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Khlong Sam Wa weather by month
Historical averages 2016–2025 · not a forecast
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When is the best time to visit Khlong Sam Wa?
For a warm holiday, the best week has been 27 December – 2 January (Weather Index 90). Favourable start dates for a 7-day trip run from 15 December to 31 December. April is warmest (35°C), December is driest and February, March and April have the most sun.
- Warmest
- April 35°C
- Coolest
- December 31°C
- Driest
- December 8% rain-day chance
- Wettest
- September 88% rain-day chance
- Sunniest
- February, March and April 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 Khlong Sam Wa
Khlong Sam Wa 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 | 31.6 | 22.4 | 11.6 | 3.6 | 23.4 | 10.4 |
| February | 32.6 | 23.9 | 17.9 | 5.0 | 24.9 | 10.7 |
| March | 33.8 | 26.3 | 25.2 | 7.8 | 43.4 | 10.9 |
| April | 34.7 | 27.4 | 34.3 | 10.3 | 77.5 | 11.1 |
| May | 34.2 | 27.5 | 68.1 | 21.1 | 153.8 | 10.2 |
| June | 33.6 | 27.4 | 69.3 | 20.8 | 120.1 | 9.8 |
| July | 32.8 | 26.9 | 84.5 | 26.2 | 180.7 | 8.6 |
| August | 33.0 | 26.8 | 77.4 | 24.0 | 153.1 | 8.7 |
| September | 32.4 | 26.3 | 88.0 | 26.4 | 269.7 | 8.3 |
| October | 32.3 | 25.8 | 65.8 | 20.4 | 193.2 | 9.3 |
| November | 32.1 | 24.6 | 30.3 | 9.1 | 62.8 | 9.7 |
| December | 31.4 | 22.6 | 7.7 | 2.4 | 16.6 | 10.1 |
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.