Olhao weather by month

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

Temperature in Olhao (°F)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
59°F maximum daytime temperature in January in Olhao59
61°F maximum daytime temperature in February in Olhao61
64°F maximum daytime temperature in March in Olhao64
66°F maximum daytime temperature in April in Olhao66
72°F maximum daytime temperature in May in Olhao72
77°F maximum daytime temperature in June in Olhao77
82°F maximum daytime temperature in July in Olhao82
84°F maximum daytime temperature in August in Olhao84
81°F maximum daytime temperature in September in Olhao81
73°F maximum daytime temperature in October in Olhao73
66°F maximum daytime temperature in November in Olhao66
61°F maximum daytime temperature in December in Olhao61
Min temperature (night-time)
45°F minimum night-time temperature in January in Olhao45
46°F minimum night-time temperature in February in Olhao46
48°F minimum night-time temperature in March in Olhao48
50°F minimum night-time temperature in April in Olhao50
54°F minimum night-time temperature in May in Olhao54
59°F minimum night-time temperature in June in Olhao59
64°F minimum night-time temperature in July in Olhao64
63°F minimum night-time temperature in August in Olhao63
63°F minimum night-time temperature in September in Olhao63
57°F minimum night-time temperature in October in Olhao57
50°F minimum night-time temperature in November in Olhao50
46°F minimum night-time temperature in December in Olhao46
Heat & Humidity
No heat & humidity in January in Olhao0
No heat & humidity in February in Olhao0
No heat & humidity in March in Olhao0
No heat & humidity in April in Olhao0
No heat & humidity in May in Olhao0
Low heat & humidity in June in OlhaoL
Moderate heat & humidity in July in OlhaoM
Moderate heat & humidity in August in OlhaoM
Low heat & humidity in September in OlhaoL
No heat & humidity in October in Olhao0
No heat & humidity in November in Olhao0
No heat & humidity in December in Olhao0
Sea temperature
61°F sea temperature in January in Olhao61
59°F sea temperature in February in Olhao59
61°F sea temperature in March in Olhao61
61°F sea temperature in April in Olhao61
63°F sea temperature in May in Olhao63
66°F sea temperature in June in Olhao66
70°F sea temperature in July in Olhao70
70°F sea temperature in August in Olhao70
70°F sea temperature in September in Olhao70
68°F sea temperature in October in Olhao68
66°F sea temperature in November in Olhao66
63°F sea temperature in December in Olhao63

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

Sunshine & UV index in Olhao

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of sunshine
Daily hours of daylight
10 hours of daylight per day in January in Olhao10
11 hours of daylight per day in February in Olhao11
12 hours of daylight per day in March in Olhao12
13 hours of daylight per day in April in Olhao13
14 hours of daylight per day in May in Olhao14
15 hours of daylight per day in June in Olhao15
14 hours of daylight per day in July in Olhao14
14 hours of daylight per day in August in Olhao14
12 hours of daylight per day in September in Olhao12
11 hours of daylight per day in October in Olhao11
10 hours of daylight per day in November in Olhao10
10 hours of daylight per day in December in Olhao10
UV Index (Maximum)
UV (maximum) index 2 (Low) in January in Olhao2
UV (maximum) index 3 (Moderate) in February in Olhao3
UV (maximum) index 5 (Moderate) in March in Olhao5
UV (maximum) index 7 (High) in April in Olhao7
UV (maximum) index 8 (Very High) in May in Olhao8
UV (maximum) index 9 (Very High) in June in Olhao9
UV (maximum) index 9 (Very High) in July in Olhao9
UV (maximum) index 9 (Very High) in August in Olhao9
UV (maximum) index 7 (High) in September in Olhao7
UV (maximum) index 5 (Moderate) in October in Olhao5
UV (maximum) index 3 (Moderate) in November in Olhao3
UV (maximum) index 2 (Low) in December in Olhao2

Rainfall in Olhao

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
9 days with some rainfall in January in Olhao9
11 days with some rainfall in February in Olhao11
8 days with some rainfall in March in Olhao8
9 days with some rainfall in April in Olhao9
5 days with some rainfall in May in Olhao5
3 days with some rainfall in June in Olhao3
1 day with some rainfall in July in Olhao1
1 day with some rainfall in August in Olhao1
2 days with some rainfall in September in Olhao2
8 days with some rainfall in October in Olhao8
10 days with some rainfall in November in Olhao10
12 days with some rainfall in December in Olhao12
Average monthly rainfall (inches)
3.8 inches monthly rainfall in January in Olhao3.8
2.7 inches monthly rainfall in February in Olhao2.7
2.1 inches monthly rainfall in March in Olhao2.1
1.6 inches monthly rainfall in April in Olhao1.6
1.2 inches monthly rainfall in May in Olhao1.2
0.7 inches monthly rainfall in June in Olhao0.7
0.1 inches monthly rainfall in July in Olhao0.1
0.1 inches monthly rainfall in August in Olhao0.1
0.6 inches monthly rainfall in September in Olhao0.6
2.1 inches monthly rainfall in October in Olhao2.1
3.3 inches monthly rainfall in November in Olhao3.3
3.9 inches monthly rainfall in December in Olhao3.9

More about the Olhao

Olhao by month

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

Recommended for the Algarve

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The climate guide for Algarve (Olhao) 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 Olhao?

Olhao has a temperate climate with hot dry summers.

Olhao weather in January

Expect daytime maximum temperatures of 59°F in Olhao, Algarve in January based on long-term weather averages. There are 5 hours of sunshine per day on average with typically 3.8 inches of rainfall in the month.

  • 59°F maximum daytime temperature in January in Olhao59
    59°F max day temperature
  • 5 hours of sunshine per day
  • 9 days with some rainfall in January in Olhao9
    9 days with some rainfall
  • 45°F minimum night-time temperature in January in Olhao45
    45°F min night temperature
  • 10 hours of daylight per day in January in Olhao10
    10 hours of daylight per day
  • No heat & humidity in January in Olhao0
    No heat & humidity
  • 3.8 inches monthly rainfall in January in Olhao3.8
    3.8 inches of monthly rainfall
  • UV (maximum) index 2 (Low) in January in Olhao2
    2 (Low) UV index
  • 61°F sea temperature in January in Olhao61
    61°F sea temperature

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Olhao weather in February

Expect daytime maximum temperatures of 61°F in Olhao, Algarve in February based on long-term weather averages. There are 6 hours of sunshine per day on average with 11 days with some rainfall and typically 2.7 inches of rainfall in the month.

  • 61°F maximum daytime temperature in February in Olhao61
    61°F max day temperature
  • 6 hours of sunshine per day
  • 11 days with some rainfall in February in Olhao11
    11 days with some rainfall
  • 46°F minimum night-time temperature in February in Olhao46
    46°F min night temperature
  • 11 hours of daylight per day in February in Olhao11
    11 hours of daylight per day
  • No heat & humidity in February in Olhao0
    No heat & humidity
  • 2.7 inches monthly rainfall in February in Olhao2.7
    2.7 inches of monthly rainfall
  • UV (maximum) index 3 (Moderate) in February in Olhao3
    3 (Moderate) UV index
  • 59°F sea temperature in February in Olhao59
    59°F sea temperature

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Olhao weather in March

Expect daytime maximum temperatures of 64°F in Olhao, Algarve in March based on long-term weather averages. There are 7 hours of sunshine per day on average with typically 2.1 inches of rainfall in the month.

  • 64°F maximum daytime temperature in March in Olhao64
    64°F max day temperature
  • 7 hours of sunshine per day
  • 8 days with some rainfall in March in Olhao8
    8 days with some rainfall
  • 48°F minimum night-time temperature in March in Olhao48
    48°F min night temperature
  • 12 hours of daylight per day in March in Olhao12
    12 hours of daylight per day
  • No heat & humidity in March in Olhao0
    No heat & humidity
  • 2.1 inches monthly rainfall in March in Olhao2.1
    2.1 inches of monthly rainfall
  • UV (maximum) index 5 (Moderate) in March in Olhao5
    5 (Moderate) UV index
  • 61°F sea temperature in March in Olhao61
    61°F sea temperature

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Olhao weather in April

Expect daytime maximum temperatures of 66°F in Olhao, Algarve in April based on long-term weather averages. There are 8 hours of sunshine per day on average with typically 1.6 inches of rainfall in the month.

  • 66°F maximum daytime temperature in April in Olhao66
    66°F max day temperature
  • 8 hours of sunshine per day
  • 9 days with some rainfall in April in Olhao9
    9 days with some rainfall
  • 50°F minimum night-time temperature in April in Olhao50
    50°F min night temperature
  • 13 hours of daylight per day in April in Olhao13
    13 hours of daylight per day
  • No heat & humidity in April in Olhao0
    No heat & humidity
  • 1.6 inches monthly rainfall in April in Olhao1.6
    1.6 inches of monthly rainfall
  • UV (maximum) index 7 (High) in April in Olhao7
    7 (High) UV index
  • 61°F sea temperature in April in Olhao61
    61°F sea temperature

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Olhao weather in May

Expect daytime maximum temperatures of 72°F in Olhao, Algarve in May based on long-term weather averages. There are 10 hours of sunshine per day on average.

  • 72°F maximum daytime temperature in May in Olhao72
    72°F max day temperature
  • 10 hours of sunshine per day
  • 5 days with some rainfall in May in Olhao5
    5 days with some rainfall
  • 54°F minimum night-time temperature in May in Olhao54
    54°F min night temperature
  • 14 hours of daylight per day in May in Olhao14
    14 hours of daylight per day
  • No heat & humidity in May in Olhao0
    No heat & humidity
  • 1.2 inches monthly rainfall in May in Olhao1.2
    1.2 inches of monthly rainfall
  • UV (maximum) index 8 (Very High) in May in Olhao8
    8 (Very High) UV index
  • 63°F sea temperature in May in Olhao63
    63°F sea temperature

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Olhao weather in June

Expect daytime maximum temperatures of 77°F in Olhao, Algarve in June based on long-term weather averages. There are 11 hours of sunshine per day on average.

  • 77°F maximum daytime temperature in June in Olhao77
    77°F max day temperature
  • 11 hours of sunshine per day
  • 3 days with some rainfall in June in Olhao3
    3 days with some rainfall
  • 59°F minimum night-time temperature in June in Olhao59
    59°F min night temperature
  • 15 hours of daylight per day in June in Olhao15
    15 hours of daylight per day
  • Low heat & humidity in June in OlhaoL
    Low heat & humidity
  • 0.7 inches monthly rainfall in June in Olhao0.7
    0.7 inches of monthly rainfall
  • UV (maximum) index 9 (Very High) in June in Olhao9
    9 (Very High) UV index
  • 66°F sea temperature in June in Olhao66
    66°F sea temperature

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Olhao weather in July

Expect daytime maximum temperatures of 82°F in Olhao, Algarve in July based on long-term weather averages. There are 12 hours of sunshine per day on average.

  • 82°F maximum daytime temperature in July in Olhao82
    82°F max day temperature
  • 12 hours of sunshine per day
  • 1 day with some rainfall in July in Olhao1
    1 day with some rainfall
  • 64°F minimum night-time temperature in July in Olhao64
    64°F min night temperature
  • 14 hours of daylight per day in July in Olhao14
    14 hours of daylight per day
  • Moderate heat & humidity in July in OlhaoM
    Moderate heat & humidity
  • 0.1 inches monthly rainfall in July in Olhao0.1
    0.1 inches of monthly rainfall
  • UV (maximum) index 9 (Very High) in July in Olhao9
    9 (Very High) UV index
  • 70°F sea temperature in July in Olhao70
    70°F sea temperature

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Olhao weather in August

Expect daytime maximum temperatures of 84°F in Olhao, Algarve in August based on long-term weather averages. There are 11 hours of sunshine per day on average.

  • 84°F maximum daytime temperature in August in Olhao84
    84°F max day temperature
  • 11 hours of sunshine per day
  • 1 day with some rainfall in August in Olhao1
    1 day with some rainfall
  • 63°F minimum night-time temperature in August in Olhao63
    63°F min night temperature
  • 14 hours of daylight per day in August in Olhao14
    14 hours of daylight per day
  • Moderate heat & humidity in August in OlhaoM
    Moderate heat & humidity
  • 0.1 inches monthly rainfall in August in Olhao0.1
    0.1 inches of monthly rainfall
  • UV (maximum) index 9 (Very High) in August in Olhao9
    9 (Very High) UV index
  • 70°F sea temperature in August in Olhao70
    70°F sea temperature

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Olhao weather in September

Expect daytime maximum temperatures of 81°F in Olhao, Algarve in September based on long-term weather averages. There are 9 hours of sunshine per day on average.

  • 81°F maximum daytime temperature in September in Olhao81
    81°F max day temperature
  • 9 hours of sunshine per day
  • 2 days with some rainfall in September in Olhao2
    2 days with some rainfall
  • 63°F minimum night-time temperature in September in Olhao63
    63°F min night temperature
  • 12 hours of daylight per day in September in Olhao12
    12 hours of daylight per day
  • Low heat & humidity in September in OlhaoL
    Low heat & humidity
  • 0.6 inches monthly rainfall in September in Olhao0.6
    0.6 inches of monthly rainfall
  • UV (maximum) index 7 (High) in September in Olhao7
    7 (High) UV index
  • 70°F sea temperature in September in Olhao70
    70°F sea temperature

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Olhao weather in October

Expect daytime maximum temperatures of 73°F in Olhao, Algarve in October based on long-term weather averages. There are 7 hours of sunshine per day on average with typically 2.1 inches of rainfall in the month.

  • 73°F maximum daytime temperature in October in Olhao73
    73°F max day temperature
  • 7 hours of sunshine per day
  • 8 days with some rainfall in October in Olhao8
    8 days with some rainfall
  • 57°F minimum night-time temperature in October in Olhao57
    57°F min night temperature
  • 11 hours of daylight per day in October in Olhao11
    11 hours of daylight per day
  • No heat & humidity in October in Olhao0
    No heat & humidity
  • 2.1 inches monthly rainfall in October in Olhao2.1
    2.1 inches of monthly rainfall
  • UV (maximum) index 5 (Moderate) in October in Olhao5
    5 (Moderate) UV index
  • 68°F sea temperature in October in Olhao68
    68°F sea temperature

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Olhao weather in November

Expect daytime maximum temperatures of 66°F in Olhao, Algarve in November based on long-term weather averages. There are 6 hours of sunshine per day on average with 10 days with some rainfall and typically 3.3 inches of rainfall in the month.

  • 66°F maximum daytime temperature in November in Olhao66
    66°F max day temperature
  • 6 hours of sunshine per day
  • 10 days with some rainfall in November in Olhao10
    10 days with some rainfall
  • 50°F minimum night-time temperature in November in Olhao50
    50°F min night temperature
  • 10 hours of daylight per day in November in Olhao10
    10 hours of daylight per day
  • No heat & humidity in November in Olhao0
    No heat & humidity
  • 3.3 inches monthly rainfall in November in Olhao3.3
    3.3 inches of monthly rainfall
  • UV (maximum) index 3 (Moderate) in November in Olhao3
    3 (Moderate) UV index
  • 66°F sea temperature in November in Olhao66
    66°F sea temperature

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Olhao weather in December

Expect daytime maximum temperatures of 61°F in Olhao, Algarve in December based on long-term weather averages. There are 5 hours of sunshine per day on average with 12 days with some rainfall and typically 3.9 inches of rainfall in the month.

  • 61°F maximum daytime temperature in December in Olhao61
    61°F max day temperature
  • 5 hours of sunshine per day
  • 12 days with some rainfall in December in Olhao12
    12 days with some rainfall
  • 46°F minimum night-time temperature in December in Olhao46
    46°F min night temperature
  • 10 hours of daylight per day in December in Olhao10
    10 hours of daylight per day
  • No heat & humidity in December in Olhao0
    No heat & humidity
  • 3.9 inches monthly rainfall in December in Olhao3.9
    3.9 inches of monthly rainfall
  • UV (maximum) index 2 (Low) in December in Olhao2
    2 (Low) UV index
  • 63°F sea temperature in December in Olhao63
    63°F sea temperature

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More about the Olhao

Olhao by month

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

Recommended for the Algarve

  • Explore latest special offers & online deals from TUI
  • Free child places & £0 deposits with direct debit available
  • Book summer & winter sun holidays in 2026/2027

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The climate guide for Algarve (Olhao) 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.

Compare Olhao weather with the UK

The weather chart below compares the average monthly maximum daytime temperature for Olhao, Algarve, Portugal and the UK (London).

Maximum daytime temperature (°F)

Olhao, Algarve, Portugal
UK (London)
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Metric (°C)  |  Imperial (°F)

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