The climate in Mercedes during May can be summarized as mild and reasonably dry.
May is in the fall / autumn in Mercedes and is typically the 4th coldest month of the year. Daytime maximum temperatures average around 20°C (68°F), whilst at night 9°C (48°F) is normal.
| Daytime temperature | 20°C 68°F |
|---|---|
| Nightly temperature | 8.6°C 47.5°F |
| Average temperature | 14.3°C 57.7°F |
| Daily sunshine | 5.8 hrs |
| Avg rainfall | 79 mm 3.1 ins |
| Rainy days | 7 days |
| Sea temperature | 16.9°C 62.5°F |
| Humidity | 79% |
| Windspeed | 10.8kph 7 mph |
On average May is the 4th driest month of the year in Mercedes with around 79mm 3.1 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 7 days, although this may vary considerably.
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 Mercedes in May 2025.
| Hottest month: | January | 31.2°C 88.2°F |
|---|---|---|
| Driest month: | June | 60mm 2.4ins |
| Sunniest month: | January | 9.7hrs |
| Coldest month: | June | 16.5°C 61.7°F |
| Wettest month: | February | 134mm 5.3ins |