Mayaguez Weather in August
August in Mayaguez typically sees daytime highs of 31°C (88°F) and nighttime lows of 26°C (79°F). Rainfall is also possible this month, so it's worth packing an umbrella.
Rainfall in Mayaguez in August
Typically, you can expect about 18 days of rain this month, with 88 mm (3.5 in) on average. Rain is frequent but mostly light this month, with brief showers more common than heavy downpours.
Temperature in Mayaguez in August
In August, expect very high temperatures in Mayaguez, with highs of 31°C (88°F) and lows of 26°C (79°F) at night. If you're spending a lot of time outdoors, it helps to plan around the warmer part of the day. Nights are warm at 26°C (79°F). It's worth making sure your accommodation has decent ventilation or air conditioning.Should you favor a climate that's both dry and comfortably warm, January, February, March, April, 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 Mayaguez's climate page.
Mayaguez Temperature in August
Min Temperature
26°C (79°F)
Max Temperature
31°C (88°F)
Chance of Rain
61%
Precipitation
88 mm (3.5 in)
Rainy days
18 days
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Mayaguez 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 Mayaguez in August
Browse day-by-day weather records for Mayaguez spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Mayaguez historical weather extremes in August
Our historical data for Mayaguez 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.
- On August 24, 2012, Mayaguez saw its coldest August day with temperatures maxing out at 27°C (81°F).
- Mayaguez registered its coldest August night on August 27, 2025, with temperatures dropping to 20°C (68°F).
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 Mayaguez in August
Warm but pleasant conditions in Mayaguez 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. Expect heavy rainfall, so bring good rain protection and waterproof bags.What To Do in Mayaguez 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 Mayaguez's climate page.
See the full Mayaguez climate overview or explore weather in Puerto Rico.
