Mercedes Weather in May
What's the weather like in Mercedes (Heredia) in May 2025?
The climate in Mercedes during May can be summarized as warm and very wet.
May is in the spring in Mercedes and is typically the warmest month of the year. Daytime maximum temperatures average around 23°C (74°F), whilst at night 15°C (58°F) is normal.
| Daytime temperature | 23.1°C 73.5°F |
|---|---|
| Nightly temperature | 14.6°C 58.2°F |
| Average temperature | 18.8°C 65.8°F |
| Daily sunshine | 7 hrs |
| Avg rainfall | 355 mm 14 ins |
| Rainy days | 20 days |
| Sea temperature | 29°C 84.1°F |
| Humidity | 82% |
| Windspeed | 12.6kph 8 mph |
On average May is the 3rd wettest month of the year in Mercedes with around 355mm 14 inches of rain making it a very wet time to visit. This rainfall is typically spread over 20 days, although this may vary considerably.
On the flip side this corresponds to an average of 7 hours of sunshine per day.
May temperatures in Mercedes
May rainfall
May hourly sunshine
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 Mercedes in May 2025.
Other monthly averages
Mercedes weather stats
| Hottest month: | May | 22.8°C 73°F |
|---|---|---|
| Driest month: | March | 66mm 2.6ins |
| Sunniest month: | March | 7.3hrs |
| Coldest month: | January | 21°C 69.8°F |
| Wettest month: | September | 424mm 16.7ins |
© Google