Cabo Rojo Weather in August
With daytime temperatures of 31°C (88°F) and nighttime lows of 26°C (79°F), August in Cabo Rojo brings very high temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 79 mm (3.1 in) falls on average.
Rainfall in Cabo Rojo in August
The climate data from previous years indicates about 18 days of rain, averaging 79 mm (3.1 in) for the month. Rain falls on many days this month, but usually in relatively small amounts. A light waterproof is more useful than a heavy umbrella.
Temperature in Cabo Rojo in August
Daytime highs in Cabo Rojo in August reach 31°C (88°F), with 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. With overnight lows of 26°C (79°F), nights stay very warm. Air conditioning makes a real difference if you're sensitive to heat. A cold shower before bed can also help you get to sleep more comfortably.Should you favor a climate that's both dry and comfortably warm, January, February, March, April, May, November and December typically offer the most agreeable 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 Cabo Rojo's climate page.
Cabo Rojo Temperature in August
Min Temperature
26°C (79°F)
Max Temperature
31°C (88°F)
Chance of Rain
60%
Precipitation
79 mm (3.1 in)
Rainy days
18 days
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Cabo Rojo typically stay consistent throughout August, with daily highs averaging around 31°C (88°F). Nights are warm, with lows around 24°C (75°F).
Average temperatures in August
Historical weather for Cabo Rojo in August
Browse day-by-day weather records for Cabo Rojo spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Cabo Rojo historical weather extremes in August
Our historical data for Cabo Rojo spans 1997 to 2025, revealing these weather extremes.
- On August 17, 2007, temperatures climbed to 36°C (97°F), marking the warmest August day on record.
- The lowest daytime temperature in August was 27°C (81°F), recorded on August 24, 2012.
- Nighttime temperatures dropped to 20°C (68°F) on August 27, 2025, 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 →
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What to Wear in Cabo Rojo in August
Warm but pleasant conditions in Cabo Rojo 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. Wet weather is likely, so pack waterproof gear for multiple rainy days.What To Do in Cabo Rojo 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 Cabo Rojo's climate page.
See the full Cabo Rojo climate overview or explore weather in Puerto Rico.
