Isabela Weather in July
July in Isabela brings very high temperatures, with daytime highs of 31°C (88°F) and nights around 26°C (79°F). Quite a bit of rainfall is expected, around 93 mm (3.7 in), so pack an umbrella.
Rainfall in Isabela in July
Climate statistics over the past 30 years suggest around 18 days of rain, with 93 mm (3.7 in) average for the month. Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.
Temperature in Isabela in July
July in Isabela brings very high temperatures, with highs of 31°C (88°F) and nights around 26°C (79°F). The hottest part of the day is usually in the afternoon, so lighter clothing can help you stay comfortable. At 26°C (79°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 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.
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 Isabela's climate page.
Isabela Temperature in July
Min Temperature
26°C (79°F)
Max Temperature
31°C (88°F)
Chance of Rain
59%
Precipitation
93 mm (3.7 in)
Rainy days
18 days
Daily Historical Temperatures
48-year average (1976-2025)
Based on our historical records, temperatures in Isabela typically stay consistent throughout July, with daily highs averaging around 31°C (88°F). Nights are warm, with lows around 24°C (75°F).
Average temperatures in July
Historical weather for Isabela in July
Browse day-by-day weather records for Isabela spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Isabela historical weather extremes in July
Based on weather observations in Isabela between 1997 and 2025, these are the recorded extremes during July.
- The warmest day in July was on July 21, 2021, with a maximum of 39°C (102°F).
- The coldest July day was on July 12, 2015, with a maximum of 26°C (79°F).
- The coldest night in July in Isabela was on July 13, 2025, with a minimum of 20°C (68°F).
Best Places in Puerto Rico in July
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 July →
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What to Wear in Isabela in July
Warm weather calls for comfortable, breathable clothing in July. 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 Isabela in July
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 Isabela's climate page.
See the full Isabela climate overview or explore weather in Puerto Rico.
