Olhao weather in May 2025

Expect 72°F daytime maximum temperatures in the shade with on average 10 hours of sunshine per day in Olhao in May. Check more long-term weather averages for Olhao in May before you book your next holiday to Algarve in 2025/2026.

72
72°F max day temperature
10
10 hours of sunshine per day
5
5 days with some rainfall
54
54°F min night temperature
14
14 hours of daylight per day
0
No heat & humidity
1.2
1.2 inches of monthly rainfall
8
8 (Very High) UV index
63
63°F sea temperature

More about the Olhao

Olhao by month

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The May weather guide for Algarve (Olhao) shows long term 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)

More about the Algarve

How hot is it in Olhao in May?

Daytime temperatures usually reach 72°F in Olhao in May, falling to 54°F at night.

How sunny is it in Olhao in May?

There are normally 10 hours of bright sunshine each day in Olhao in May - that's 70% of daylight hours.

How warm is the sea around Olhao in May?

The average sea temperature around Olhao in May is 63°F.

Does it rain in Olhao in May?

There are usually 5 days with some rain in Olhao in May and the average monthly rainfall is 1.2 inches.

Olhao May sunrise & sunset times

Browse the sunrise and sunset times for Olhao in May 2025. Select a month to view Olhao sunrise and sunset times for the next 12 months.

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

Date	Sunrise times	Sunset times
Thursday, 1st May 2025	05:37	19:21
Friday, 16th May 2025	05:22	19:34
Saturday, 31st May 2025	05:14	19:45

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Algarve - quick facts
Flight time^✝	3 hours
Time difference	UK +0 hours
Language(s)	Portuguese
Currency	Euro
Electricity	C + F plug (230V)
Driving side	Right
Why visit?	Beaches Nature Nightlife
Tourist info	Algarve Promotion Bureau