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Cozumel, Quintana Roo climate
Aw Tropical savanna (dry winter)
Cozumel has a remarkably steady tropical climate (Tropical savanna (dry winter), Köppen Aw). The hottest month is August with an average daily high near 93°F, while the coldest is January averaging around 68°F at night. Precipitation totals about 52 inches a year and is strongly seasonal — October alone averages 8.7 inches while March barely receives 1.83 inches.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresClear vs cloudy days
Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day countsCozumel climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 84 | 86 | 87 | 90 | 91 | 91 | 91 | 93 | 92 | 89 | 86 | 85 |
| Avg temp (°F) | 76 | 77 | 78 | 81 | 83 | 83 | 83 | 84 | 84 | 82 | 79 | 77 |
| Avg low (°F) | 68 | 69 | 69 | 72 | 74 | 76 | 75 | 76 | 76 | 74 | 71 | 69 |
| Precipitation (in) | 2.7 | 2.4 | 1.8 | 2.7 | 3.8 | 6.6 | 3.9 | 3.7 | 6.8 | 8.7 | 5.3 | 3.8 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 84 | 86 | 87 | 90 | 91 | 91 |
| Avg temp (°F) | 76 | 77 | 78 | 81 | 83 | 83 |
| Avg low (°F) | 68 | 69 | 69 | 72 | 74 | 76 |
| Precipitation (in) | 2.7 | 2.4 | 1.8 | 2.7 | 3.8 | 6.6 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 91 | 93 | 92 | 89 | 86 | 85 |
| Avg temp (°F) | 83 | 84 | 84 | 82 | 79 | 77 |
| Avg low (°F) | 75 | 76 | 76 | 74 | 71 | 69 |
| Precipitation (in) | 3.9 | 3.7 | 6.8 | 8.7 | 5.3 | 3.8 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 7 | 5 | 4 | 5 | 7 | 10 | 9 | 10 | 13 | 13 | 9 | 8 |
| Days with high ≥ 90°F (days) | 3 | 4 | 7 | 12 | 17 | 17 | 19 | 22 | 18 | 12 | 5 | 3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 7 | 5 | 4 | 5 | 7 | 10 |
| Days with high ≥ 90°F (days) | 3 | 4 | 7 | 12 | 17 | 17 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 9 | 10 | 13 | 13 | 9 | 8 |
| Days with high ≥ 90°F (days) | 19 | 22 | 18 | 12 | 5 | 3 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 49 | 37 | 35 | 36 | 45 | 57 | 49 | 52 | 57 | 57 | 51 | 48 |
| Clear days (≤ 30% cloud) | 10 | 14 | 17 | 16 | 13 | 9 | 9 | 8 | 6 | 8 | 9 | 10 |
| Partly cloudy days (30–70%) | 12 | 10 | 11 | 10 | 10 | 9 | 13 | 14 | 12 | 11 | 12 | 14 |
| Cloudy days (≥ 70%) | 8 | 4 | 4 | 4 | 8 | 13 | 8 | 9 | 11 | 12 | 9 | 7 |
| Relative humidity (%) | 76 | 75 | 74 | 75 | 77 | 82 | 80 | 80 | 81 | 82 | 79 | 78 |
| Wind speed (mph) | 7.7 | 7.6 | 7.9 | 7.4 | 7.0 | 7.0 | 6.2 | 6.1 | 6.0 | 6.9 | 7.6 | 7.5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 49 | 37 | 35 | 36 | 45 | 57 |
| Clear days (≤ 30% cloud) | 10 | 14 | 17 | 16 | 13 | 9 |
| Partly cloudy days (30–70%) | 12 | 10 | 11 | 10 | 10 | 9 |
| Cloudy days (≥ 70%) | 8 | 4 | 4 | 4 | 8 | 13 |
| Relative humidity (%) | 76 | 75 | 74 | 75 | 77 | 82 |
| Wind speed (mph) | 7.7 | 7.6 | 7.9 | 7.4 | 7.0 | 7.0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 49 | 52 | 57 | 57 | 51 | 48 |
| Clear days (≤ 30% cloud) | 9 | 8 | 6 | 8 | 9 | 10 |
| Partly cloudy days (30–70%) | 13 | 14 | 12 | 11 | 12 | 14 |
| Cloudy days (≥ 70%) | 8 | 9 | 11 | 12 | 9 | 7 |
| Relative humidity (%) | 80 | 80 | 81 | 82 | 79 | 78 |
| Wind speed (mph) | 6.2 | 6.1 | 6.0 | 6.9 | 7.6 | 7.5 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 11 years of daily observations at Cozumel (dge), a weather station, inside the city. The underlying daily records come from NOAA's global station network.
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.