Guanica Weather in May
With daytime temperatures of 29°C (84°F) and nighttime lows of 24°C (75°F), May in Guanica brings high temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 92 mm (3.6 in) falls on average.
Rainfall in Guanica in May
Historically, the month has about 15 days of rain, averaging 92 mm (3.6 in) in total. A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.
Temperature in Guanica in May
May is a good time to be in Guanica. Days are perfect, reaching 29°C (84°F), with nights around 24°C (75°F). This kind of day-to-night contrast is typical for this time of year. Nights stay warm at around 24°C (75°F), so light bedding and good ventilation are worth thinking about.Our weather planner can help you find worldwide destinations with pleasant weather during this period. January, February, March, April, May, November and December typically offer the best weather for Guanica.
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 Guanica's climate page.
Guanica Temperature in May
Min Temperature
24°C (75°F)
Max Temperature
29°C (84°F)
Chance of Rain
49%
Precipitation
92 mm (3.6 in)
Rainy days
15 days
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Guanica typically stay consistent throughout May, with daily highs averaging around 29°C (84°F). Nights are warm, with lows around 23°C (73°F).
Average temperatures in May
Historical weather for Guanica in May
Browse day-by-day weather records for Guanica spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Guanica historical weather extremes in May
Based on 47 years of weather observations (1979-2026), these are the most extreme conditions recorded in Guanica.
- The hottest May day on record in Guanica reached 37°C (99°F) (May 18, 1997).
- The coldest May day was on May 20, 1979, with a maximum of 23°C (73°F).
- The lowest overnight temperature recorded in May was 19°C (66°F) (May 9, 1989).
Best Places in Puerto Rico in May
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 May →
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What to Wear in Guanica in May
Warm but pleasant conditions in Guanica in May. 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 Guanica in May
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 Guanica's climate page.
See the full Guanica climate overview or explore weather in Puerto Rico.
