The climate in San Clemente during May can be summarized as warm and very dry.
May is in the fall / autumn in San Clemente and is typically the 6th coldest month of the year. Daytime maximum temperatures average around 23°C (73°F), whilst at night 15°C (58°F) is normal.
| Daytime temperature | 22.8°C 73°F |
|---|---|
| Nightly temperature | 14.6°C 58.3°F |
| Average temperature | 18.7°C 65.7°F |
| Daily sunshine | 5.8 hrs |
| Avg rainfall | 1 mm 0 ins |
| Rainy days | 1 days |
| Sea temperature | 18.5°C 65.4°F |
| Humidity | 80% |
| Windspeed | 14kph 9 mph |
On average May is the 6th wettest month of the year in San Clemente with around 1mm 0 inches of rain making it a very dry time to visit.
On the flip side this corresponds to an average of 5.8 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 San Clemente in May 2025.
| Hottest month: | February | 26.9°C 80.4°F |
|---|---|---|
| Driest month: | January | 1mm 0ins |
| Sunniest month: | April | 7.3hrs |
| Coldest month: | August | 19.9°C 67.8°F |
| Wettest month: | February | 1mm 0ins |