Isla Grande Weather in May
May in Isla Grande typically sees daytime highs of 29°C (84°F) and nighttime lows of 25°C (77°F). May falls within the rainy season, so heavy rainfall is to be expected.
Rainfall in Isla Grande in May
As part of the rainy season, Isla Grande sees around 18 days of rain in May, with an average of 256 mm (10 in). Rainfall this month is frequent and tends to be fairly heavy when it does fall. Packing waterproofs is a good idea.
Temperature in Isla Grande in May
May in Isla Grande brings high temperatures, with highs of 29°C (84°F) and nights around 25°C (77°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. Nights are warm at 25°C (77°F). It's worth making sure your accommodation has decent ventilation or air conditioning.
Sunshine in Isla Grande in May
The month experiences a moderate amount of sunlight, with 129 hours of sunshine. This provides a nice balance between sunshine and rain.Should you favor a climate that's both dry and comfortably warm, February and March 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 Panama, check out our Isla Grande's climate page.
Isla Grande Temperature in May
Min Temperature
25°C (77°F)
Max Temperature
29°C (84°F)
Chance of Rain
61%
Precipitation
256 mm (10 in)
Rainy days
18 days
Humidity
78% *
Sunshine
129 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Isla Grande typically stay consistent throughout May, with daily highs averaging around 29°C (84°F). Nights are warm, with lows around 24°C (75°F).
Average temperatures in May
Historical weather for Isla Grande in May
Browse day-by-day weather records for Isla Grande spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Isla Grande historical weather extremes in May
Our historical data for Isla Grande spans 1976 to 2026, revealing these weather extremes.
- The warmest day in May was on May 11, 2011, with a maximum of 37°C (99°F).
- Isla Grande experienced its chilliest May day on May 24, 2001, reaching only 25°C (77°F).
- The coldest night in May in Isla Grande was on May 14, 2020, with a minimum of 17°C (63°F).
Best Places in Panama in May
Find out more about the weather in Panama and which places have the best travel conditions in this month. See all of Panama in May →
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What to Wear in Isla Grande in May
Warm but pleasant conditions in Isla Grande 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. It's going to pour! Pack a good poncho and prepare for very wet conditions. Sunglasses could come in handy during the sunnier parts of your trip.What To Do in Isla Grande 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 Panama, check out our Isla Grande's climate page.
Temperature Rainfall Sunshine Humidity
See the full Isla Grande climate overview or explore weather in Panama.
