Mayagüez, Puerto Rico climate

Aw Tropical savanna (dry winter)

Mayagüez has a remarkably steady tropical climate (Tropical savanna (dry winter), Köppen Aw). The hottest month is July with an average daily high near 29°C, while the coldest is February averaging around 21°C at night. Precipitation totals about 1023 mm a year and is strongly seasonal — September alone averages 164 mm while March barely receives 18 mm.

☀️ All year

Warm

Daytime highs near 29°C most of the year.

About 58 days a year above 32 °C

🌙 Nights

Stays warm

Even the coolest nights stay near 21°C.

🌧️ Rain

Wet

About 1023 mm of rain a year.

Wettest in September

⛅ Sky & trend

Partly cloudy

A roughly even mix of sun and cloud.

+1.2 °C 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

Hours of sunshine per day

Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)

Mayagüez climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	27	30	31	31	32	29	29	32	33	32	28	27
Avg temp (°C)	26	26	26	27	27	28	28	28	28	28	27	27
Avg low (°C)	25	21	21	23	23	27	27	23	23	23	27	26
Precipitation (mm)	26	27	18	58	64	122	148	137	164	148	82	28

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°C)	27	30	31	31	32	29
Avg temp (°C)	26	26	26	27	27	28
Avg low (°C)	25	21	21	23	23	27
Precipitation (mm)	26	27	18	58	64	122

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	29	32	33	32	28	27
Avg temp (°C)	28	28	28	28	27	27
Avg low (°C)	27	23	23	23	27	26
Precipitation (mm)	148	137	164	148	82	28

How often — frequency of weather events

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	2	3	3	3	5	4	4	5	5	4	3	2
Days with high ≥ 32°C (days)	1	0.4	2	3	5	7	8	9	9	7	3	2
Days with low ≤ 0°C (days)	0.0	—	—	—	0.2	—	—	0.0	—	—	—	—

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Days with measurable rain (days)	2	3	3	3	5	4
Days with high ≥ 32°C (days)	1	0.4	2	3	5	7
Days with low ≤ 0°C (days)	0.0	—	—	—	0.2	—

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	4	5	5	4	3	2
Days with high ≥ 32°C (days)	8	9	9	7	3	2
Days with low ≤ 0°C (days)	—	0.0	—	—	—	—

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	40	39	41	44	59	58	53	51	55	51	48	41
Relative humidity (%)	76	75	75	76	78	79	79	78	78	78	78	77
Wind speed (mph)	11.3	10.9	10.1	9.6	9.1	9.6	10.9	10.2	9.0	8.7	10.4	11.5

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	40	39	41	44	59	58
Relative humidity (%)	76	75	75	76	78	79
Wind speed (mph)	11.3	10.9	10.1	9.6	9.1	9.6

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	53	51	55	51	48	41
Relative humidity (%)	79	78	78	78	78	77
Wind speed (mph)	10.9	10.2	9.0	8.7	10.4	11.5

Methodology & sources

Temperature & precipitation — 1991–2020 normals computed from 12 years of daily observations at Rincon, a weather station, about 19 km from the city centre. 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 →