Climate averages 1991–2020
Mayagüez weather
in August.
A hot, moderately wet month: the 2nd warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in Mayagüez: daytime highs average 31.3°C and nights cool to about 25.8°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 67 mm of rain on roughly 17 days, which makes August a moderately wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 45 min on an average August day.
The nearest other city in this atlas is Arecibo (54 km away). In August its highs average 31.7°C, about as warm as Mayagüez, with 101 mm of rain.
Among the 7 cities listed in Puerto Rico, Mayagüez ranks 4th of 7 for the warmest August highs and 1st of 7 for the driest August (rainfall, lowest first). The mean August high of those 7 cities is 31.1°C; Mayagüez is 0.1°C warmer than that mean.
From August to September, average highs fall by 0.7°C to 30.6°C, and monthly rainfall rises from 67 mm to 98 mm.
The annual picture
August in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Mayagüez climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 28.8°C22.8°C | 22.8°C | 16 | 4.9 | 11.211 h |
| February | 28.9°C22.6°C | 22.6°C | 19 | 6.4 | 11.512 h |
| March | 29.0°C22.7°C | 22.7°C | 28 | 9.1 | 12.012 h |
| April | 29.3°C23.5°C | 23.5°C | 36 | 10.5 | 12.513 h |
| May | 29.8°C24.5°C | 24.5°C | 70 | 14.7 | 13.013 h |
| June | 31.0°C25.4°C | 25.4°C | 47 | 13.2 | 13.213 h |
| July | 31.5°C25.7°C | 25.7°C | 51 | 14.4 | 13.113 h |
| August, selected | 31.3°C25.8°C | 25.8°C | 67 | 16.7 | 12.713 h |
| September | 30.6°C25.6°C | 25.6°C | 98 | 17.4 | 12.312 h |
| October | 29.9°C25.2°C | 25.2°C | 71 | 15.6 | 11.712 h |
| November | 29.2°C24.4°C | 24.4°C | 54 | 10.3 | 11.311 h |
| December | 29.0°C23.5°C | 23.5°C | 18 | 4.5 | 11.111 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
August in nearby cities
- Arecibo in AugustPuerto Rico · 54 kmHigh 31.7°C · Low 24.7°C · 101 mm rain
- Ponce in AugustPuerto Rico · 58 kmHigh 30.5°C · Low 24.8°C · 77 mm rain
- Bayamón in AugustPuerto Rico · 106 kmHigh 31.6°C · Low 24.8°C · 79 mm rain
- San Juan in AugustPuerto Rico · 113 kmHigh 31.5°C · Low 24.7°C · 95 mm rain
- Caguas in AugustPuerto Rico · 115 kmHigh 30.3°C · Low 24.8°C · 127 mm rain
- Carolina in AugustPuerto Rico · 126 kmHigh 31.1°C · Low 24.9°C · 95 mm rain
- Punta Cana in AugustDominican Republic · 140 kmHigh 28.9°C · Low 26.1°C · 105 mm rain
- Salvaleón de Higüey in AugustDominican Republic · 172 kmHigh 30.3°C · Low 24.5°C · 88 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Mayagüez) is explained once on the Mayagüez year overview and on the Sources, method and limits page.