Galle weather in May
May in Galle: hot, soaked, with clean air — fine if you can take 30 rainy days.
#9 of 12 months in Galle · #727 of 897 destinations to visit in May · comfort 69/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Galle in May
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Galle climate normals — May
| Daytime high | 29°C / 84°F | 🥵 hot |
|---|---|---|
| Nighttime low | 26°C / 78°F | |
| Rainfall | 321 mm / 12.7 in | ⛈ soaked |
| Rainy days | 30 days | |
| Humidity | 86% | 💦 very humid |
| Dew point | 25°C / 76°F | |
| Sunshine | 9.6 h/day | |
| Daylight | 12.4 h | |
| Wind | 18 km/h / 11 mph | |
| Air quality (US AQI) | 43 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Galle in May — FAQ
- Is May a good time to visit Galle?
- May in Galle: hot, soaked, with clean air — fine if you can take 30 rainy days. It ranks #9 of 12 months for Galle on SeasonMap's comfort score (69/100).
- What is the weather like in Galle in May?
- In May, Galle averages a daily high of 29°C and a low of 25.8°C, with about 321.4 mm of rain over roughly 29.8 rainy days.
- What is the air quality in Galle in May?
- Galle has a mean US Air Quality Index of about 43 in May.