Mérida weather in September
September is one of the least pleasant months in Mérida: highs of 31°C (87°F) and about 188 mm (7.4 in) of rain on average. Nights average 24°C (75°F) and cloud cover 60% (NASA POWER, 2001–2025 averages). It is the wettest month of the year and the 5th coolest. Compared with August, it is cooler and wetter; October brings highs of 30°C (85°F) and 127 mm (5.0 in) of rain.
Is September a good time to visit Mérida?
least pleasant month Weather score 57/100.
September is one of the least pleasant months for weather in Mérida. For better conditions, consider Nov–Mar.
Does it rain a lot in Mérida in September?
Yes, it is one of the rainy months: about 188 mm (7.4 in) falls in an average September. It is the wettest month of the year.
How warm is Mérida in September?
Days average 31°C (87°F) and nights 24°C (75°F).
Mérida weather by month
| Month | High | Low | Rain | Cloud | Weather |
|---|---|---|---|---|---|
| January | 29°C (84°F) | 18°C (64°F) | 33 mm | 51% | best |
| February | 31°C (87°F) | 19°C (66°F) | 29 mm | 46% | best |
| March | 33°C (91°F) | 20°C (68°F) | 20 mm | 37% | best |
| April | 35°C (96°F) | 22°C (72°F) | 26 mm | 36% | fair |
| May | 35°C (96°F) | 24°C (74°F) | 73 mm | 49% | least pleasant |
| June | 33°C (91°F) | 24°C (75°F) | 183 mm | 63% | least pleasant |
| July | 32°C (89°F) | 24°C (75°F) | 128 mm | 56% | fair |
| August | 32°C (89°F) | 24°C (75°F) | 152 mm | 56% | least pleasant |
| September | 31°C (87°F) | 24°C (75°F) | 188 mm | 60% | least pleasant |
| October | 30°C (85°F) | 22°C (72°F) | 127 mm | 51% | fair |
| November | 29°C (84°F) | 20°C (68°F) | 52 mm | 43% | best |
| December | 29°C (84°F) | 19°C (66°F) | 34 mm | 52% | best |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis). Page updated . How we rate months