daylight per day in September in Londonderry13
    13 hours of daylight per day
  • No heat & humidity in September in Londonderry0
    No heat & humidity
  • 4.3 inches monthly rainfall in September in Londonderry4.3
    4.3 inches of monthly rainfall
  • UV (maximum) index 3 (Moderate) in September in Londonderry3
    3 (Moderate) UV index

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Londonderry weather in October

Expect daytime maximum temperatures of 54°F in Londonderry, Northern Ireland in October based on long-term weather averages. There are 3 hours of sunshine per day on average with 22 days with some rainfall and typically 5.0 inches of rainfall in the month.

  • 54°F maximum daytime temperature in October in Londonderry54
    54°F max day temperature
  • 3 hours of sunshine per day
  • 22 days with some rainfall in October in Londonderry22
    22 days with some rainfall
  • 43°F minimum night-time temperature in October in Londonderry43
    43°F min night temperature
  • 10 hours of daylight per day in October in Londonderry10
    10 hours of daylight per day
  • No heat & humidity in October in Londonderry0
    No heat & humidity
  • 5.0 inches monthly rainfall in October in Londonderry5.0
    5.0 inches of monthly rainfall
  • UV (maximum) index 2 (Low) in October in Londonderry2
    2 (Low) UV index

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Londonderry weather in November

Expect daytime maximum temperatures of 48°F in Londonderry, Northern Ireland in November based on long-term weather averages. There are 2 hours of sunshine per day on average with 22 days with some rainfall and typically 4.7 inches of rainfall in the month.

  • 48°F maximum daytime temperature in November in Londonderry48
    48°F max day temperature
  • 2 hours of sunshine per day
  • 22 days with some rainfall in November in Londonderry22
    22 days with some rainfall
  • 37°F minimum night-time temperature in November in Londonderry37
    37°F min night temperature
  • 8 hours of daylight per day in November in Londonderry8
    8 hours of daylight per day
  • No heat & humidity in November in Londonderry0
    No heat & humidity
  • 4.7 inches monthly rainfall in November in Londonderry4.7
    4.7 inches of monthly rainfall
  • UV (maximum) index 1 (Low) in November in Londonderry1
    1 (Low) UV index

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Londonderry weather in December

Expect daytime maximum temperatures of 45°F in Londonderry, Northern Ireland in December based on long-term weather averages. There is 1 hour of sunshine per day on average with 23 days with some rainfall and typically 4.9 inches of rainfall in the month.

  • 45°F maximum daytime temperature in December in Londonderry45
    45°F max day temperature
  • 1 hour of sunshine per day
  • 23 days with some rainfall in December in Londonderry23
    23 days with some rainfall
  • 36°F minimum night-time temperature in December in Londonderry36
    36°F min night temperature
  • 7 hours of daylight per day in December in Londonderry7
    7 hours of daylight per day
  • No heat & humidity in December in Londonderry0
    No heat & humidity
  • 4.9 inches monthly rainfall in December in Londonderry4.9
    4.9 inches of monthly rainfall
  • No UV (maximum) index in December in Londonderry0
    No UV (Maximum) Index UV index

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More about Londonderry

Londonderry by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Northern Ireland

  • Save up to £200 per person on cruises in 2025/2026
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  • Travel before 31st December 2026 (inclusive)

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The climate guide for Northern Ireland (Londonderry) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

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More about the UK

Compare Londonderry with the UK

Below the Londonderry chart shows average maximum daytime temperature for Londonderry, Northern Ireland, UK and the UK (London).

Maximum daytime temperature (°F)

Londonderry, Northern Ireland, UK
UK (London)
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Metric (°C)  |  Imperial (°F)

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