When to go · Ton Sai
Ton Sai, month by month
The best months for Ton Sai: Jan, Feb, Nov, Dec. Months to avoid: May, Jun, Jul, Aug, Sep, Oct.
Month by month
- JanuaryGreatInside Ton Sai's best window: Nov–Feb (cool, dry, best climbing conditions).32 °C (90 °F) / 24 °C (75 °F), 5 rain days90 °F (32 °C) / 75 °F (24 °C), 5 rain daysCrowds: High
- FebruaryGreatInside Ton Sai's best window: Nov–Feb (cool, dry, best climbing conditions).33 °C (91 °F) / 25 °C (77 °F), 5 rain days91 °F (33 °C) / 77 °F (25 °C), 5 rain daysCrowds: High
- MarchMixedOutside the best window (Nov–Feb (cool, dry, best climbing conditions)). Across Thailand: Hot; northern burning season makes Chiang Mai air bad. Beaches both coasts are good.34 °C (93 °F) / 26 °C (79 °F), 6 rain days93 °F (34 °C) / 79 °F (26 °C), 6 rain daysCrowds: Medium
- AprilMixedOutside the best window (Nov–Feb (cool, dry, best climbing conditions)). Across Thailand: Hottest month; Songkran (13–15 Apr) soaks everyone and fills transport — plan around it or join in.34 °C (93 °F) / 27 °C (81 °F), 8 rain days93 °F (34 °C) / 81 °F (27 °C), 8 rain daysCrowds: High · 1 festival or holiday
- MayAvoidListed as a month to avoid: May–Oct (monsoon, heavy rain, limited climbing).33 °C (91 °F) / 27 °C (81 °F), 12 rain days91 °F (33 °C) / 81 °F (27 °C), 12 rain daysCrowds: Low
- JuneAvoidListed as a month to avoid: May–Oct (monsoon, heavy rain, limited climbing).32 °C (90 °F) / 27 °C (81 °F), 15 rain days90 °F (32 °C) / 81 °F (27 °C), 15 rain daysCrowds: Low
- JulyAvoidListed as a month to avoid: May–Oct (monsoon, heavy rain, limited climbing).31 °C (88 °F) / 27 °C (81 °F), 16 rain days88 °F (31 °C) / 81 °F (27 °C), 16 rain daysCrowds: Medium
- AugustAvoidListed as a month to avoid: May–Oct (monsoon, heavy rain, limited climbing).31 °C (88 °F) / 27 °C (81 °F), 16 rain days88 °F (31 °C) / 81 °F (27 °C), 16 rain daysCrowds: Medium
- SeptemberAvoidListed as a month to avoid: May–Oct (monsoon, heavy rain, limited climbing).31 °C (88 °F) / 27 °C (81 °F), 13 rain days88 °F (31 °C) / 81 °F (27 °C), 13 rain daysCrowds: Low
- OctoberAvoidListed as a month to avoid: May–Oct (monsoon, heavy rain, limited climbing).31 °C (88 °F) / 26 °C (79 °F), 9 rain days88 °F (31 °C) / 79 °F (26 °C), 9 rain daysCrowds: Low
- NovemberGreatInside Ton Sai's best window: Nov–Feb (cool, dry, best climbing conditions).31 °C (88 °F) / 25 °C (77 °F), 6 rain days88 °F (31 °C) / 77 °F (25 °C), 6 rain daysCrowds: Medium
- DecemberGreatInside Ton Sai's best window: Nov–Feb (cool, dry, best climbing conditions).32 °C (90 °F) / 24 °C (75 °F), 5 rain days90 °F (32 °C) / 75 °F (24 °C), 5 rain daysCrowds: High
Compare two months
Weather, crowds and prices for any two months in Ton Sai, side by side.
Verdict
Jan: Great
Feb: Great
Daytime high
Jan: 32 °C (90 °F)90 °F (32 °C)
Feb: 33 °C (91 °F)91 °F (33 °C)
Night low
Jan: 24 °C (75 °F)75 °F (24 °C)
Feb: 25 °C (77 °F)77 °F (25 °C)
Rain days
Jan: 5
Feb: 5
Crowds
Jan: High
Feb: High
Prices
Jan: High
Feb: High
Festivals listed
Jan: 0
Feb: 0
January: Inside Ton Sai's best window: Nov–Feb (cool, dry, best climbing conditions).
February: Inside Ton Sai's best window: Nov–Feb (cool, dry, best climbing conditions).
Ton Sai: figures are long-term averages from this guide, not a forecast.