Mayaguez Weather in January
In Mayaguez, January brings high daytime temperatures around 29°C (84°F), with nights cooling to 23°C (73°F). It is the driest month of the year, with minimal rainfall.
Rainfall in Mayaguez in January
The month is known for having the least rain of the year. Make the most of the sunshine and clear skies. Records from the past 30 years suggest around 19 days of rain, with 23 mm (0.9 in) average for the month. Rain is frequent but mostly light this month, with brief showers more common than heavy downpours.
Temperature in Mayaguez in January
Mayaguez in January is worth a visit. The temperature is excellent, with 29°C (84°F) during the day and 23°C (73°F) at night. Conditions stay fairly consistent through the month, making it easier to plan what to wear. At 23°C (73°F) overnight, nights are warm enough to sit outside comfortably in light clothing.Our weather planner can help you find worldwide destinations with pleasant weather during this period. January, February, March, April, November and December typically offer the best weather for Mayaguez.
Mayaguez Temperature in January
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Mayaguez Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Mayaguez - and find the best time to visit.
Daily Historical Temperatures
50-year average (1977-2026)
Based on our historical records, temperatures in Mayaguez typically stay consistent throughout January, with daily highs averaging around 29°C (84°F). Nights are warm, with lows around 20°C (68°F).
Average temperatures in January
Historical weather records for Mayaguez in January
Browse day-by-day weather records for Mayaguez spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Mayaguez historical weather extremes in January
Based on 25 years of weather observations (2000-2025), these are the most extreme conditions recorded in Mayaguez.
- The hottest January day on record in Mayaguez reached 33°C (91°F) (January 1, 2001).
- Mayaguez experienced its chilliest January day on January 28, 2006, reaching only 25°C (77°F).
- The lowest overnight temperature recorded in January was 13°C (55°F) (January 20, 2000).
Best Places in Puerto Rico in January
Find out more about the weather in Puerto Rico and which places have the best travel conditions in this month. See all of Puerto Rico in January →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Mayaguez in January
Warm but pleasant conditions in Mayaguez in January. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Light rain is possible, so consider bringing a small umbrella or rain jacket.
What To Do in Mayaguez in January
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling8/10 -
Walking8/10 -
Camping10/10 -
Outdoor sports8/10
Mayaguez 3-Day Forecast
See the full Mayaguez climate overview or explore weather in Puerto Rico.
Popular in January
Where to go in January - average daytime high across popular destinations.
San Juan
28°C (82°F) Rio Grande28°C (82°F) Aguada
28°C (82°F) Luquillo27°C (81°F) Culebra27°C (81°F) Rincon28°C (82°F) Vieques27°C (81°F) Fajardo27°C (81°F) 
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