The climate in Mérida during September can be summarized as hot and dry.
September is in the fall / autumn in Mérida and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a comfortable 30°C (86°F), whilst at night 16°C (61°F) is normal.
Daytime temperature | 30°C 85.9°F |
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Nightly temperature | 16.1°C 60.9°F |
Average temperature | 23°C 73.4°F |
Daily sunshine | 9 hrs |
Avg rainfall | 22 mm 0.9 ins |
Rainy days | 6 days |
Sea temperature | 21.2°C 70.2°F |
Humidity | 51% |
Windspeed | 11.5kph 7 mph |
On average September is the 3rd driest month of the year in Mérida with around 22mm 0.9 inches of rain making it a dry time to visit. This rainfall is typically spread over 6 days, although this may vary considerably.
On the flip side this corresponds to an average of 9 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 Mérida in September 2025.
Best places to visit in September
Hottest month: | July | 33.7°C 92.7°F |
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Driest month: | July | 4mm 0.2ins |
Sunniest month: | August | 11.9hrs |
Coldest month: | January | 13.1°C 55.6°F |
Wettest month: | December | 69mm 2.7ins |