Climate averages 1991–2020
Mayagüez weather
in January.
A hot, fairly dry month: the coolest and the driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
January is a hot month in Mayagüez: daytime highs average 28.8°C and nights cool to about 22.8°C. By daytime temperature it is the coolest month of the year.
Expect about 16 mm of rain on roughly 5 days, which makes January a fairly dry month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 11 h 10 min on an average January day.
The nearest other city in this atlas is Arecibo (54 km away). In January its highs average 28.3°C, 0.5°C cooler than Mayagüez, with 41 mm of rain.
Among the 7 cities listed in Puerto Rico, Mayagüez ranks 1st of 7 for the warmest January highs and 1st of 7 for the driest January (rainfall, lowest first). The mean January high of those 7 cities is 28.0°C; Mayagüez is 0.9°C warmer than that mean.
From January to February, average highs rise by 0.1°C to 28.9°C, and monthly rainfall rises from 16 mm to 19 mm.
The annual picture
January 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, selected | 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 | 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
January in nearby cities
- Arecibo in JanuaryPuerto Rico · 54 kmHigh 28.3°C · Low 21.5°C · 41 mm rain
- Ponce in JanuaryPuerto Rico · 58 kmHigh 28.0°C · Low 21.8°C · 22 mm rain
- Bayamón in JanuaryPuerto Rico · 106 kmHigh 27.9°C · Low 21.5°C · 38 mm rain
- San Juan in JanuaryPuerto Rico · 113 kmHigh 28.0°C · Low 21.5°C · 39 mm rain
- Caguas in JanuaryPuerto Rico · 115 kmHigh 27.1°C · Low 21.7°C · 49 mm rain
- Carolina in JanuaryPuerto Rico · 126 kmHigh 27.6°C · Low 21.8°C · 39 mm rain
- Punta Cana in JanuaryDominican Republic · 140 kmHigh 26.0°C · Low 23.7°C · 39 mm rain
- Salvaleón de Higüey in JanuaryDominican Republic · 172 kmHigh 27.0°C · Low 21.6°C · 27 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.