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Best Time for the Mae Hong Son Loop
Sweet spot: January, February, March — computed from NASA POWER climate normals across the route's overnight towns, balancing temperature, rainfall and daylight.
Cool season: clear ridgelines, morning mist seas at Ban Jabo, and Pai's high season buzz — 1,864 curves at their best.
Burning season smoke chokes the valleys — views vanish and air quality gets rough; wait for the rains to clear it.
| Month | Temp | Rain | Daylight | |
|---|---|---|---|---|
| January | 5.7–32.8°C | 14 mm | 11.0 h | |
| February | 7.7–35.0°C | 4 mm | 11.4 h | |
| March | 9.7–37.1°C | 22 mm | 11.9 h | |
| April | 14.0–40.1°C | 58 mm | 12.4 h | |
| May | 16.5–39.7°C | 185 mm | 12.9 h | |
| June | 18.3–36.0°C | 156 mm | 13.1 h | |
| July | 18.4–34.2°C | 192 mm | 13.0 h | |
| August | 18.2–32.6°C | 239 mm | 12.6 h | |
| September | 17.3–32.0°C | 216 mm | 12.1 h | |
| October | 12.2–31.3°C | 127 mm | 11.6 h | |
| November | 7.2–31.7°C | 34 mm | 11.1 h | |
| December | 4.3–30.0°C | 12 mm | 10.9 h |