Mayaguez Weather in May
May in Mayaguez brings high temperatures around 30°C (86°F) during the day, dropping to 25°C (77°F) at night, with quite a bit of rainfall expected, averaging around 98 mm (3.9 in) for the month.
Rainfall in Mayaguez in May
Historically, the month has about 15 days of rain, averaging 98 mm (3.9 in) in total. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.
Temperature in Mayaguez in May
May in Mayaguez brings typical temperatures with highs around 30°C (86°F) and lows of 25°C (77°F). This kind of day-to-night contrast is typical for this time of year. At 25°C (77°F) overnight, it stays warm after dark. Light, breathable clothing and good airflow in your room make a noticeable difference.If you prefer enjoying temperate temperatures and rain-free days, January, February, March, April, November and December typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Mayaguez Temperature in May
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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
49-year average (1976-2025)
Based on our historical records, temperatures in Mayaguez typically stay consistent throughout May, with daily highs averaging around 30°C (86°F). Nights are warm, with lows around 23°C (73°F).
Average temperatures in May
Historical weather records for Mayaguez in May
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 May
Based on weather observations in Mayaguez between 1979 and 2026, these are the recorded extremes during May.
- The hottest May day on record in Mayaguez reached 37°C (99°F) (May 18, 1997).
- On May 20, 1979, Mayaguez saw its coldest May day with temperatures maxing out at 23°C (73°F).
- Mayaguez registered its coldest May night on May 9, 1989, with temperatures dropping to 18°C (64°F).
Best Places in Puerto Rico in May
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 May →
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 May
Warm weather calls for comfortable, breathable clothing in May. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). High rain levels are expected, so pack waterproof gear and an umbrella or poncho.
What To Do in Mayaguez in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling7/10 -
Walking7/10 -
Camping8/10 -
Outdoor sports7/10
Mayaguez 3-Day Forecast
See the full Mayaguez climate overview or explore weather in Puerto Rico.
Popular in May
Where to go in May - average daytime high across popular destinations.
San Juan
30°C (86°F) Rio Grande29°C (84°F) Aguada
29°C (84°F) Luquillo29°C (84°F) Culebra28°C (82°F) Rincon29°C (84°F) Vieques
28°C (82°F) Fajardo29°C (84°F) 
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