When to go · Mongar
Mongar in September
Avoid month. Listed as a month to avoid: Jun–Sep (monsoon), Dec–Feb (cold).
Key facts
- Verdict
- Avoid
- Temperature
- 25°C (77°F)77°F (25°C) / 18°C (64°F)64°F (18°C)
- average high / low
- Rain days
- 13
- Crowds
- Medium
- Bhutan overall
- Prices
- Medium
- Bhutan overall
Verdict
Listed as a month to avoid: Jun–Sep (monsoon), Dec–Feb (cold).
Is another month better than September?
September is rated avoid. These months rate higher:
Weather in September
- MongarHighs around 25 °C (77 °F), lows around 18 °C (64 °F), rain on about 13 daysHighs around 77 °F (25 °C), lows around 64 °F (18 °C), rain on about 13 days
Festivals and holidays
Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.
Thimphu Tshechu big impact
Sep–Oct (lunar, check 2026 dates) · Bhutan
Three days of dances at Tashichho Dzong; hotels and flights full.
Crowds and prices
- Crowds · Bhutan overall
- Medium
- Prices · Bhutan overall
- Medium
Bhutan overall: Rain eases late in the month; Thimphu Tshechu in some years.
Compare two months
Weather, crowds and prices for any two months in Mongar, side by side.
Verdict
Sep: Avoid
Mar: Great (better)
Daytime high
Sep: 25 °C (77 °F)77 °F (25 °C)
Mar: 19 °C (66 °F)66 °F (19 °C)
Night low
Sep: 18 °C (64 °F)64 °F (18 °C)
Mar: 9 °C (48 °F)48 °F (9 °C)
Rain days
Sep: 13
Mar: 5 (better)
Crowds
Sep: Medium
Mar: Medium
Prices
Sep: Medium
Mar: Medium
Festivals listed
Sep: 1
Mar: 1
September: Listed as a month to avoid: Jun–Sep (monsoon), Dec–Feb (cold).
March: Inside Mongar's best window: Mar–May, Oct–Nov.
Mongar: figures are long-term averages from this guide, not a forecast.
What to pack
- A rain jacket or umbrella and shoes that dry fast