Humacao Weather in August
Humacao in August averages 30°C (86°F) during the day and 25°C (77°F) at night. Keep in mind that quite a bit of rainfall is expected this month.
Rainfall in Humacao in August
Based on our climate data of the past 30 years, about 20 days of rain are anticipated, with 156 mm (6.1 in) on average. Rain falls regularly this month and can be quite heavy when it does. Showers can be substantial, so waterproof gear is a good idea.
Temperature in Humacao in August
Daytime highs in Humacao in August reach 30°C (86°F), with nights around 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.
Sunshine in Humacao in August
The month enjoys around 267 hours of sunshine, creating mostly sunny days with good weather conditions.If you prefer dry days with pleasant temperatures, 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 Humacao's climate page.
Humacao Temperature in August
Min Temperature
25°C (77°F)
Max Temperature
30°C (86°F)
Chance of Rain
66%
Precipitation
156 mm (6.1 in)
Rainy days
20 days
Humidity
76% *
Sunshine
267 hours *
Percentage Sunshine
68% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Humacao typically stay consistent throughout August, with daily highs averaging around 30°C (86°F). Nights are warm, with lows around 26°C (79°F).
Average temperatures in August
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 August
Historical weather for Humacao in August
Browse day-by-day weather records for Humacao spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Humacao historical weather extremes in August
Our historical data for Humacao spans 1976 to 2025, revealing these weather extremes.
- Humacao recorded its highest August temperature of 35°C (95°F) on August 20, 1980.
- On August 23, 2011, Humacao saw its coldest August day with temperatures maxing out at 27°C (81°F).
- Nighttime temperatures dropped to 22°C (72°F) on August 11, 1986, marking the coldest August night on record.
Best Places in Puerto Rico in August
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 August →
perfect weather
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What to Wear in Humacao in August
Warm but pleasant conditions in Humacao in August. 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. It's going to pour! Pack a good poncho and prepare for very wet conditions. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Humacao in August
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 Humacao's climate page.
Temperature Rainfall Sunshine Humidity
See the full Humacao climate overview or explore weather in Puerto Rico.
