The climate in Castro during May can be summarized as cool and very wet.
May is in the fall / autumn in Castro and is typically the 5th coldest month of the year. Daytime maximum temperatures average around a cool 12°C (53°F), whilst at night 7°C (44°F) is normal.
Daytime temperature | 11.5°C 52.7°F |
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Nightly temperature | 6.5°C 43.7°F |
Average temperature | 9°C 48.2°F |
Daily sunshine | 4.1 hrs |
Avg rainfall | 297 mm 11.7 ins |
Rainy days | 11 days |
Sea temperature | 11.9°C 53.5°F |
Humidity | 90% |
Windspeed | 12.6kph 8 mph |
On average May is the 3rd wettest month of the year in Castro with around 297mm 11.7 inches of rain making it a very wet time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.
On the flip side this corresponds to an average of 4.1 hours of sunshine per day.
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Castro in May 2025.
Hottest month: | January | 16.5°C 61.7°F |
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Driest month: | January | 77mm 3ins |
Sunniest month: | February | 10hrs |
Coldest month: | July | 9.5°C 49.1°F |
Wettest month: | June | 367mm 14.4ins |