The short answer
When to go to Kanchanaburi
November to February is the best time, when the rains have ended, days are warm rather than fierce, and the waterfalls and river still look good. March to May is very hot, with afternoon highs in the high 30s, and is hard going at open sites such as the bridge and Hellfire Pass. September and October are the wettest months, when trails, rivers and roads need care. Older travellers should avoid April, and in any season start early and rest in the afternoon.
Month by month
Kanchanaburi weather by month
| Month | High | Low | Rain | Verdict | What to expect |
|---|---|---|---|---|---|
| January | 33°C | 20°C | 8 mm | Dry, sunny, coolest nights; ideal for sightseeing | |
| February | 35°C | 22°C | 18 mm | Dry but warming; waterfalls still flowing | |
| March | 37°C | 24°C | 39 mm | Hot afternoons; keep outdoor sights for the morning | |
| April | 38°C | 26°C | 66 mm | Hottest month; hard going for older travellers | |
| May | 36°C | 26°C | 139 mm | Hot and humid as the rains begin | |
| June | 35°C | 25°C | 99 mm | Showers and humidity; fewer crowds | |
| July | 34°C | 25°C | 106 mm | Rainy but lush; falls at full volume | |
| August | 34°C | 25°C | 101 mm | Wet season; plan around downpours | |
| September | 34°C | 25°C | 219 mm | Among the wettest months; trails and river can be unsafe | |
| October | 32°C | 24°C | 206 mm | Heavy rain tails off late in the month | |
| November | 32°C | 22°C | 45 mm | Rain ends, air clears, comfortable days | |
| December | 32°C | 20°C | 7 mm | Coolest and driest; the busiest, best season |
Temperatures and rainfall are long-term monthly averages. Check the forecast a few days before you travel.
Seasons at a glance
Kanchanaburi seasons for families and seniors
The easiest months: January, November and December
- January: Dry, sunny, coolest nights; ideal for sightseeing
- November: Rain ends, air clears, comfortable days
- December: Coolest and driest; the busiest, best season
Good, with small trade-offs: February
- February: Dry but warming; waterfalls still flowing
Possible, with planning: March, June, July and August
- March: Hot afternoons; keep outdoor sights for the morning
- June: Showers and humidity; fewer crowds
- July: Rainy but lush; falls at full volume
- August: Wet season; plan around downpours
Best avoided with parents or children: April, May, September and October
- April: Hottest month; hard going for older travellers
- May: Hot and humid as the rains begin
- September: Among the wettest months; trails and river can be unsafe
- October: Heavy rain tails off late in the month
Useful answers
Best time to visit Kanchanaburi: FAQs
What is the best month to visit Kanchanaburi?
January, November and December are the best months to visit Kanchanaburi, with February also good. November to February is the best time, when the rains have ended, days are warm rather than fierce, and the waterfalls and river still look good. March to May is very hot, with afternoon highs in the high 30s, and is hard going at open sites such as the bridge and Hellfire Pass. September and October are the wettest months, when trails, rivers and roads need care. Older travellers should avoid April, and in any season start early and rest in the afternoon.
Which months should I avoid in Kanchanaburi with elderly parents?
April, May, September and October are the months to avoid with older travellers. Hottest month; hard going for older travellers Hot and humid as the rains begin
When does it rain most in Kanchanaburi?
September is the wettest month, with about 219 mm of rain on average. The hottest month is April, with average highs around 38°C.