Bayamon Weather in July

During July, Bayamon experiences very high daytime temperatures of 31°C (88°F) and cooler nights around 25°C (77°F). Expect quite a bit of rainfall. Around 91 mm (3.6 in) is typical.

Rainfall in Bayamon in July

Typically around 19 days of rainfall are expected, averaging 91 mm (3.6 in) for the month. With rain spread across many days but low totals, showers are typically short and light rather than heavy.

Temperature in Bayamon in July

July in Bayamon brings typical temperatures with highs around 31°C (88°F) and lows of 25°C (77°F). Mornings and evenings are often more comfortable than the peak afternoon hours. At 25°C (77°F) overnight, it stays warm after dark. Light, breathable clothing and good airflow in your room make a noticeable difference.

Sunshine in Bayamon in July

There are approximately 281 hours of sunshine this month, resulting in mostly clear days.

Wind Speed in Bayamon in July

July sees wind speeds averaging 4 m/s (8 knots). You'll experience variable conditions with moderate winds that create small waves on water and keep branches moving. Conditions range from light winds to moderate breezes throughout the month.

Average water temperature in July

At 28°C (82°F), the water is warm and comfortable for swimming. Most people find this temperature ideal for spending longer periods in the water.

For Bayamon itself, January, February, March and December generally stand out with 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.

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• January
• February
• March
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• May
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• August

• September
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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 July

Min Temperature 25°C (77°F)  

Max Temperature 31°C (88°F)  

Water Temperature 28°C (82°F) *  

Chance of Rain 63%  

Precipitation 91 mm (3.6 in)  

Rainy days 19 days  

Humidity 76% *  

Windspeed 4 m/s (8 knots) *  

Sunshine 281 hours *  

Percentage Sunshine 68% *  

* Data from: San Juan, Puerto Rico (16 KM, 10 Miles).

Daily Historical Temperatures

50-year average (1976-2025)

Based on our historical records, temperatures in Bayamon typically stay consistent throughout July, with daily highs averaging around 31°C (88°F). Nights are warm, with lows around 26°C (79°F).

Average temperatures in July

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Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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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 July

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Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

‹ January February March April May June July August September October November December ›

Historical weather for Bayamon in July

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.

Historical weather Temperatures Precipitation

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‹ January February March April May June July August September October November December ›

Bayamon historical weather extremes in July

The extremes listed below come from historical weather data collected in Bayamon from 1976 through 2025.

• The warmest day in July was on July 5, 2024, with a maximum of 34°C (93°F).
• The coldest July day was on July 11, 1993, with a maximum of 27°C (81°F).
• Bayamon registered its coldest July night on July 13, 2003, with temperatures dropping to 22°C (72°F).

What to Wear in Bayamon in July

Warm temperatures in July 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. The water temperature sits at about 28°C (82°F), making it perfect for swimming and water activities. Don't forget to pack your favorite swimwear and perhaps some snorkel gear. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Bayamon in July

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

9/10

Cycling

7/10

Walking

7/10

Camping

8/10

Outdoor sports

7/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Puerto Rico, check out our Bayamon's climate page.

More climate data for Bayamon

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Bayamon climate overview or explore weather in Puerto Rico.