Log visit
Sri Lanka
Galle weather by month
Historical averages 2016–2025 · not a forecast
Loading your weather period…
When is the best time to visit Galle?
For a warm holiday, the best week has been 18–24 July (Weather Index 78). Several start dates remain plausible, and the best timing varies between years. February, March and April are warmest (31°C), February is driest and February to April and June have the most sun.
- Warmest
- February, March and April 31°C
- Coolest
- July to October 29°C
- Driest
- February 49% rain-day chance
- Wettest
- May and June 98% rain-day chance
- Sunniest
- February to April and June 11 hours a day
A rain day has 1 mm or more, snow included, so a short shower counts. Monthly averages below give the amounts.
Monthly averages in Galle
Galle historical monthly estimates, 2016–2025. Temperatures and sunshine are daily averages.
| Month | High (°C) | Low (°C) | Rain-day chance (%) | Expected rain days | Precipitation (mm/month) | Sunshine (hours/day) |
|---|---|---|---|---|---|---|
| January | 29.9 | 23.6 | 53.9 | 16.7 | 148.8 | 10.3 |
| February | 30.9 | 24.0 | 48.6 | 13.6 | 91.7 | 11.1 |
| March | 31.5 | 24.7 | 66.8 | 20.7 | 127.3 | 10.9 |
| April | 31.3 | 25.3 | 90.0 | 27.0 | 201.3 | 10.7 |
| May | 30.2 | 25.8 | 97.7 | 30.3 | 378.8 | 9.4 |
| June | 29.6 | 25.8 | 98.3 | 29.5 | 239.7 | 10.7 |
| July | 29.3 | 25.6 | 90.6 | 28.1 | 205.1 | 10.4 |
| August | 29.1 | 25.3 | 91.3 | 28.3 | 215.6 | 10.4 |
| September | 29.1 | 25.1 | 92.7 | 27.8 | 250.7 | 9.8 |
| October | 29.2 | 24.7 | 91.3 | 28.3 | 301.7 | 9.2 |
| November | 29.5 | 24.3 | 86.7 | 26.0 | 353.5 | 8.5 |
| December | 29.7 | 24.0 | 69.4 | 21.5 | 185.9 | 9.7 |
Each month averages its own days. Precipitation includes snow. About the data
Sources
Open-Meteo · 1 Jan 2016 – 31 Dec 2025
- Open-Meteo Historical Weather API
- Local days, 2016–2025, every year weighted equally. Each weekly chart averages its own seven days, without smoothing.
- Shading shows the 10th–90th percentile of past days, not forecast confidence.
- A rain day has at least 1 mm, snow included. The last weekly period has eight days.
- Wind is the average daytime (10:00–18:00) maximum, not gusts. Daylight is calculated from latitude. Missing readings stay blank.
- Mugginess (dew point) comes from the original daily summaries, on UTC days.
- The live two-week forecast comes from the Open-Meteo Weather Forecast API. The Weather Index does not use it.