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.

☀️ All year

Hot

Daytime highs near 93°F most of the year.

About 137 days a year above 90 °F

🌙 Nights

Stays warm

Even the coolest nights stay near 68°F.

🌧️ Rain

Wet

About 52 in of rain a year.

Wettest in October

⛅ Sky & trend

Fairly sunny

More sun than cloud through the year.

+0.3 °F vs 50 years ago

Temperature & precipitation

Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figures

Clear vs cloudy days

Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day counts

Cozumel 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.

How we build these numbers →