Mérida is warmest in April, averaging 38° by day and 23° at night. The wettest month is June with 276 mm, and the year brings about 1207 mm in total.
Month by month
| Month | High | Low | Rain | Sea | Daylight | Good for |
|---|---|---|---|---|---|---|
| January | 30° | 19° | 37 mm | 24° | 10.9 h | Beach weather |
| February | 32° | 20° | 34 mm | 24° | 11.3 h | Beach weather |
| March | 35° | 21° | 19 mm | 26° | 11.9 h | Beach weather |
| April | 38° | 23° | 21 mm | 27° | 12.5 h | Very hot |
| May | 37° | 24° | 81 mm | 28° | 13.0 h | Very hot |
| June | 33° | 24° | 276 mm | 28° | 13.3 h | Rainy season |
| July | 32° | 24° | 130 mm | 28° | 13.2 h | Mild |
| August | 32° | 24° | 164 mm | 28° | 12.7 h | Mild |
| September | 31° | 24° | 165 mm | 29° | 12.1 h | Mild |
| October | 31° | 23° | 180 mm | 29° | 11.5 h | Mild |
| November | 30° | 21° | 66 mm | 27° | 11.0 h | Beach weather |
| December | 30° | 20° | 34 mm | 25° | 10.7 h | Beach weather |
High and low are average daily maximum and minimum, rain is typical monthly total, sea is the average surface temperature, daylight is the hours between sunrise and sunset mid-month. Climate normals from NASA POWER and NOAA MUR — averages, not promises.
When to go
Beach weather: January, February, March, November and December — highs around 31°, nights no colder than 19°, and at most 66 mm of rain in a month. The sea sits at 24–27° then.
Wet season: June — up to 276 mm in a single month.
Serious heat: In April and May the average high reaches 38°.