SeasonMapMussoorie weather in September
India
September in Mussoorie: nice, soaked, with muggy air — fine if you can take 26 rainy days.
#7 of 12 months in Mussoorie · #802 of 1383 destinations to visit in September · comfort 77/100 (tier B)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Mussoorie in September
Other months in Mussoorie
April is peak season in Mussoorie — the forum calls late March and April ideal, and busy with it — because the hill station is the escape from a plains April that is already punishing. Figures vary a lot depending on who is quoting them: posters commonly give 30°C days and 18–22°C nights, while the monthly record for the hill station is cooler, nearer 22°C and 8°C. That is the sort of gap you get between a ridge town and the valley below it, and it is worth knowing both numbers exist. Either way, an evening at 2,000m wants a proper layer in a month India thinks of as hot. Rain is not negligible either, around twelve days. Regulars are candid that hill weather is unpredictable — mostly sunny and pleasant, but not something to rely on.
Add your own note from Mussoorie's card on the map.
Mussoorie climate normals — September
| Daytime high | 22°C / 72°F | 😎 nice |
|---|---|---|
| Nighttime low | 15°C / 60°F | |
| Rainfall | 171 mm / 6.7 in | ⛈ soaked |
| Rainy days | 26 days | |
| Humidity | 85% | 💦 very humid |
| Dew point | 16°C / 61°F | |
| Sunshine | 9.5 h/day | |
| Daylight | 12.3 h | |
| Wind | 7 km/h / 4 mph | |
| Air quality (US AQI) | 73 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Mussoorie in September
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Shoulder seasonschool holidays in 3 of the markets that fill it, an ordinary month(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Mussoorie's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherMussoorie's best weather comes in April, May and October — separate windows, not one continuous season.
Best weatherFair weatherToughest weather
What's on in Mussoorie in September
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Closure
Landslides on the Dehradun road
1 Jul – 15 Sep · usuallyRiskThe road up loses sections in the heaviest weeks and the slopes above Kempty come down with them. Hotels are at their cheapest, the leeches are out, and the Doon valley below is under cloud for days at a time. Source ↗
- Season
Autumn clear window
20 Sep – 15 NovDry seasonThe rain stops and the haze goes with it, which is when the snow peaks north of the ridge finally show themselves. Far fewer people than the summer, until the Diwali long weekend fills the town again.
Nearby, and something's on
Within 300 km of Mussoorie — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Mussoorie?
Mussoorie in September — FAQ
- Is September a good time to visit Mussoorie?
- September in Mussoorie: nice, soaked, with muggy air — fine if you can take 26 rainy days. It ranks #7 of 12 months for Mussoorie on SeasonMap's comfort score (77/100).
- What is the weather like in Mussoorie in September?
- In September, Mussoorie averages a daily high of 22.3°C and a low of 15.3°C, with about 171.3 mm of rain over roughly 25.6 rainy days.
- What is the air quality in Mussoorie in September?
- Mussoorie has a mean US Air Quality Index of about 73 in September.
Other months in Mussoorie
Compare Mussoorie in September
Warmer or cooler than Mussoorie in September
Similar destinations in South Asia — September
Within 300 km: Rishikesh's Rafting and camp season reopens around 15 Sep – 30 Jun, and Kasol's Clear season after the rain on 15 Sep – 15 Nov.