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 (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
6°C maximum daytime temperature in January in Londonderry6
6°C maximum daytime temperature in February in Londonderry6
8°C maximum daytime temperature in March in Londonderry8
11°C maximum daytime temperature in April in Londonderry11
14°C maximum daytime temperature in May in Londonderry14
16°C maximum daytime temperature in June in Londonderry16
17°C maximum daytime temperature in July in Londonderry17
17°C maximum daytime temperature in August in Londonderry17
15°C maximum daytime temperature in September in Londonderry15
12°C maximum daytime temperature in October in Londonderry12
9°C maximum daytime temperature in November in Londonderry9
7°C maximum daytime temperature in December in Londonderry7
Min temperature (night-time)
1°C minimum night-time temperature in January in Londonderry1
1°C minimum night-time temperature in February in Londonderry1
2°C minimum night-time temperature in March in Londonderry2
3°C minimum night-time temperature in April in Londonderry3
5°C minimum night-time temperature in May in Londonderry5
8°C minimum night-time temperature in June in Londonderry8
10°C minimum night-time temperature in July in Londonderry10
10°C minimum night-time temperature in August in Londonderry10
8°C minimum night-time temperature in September in Londonderry8
6°C minimum night-time temperature in October in Londonderry6
3°C minimum night-time temperature in November in Londonderry3
2°C minimum night-time temperature in December in Londonderry2
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 (mm)
130 mm monthly rainfall in January in Londonderry130
94 mm monthly rainfall in February in Londonderry94
99 mm monthly rainfall in March in Londonderry99
73 mm monthly rainfall in April in Londonderry73
81 mm monthly rainfall in May in Londonderry81
78 mm monthly rainfall in June in Londonderry78
81 mm monthly rainfall in July in Londonderry81
99 mm monthly rainfall in August in Londonderry99
109 mm monthly rainfall in September in Londonderry109
127 mm monthly rainfall in October in Londonderry127
120 mm monthly rainfall in November in Londonderry120
124 mm monthly rainfall in December in Londonderry124

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 6°C 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 130 mm of rainfall in the month.

  • 6°C maximum daytime temperature in January in Londonderry6
    6°C max day temperature
  • 1 hour of sunshine per day
  • 23 days with some rainfall in January in Londonderry23
    23 days with some rainfall
  • 1°C minimum night-time temperature in January in Londonderry1
    1°C 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
  • 130 mm monthly rainfall in January in Londonderry130
    130 mm 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 6°C 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 94 mm of rainfall in the month.

  • 6°C maximum daytime temperature in February in Londonderry6
    6°C max day temperature
  • 2 hours of sunshine per day
  • 18 days with some rainfall in February in Londonderry18
    18 days with some rainfall
  • 1°C minimum night-time temperature in February in Londonderry1
    1°C 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
  • 94 mm monthly rainfall in February in Londonderry94
    94 mm 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 8°C 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 99 mm of rainfall in the month.

  • 8°C maximum daytime temperature in March in Londonderry8
    8°C max day temperature
  • 3 hours of sunshine per day
  • 21 days with some rainfall in March in Londonderry21
    21 days with some rainfall
  • 2°C minimum night-time temperature in March in Londonderry2
    2°C 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
  • 99 mm monthly rainfall in March in Londonderry99
    99 mm 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 11°C 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 73 mm of rainfall in the month.

  • 11°C maximum daytime temperature in April in Londonderry11
    11°C max day temperature
  • 5 hours of sunshine per day
  • 17 days with some rainfall in April in Londonderry17
    17 days with some rainfall
  • 3°C minimum night-time temperature in April in Londonderry3
    3°C 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
  • 73 mm monthly rainfall in April in Londonderry73
    73 mm 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 14°C 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 81 mm of rainfall in the month.

  • 14°C maximum daytime temperature in May in Londonderry14
    14°C max day temperature
  • 6 hours of sunshine per day
  • 18 days with some rainfall in May in Londonderry18
    18 days with some rainfall
  • 5°C minimum night-time temperature in May in Londonderry5
    5°C 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
  • 81 mm monthly rainfall in May in Londonderry81
    81 mm 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 16°C 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 78 mm of rainfall in the month.

  • 16°C maximum daytime temperature in June in Londonderry16
    16°C max day temperature
  • 5 hours of sunshine per day
  • 18 days with some rainfall in June in Londonderry18
    18 days with some rainfall
  • 8°C minimum night-time temperature in June in Londonderry8
    8°C 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
  • 78 mm monthly rainfall in June in Londonderry78
    78 mm 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 17°C 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 81 mm of rainfall in the month.

  • 17°C maximum daytime temperature in July in Londonderry17
    17°C max day temperature
  • 4 hours of sunshine per day
  • 19 days with some rainfall in July in Londonderry19
    19 days with some rainfall
  • 10°C minimum night-time temperature in July in Londonderry10
    10°C 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
  • 81 mm monthly rainfall in July in Londonderry81
    81 mm 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 17°C 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 99 mm of rainfall in the month.

  • 17°C maximum daytime temperature in August in Londonderry17
    17°C max day temperature
  • 4 hours of sunshine per day
  • 20 days with some rainfall in August in Londonderry20
    20 days with some rainfall
  • 10°C minimum night-time temperature in August in Londonderry10
    10°C 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
  • 99 mm monthly rainfall in August in Londonderry99
    99 mm 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 15°C 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 109 mm of rainfall in the month.

  • 15°C maximum daytime temperature in September in Londonderry15
    15°C max day temperature
  • 3 hours of sunshine per day
  • 21 days with some rainfall in September in Londonderry21
    21 days with some rainfall
  • 8°C minimum night-time temperature in September in Londonderry8
    8°C 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
  • 109 mm monthly rainfall in September in Londonderry109
    109 mm 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 12°C 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 127 mm of rainfall in the month.

  • 12°C maximum daytime temperature in October in Londonderry12
    12°C max day temperature
  • 3 hours of sunshine per day
  • 22 days with some rainfall in October in Londonderry22
    22 days with some rainfall
  • 6°C minimum night-time temperature in October in Londonderry6
    6°C 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
  • 127 mm monthly rainfall in October in Londonderry127
    127 mm 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 9°C 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 120 mm of rainfall in the month.

  • 9°C maximum daytime temperature in November in Londonderry9
    9°C max day temperature
  • 2 hours of sunshine per day
  • 22 days with some rainfall in November in Londonderry22
    22 days with some rainfall
  • 3°C minimum night-time temperature in November in Londonderry3
    3°C 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
  • 120 mm monthly rainfall in November in Londonderry120
    120 mm 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 7°C 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 124 mm of rainfall in the month.

  • 7°C maximum daytime temperature in December in Londonderry7
    7°C max day temperature
  • 1 hour of sunshine per day
  • 23 days with some rainfall in December in Londonderry23
    23 days with some rainfall
  • 2°C minimum night-time temperature in December in Londonderry2
    2°C 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
  • 124 mm monthly rainfall in December in Londonderry124
    124 mm 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

  • Explore latest offers on Northern Ireland cruises
  • Filter offers by price, ship & departure point
  • Travel before 31st December 2027 (inclusive)

Fred OlsenCruise deal finder

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 / mm)  |  Imperial (°F / inches)

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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 (°C)

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

Metric (°C / mm)  |  Imperial (°F / inches)

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