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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.
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)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 (m/s) | 5.1 | 4.9 | 4.5 | 4.3 | 4.1 | 4.3 | 4.9 | 4.6 | 4.0 | 3.9 | 4.6 | 5.1 |
| 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 (m/s) | 5.1 | 4.9 | 4.5 | 4.3 | 4.1 | 4.3 |
| 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 (m/s) | 4.9 | 4.6 | 4.0 | 3.9 | 4.6 | 5.1 |
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.