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Mérida, Yucatán climate
Aw Tropical savanna (dry winter)
Mérida has a remarkably steady tropical climate (Tropical savanna (dry winter), Köppen Aw). The hottest month is May with an average daily high near 97°F, while the coldest is January averaging around 62°F at night. Precipitation totals about 41 inches a year and is strongly seasonal — September alone averages 6.9 inches while March barely receives 0.82 inches.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresHours of sunshine per day
Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)Mérida climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 86 | 89 | 92 | 96 | 97 | 95 | 95 | 95 | 94 | 91 | 88 | 86 |
| Avg temp (°F) | 74 | 76 | 78 | 82 | 83 | 82 | 82 | 82 | 82 | 80 | 77 | 75 |
| Avg low (°F) | 62 | 63 | 64 | 68 | 70 | 70 | 70 | 70 | 70 | 68 | 66 | 63 |
| Precipitation (in) | 1.3 | 1.0 | 0.8 | 1.3 | 2.7 | 6.6 | 5.4 | 5.7 | 6.9 | 5.4 | 2.2 | 1.4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 86 | 89 | 92 | 96 | 97 | 95 |
| Avg temp (°F) | 74 | 76 | 78 | 82 | 83 | 82 |
| Avg low (°F) | 62 | 63 | 64 | 68 | 70 | 70 |
| Precipitation (in) | 1.3 | 1.0 | 0.8 | 1.3 | 2.7 | 6.6 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 95 | 95 | 94 | 91 | 88 | 86 |
| Avg temp (°F) | 82 | 82 | 82 | 80 | 77 | 75 |
| Avg low (°F) | 70 | 70 | 70 | 68 | 66 | 63 |
| Precipitation (in) | 5.4 | 5.7 | 6.9 | 5.4 | 2.2 | 1.4 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 50 | 44 | 40 | 41 | 51 | 63 | 57 | 56 | 60 | 52 | 44 | 50 |
| Relative humidity (%) | 70 | 65 | 59 | 57 | 60 | 74 | 77 | 80 | 84 | 83 | 77 | 74 |
| Wind speed (mph) | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.6 | 0.5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 50 | 44 | 40 | 41 | 51 | 63 |
| Relative humidity (%) | 70 | 65 | 59 | 57 | 60 | 74 |
| Wind speed (mph) | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 57 | 56 | 60 | 52 | 44 | 50 |
| Relative humidity (%) | 77 | 80 | 84 | 83 | 77 | 74 |
| Wind speed (mph) | 0.5 | 0.5 | 0.5 | 0.5 | 0.6 | 0.5 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from CONAGUA / SMN, Mexico's national weather service, measured at Merida (conagua), about 4 km from the city centre.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.