Mercedes Weather in September
What's the weather like in Mercedes (Heredia) in September 2024?
The climate in Mercedes during September can be summarized as warm and very wet.
September is in the fall / autumn in Mercedes and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around 23°C (72°F), whilst at night 15°C (59°F) is normal.
| Daytime temperature | 22.5°C 72.4°F |
|---|---|
| Nightly temperature | 15°C 58.9°F |
| Average temperature | 18.7°C 65.7°F |
| Daily sunshine | 6.2 hrs |
| Avg rainfall | 424 mm 16.7 ins |
| Rainy days | 24 days |
| Sea temperature | 28.8°C 83.8°F |
| Humidity | 85% |
| Windspeed | 10.8kph 7 mph |
On average September is the wettest month of the year in Mercedes with around 424mm 16.7 inches of rain making it a very wet time to visit. This rainfall is typically spread over 24 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.2 hours of sunshine per day.
September temperatures in Mercedes
September rainfall
September 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 September 2024.
Other monthly averages
Best places to visit in September
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 |
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