Bayamon Weather in May
During May, Bayamon experiences very high daytime temperatures of 30°C (86°F) and cooler nights around 24°C (75°F). Expect quite a bit of rainfall. Around 130 mm (5.1 in) is typical.
Rainfall in Bayamon in May
The climate data from previous years indicates about 16 days of rain, averaging 130 mm (5.1 in) for the month. Expect frequent rainfall this month, and not just light drizzle. When it rains, it tends to come down hard.
Temperature in Bayamon in May
May in Bayamon brings typical temperatures with highs around 30°C (86°F) and lows of 24°C (75°F). Sunshine and humidity can make it feel even warmer than the raw temperature suggests. With lows around 24°C (75°F), the nights are warm enough that a sheet is usually all you need for bedding.
Sunshine in Bayamon in May
The city usually sees around 255 hours of sunlight, indicating many sunny days — a great month for sightseeing.
Wind Speed in Bayamon in May
Average wind speeds reach 3 m/s (6 knots) in May, creating light breezes that feel pleasant throughout the day. Some days are calmer, while others bring slightly more active breezes.
Average water temperature in May
With water at 27°C (81°F), you can expect warm, pleasant conditions for any water activity. There's no adjustment period — it feels comfortable straight away.May in Bayamon has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Puerto Rico, check out our Bayamon's climate page.
Bayamon Temperature in May
Min Temperature
24°C (75°F)
Max Temperature
30°C (86°F)
Water Temperature
27°C (81°F) *
Chance of Rain
53%
Precipitation
130 mm (5.1 in)
Rainy days
16 days
Humidity
75% *
Windspeed
3 m/s (6 knots) *
Sunshine
255 hours *
Percentage Sunshine
63% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Bayamon typically stay consistent throughout May, with daily highs averaging around 30°C (86°F). Nights are warm, with lows around 24°C (75°F).
Average temperatures in May
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather for Bayamon in May
Browse day-by-day weather records for Bayamon spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Bayamon historical weather extremes in May
According to our 50 years of weather records for Bayamon, the following extremes were recorded between 1976 and 2026.
- On May 11, 1980, temperatures climbed to 35°C (95°F), marking the warmest May day on record.
- The lowest daytime temperature in May was 24°C (75°F), recorded on May 23, 2004.
- Bayamon registered its coldest May night on May 30, 2011, with temperatures dropping to 16°C (61°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
pleasant
tolerable
unpleasant
poor
What to Wear in Bayamon in May
Warm temperatures in May make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Prepare for significant rainfall with proper waterproof clothing and shoes. Expect water temperatures of around 27°C (81°F), which is ideal for taking a refreshing dip. Bring swimwear and consider packing a towel for drying off. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Bayamon in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Puerto Rico, check out our Bayamon's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Bayamon climate overview or explore weather in Puerto Rico.
