Nainital weather in September

September in Nainital: warm, soaked, with muggy air — fine if you can take 25 rainy days.

Updated September 2026 · climate normals from ERA5 reanalysis

Nainital🇮🇳 India · Himalaya · City69
  1. 71Jan
  2. 78Feb
  3. 87Mar
  4. 93Apr
  5. 87May
  6. 74Jun
  7. 61Jul
  8. 60Aug
  9. 69Sep
  10. 85Oct
  11. 84Nov
  12. 77Dec

#10 of 12 months in Nainital · #969 of 1413 destinations to visit in September · comfort 69/100 (tier C)

Days
23°C
Nights
15°C
Wet days
25
Sun
9.6 h
Humidity
87%
Daylight
12 h
Nainital, India
Photo: Lokesh Kumar · Pexels

Traveller notes on Nainital in September

Notes from nearby Auli (126 km away)

Nainital doesn't have its own notes for September yet — these are about Auli, close enough to share the season.

Auli-forum threads on a September visit describe the first week as capable of staying cloudy with occasional showers, posters calling conditions typically clearing later in the month with cooler nights. Regulars call Auli fundamentally a winter destination, real skiing here running December through March and effectively absent the rest of the year. Posters call the surrounding oak and coniferous forest worth the trip regardless of season, Nanda Devi and Nar Parvat both visible on a clear day. Regulars recommend real warm layers for September evenings despite comfortable daytime conditions, elevation here delivering a genuine chill after dark. Posters call the cable car ride up a real highlight, considered among the longest and highest in Asia. Regulars recommend checking current weather before finalizing a trip, visibility varying day to day. The record: 16C days feeling like 16C, 9.1C nights, an extraordinarily high 245.9mm across over 23 days and 84 percent humidity.
AuliSeptemberRegular · September · 1 month ago · about Auli · Read more on Tripadvisor ↗

Other months in Nainital

Forum posters consistently rate October as a good time to visit Nainital, citing typical temperatures around 10-16C, pleasant conditions through the day and a bit chilly after sunset, with no chance of snowfall this early in the season. Posters describe rainfall as minimal this time of year, with mornings and evenings both cool and comfortable. Posters do flag crowding as the main drawback, particularly around long weekends when the hill station can get genuinely overcrowded with domestic tourists. Posters generally rate October as one of the better months to visit Nainital, pleasant, low-rain conditions offset only by potential crowds on peak weekends.
Tripadvisor community · October · 1 month ago · Read more on Tripadvisor ↗
Forum posters describe April daytimes as pleasant, with forecasts commonly citing highs around 29C and lows around 15C, though mornings and evenings run genuinely chilly enough that a jacket or woolen layer is standard advice. Posters note the lake itself remains enjoyable through mid-April without any issue, though some posters raised questions about water levels dropping later in the month. Posters do flag that temperatures climb further as April progresses, with late-April conditions noticeably warmer than early-month, and note that hazy conditions can sometimes limit clear Himalayan views from the ropeway this time of year. Posters generally recommend earlier April over the tail end of the month for the most comfortable combination of pleasant days and still-cool evenings.
Tripadvisor community · April · 1 month ago · Read more on Tripadvisor ↗

Add your own note from Nainital's card on the map.

Nainital climate normals — September

Daytime high23°C / 73°F🌤 warm
Nighttime low15°C / 59°F
Feels like (high)25°C / 77°F
Rainfall278 mm / 11 in⛈ soaked
Rainy days25 days
Humidity87%💦 very humid
Dew point16°C / 60°F
Sunshine9.6 h/day
Daylight12.3 h
Wind7 km/h / 4 mph
Air quality (US AQI)65🙂 moderate

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Nainital 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.

Quietschool holidays in 3 of the markets that fill it, one of its worst months for weather(estimated)

JFMAMJJASOND

Peak crowdsBusyShoulder seasonQuiet

Best months for Nainital'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).

Toughest weatherNainital's weather peaks March–May, best around April.

September coincides with Landslides on the hill roads.

JFMAMJJASOND

Best weatherFair weatherToughest weather

What's on in Nainital in September

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Closure

    Landslides on the hill roads

    1 Jul – 15 Sep · usuallyRisk

    The roads up from Haldwani and Kaladhungi lose sections in the worst weeks, and the slope above the lake has a long history of coming down. The town is green, cheap and half empty in exchange. Source ↗

  • Season

    Autumn clear window

    25 Sep – 15 NovDry season

    The clearest weeks of the year: from Tiffin Top and Naina Peak the high Himalaya stand out on the horizon, which they do not do through the summer haze. Quiet until the Diwali long weekend.

  • Season

    Wet season

    MonsoonRisk

    25 rainy days and about 278 mm in the month — the real kind of rainy season, not afternoon showers.

    from the climate normals

What's on around the world in September →

Nearby, and something's on

Within 300 km of Nainital — a day trip or a short hop — with something on this month. Never part of the comfort score.

Where is Nainital?

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Nainital in September — FAQ

Is September a good time to visit Nainital?
September in Nainital: warm, soaked, with muggy air — fine if you can take 25 rainy days. It ranks #10 of 12 months for Nainital on SeasonMap's comfort score (69/100).
What is the weather like in Nainital in September?
In September, Nainital averages a daily high of 22.7°C and a low of 15.1°C, with about 278.4 mm of rain over roughly 25.2 rainy days.
What is the air quality in Nainital in September?
Nainital has a mean US Air Quality Index of about 65 in September.

Within 300 km: Rishikesh's Rafting and camp season reopens around 15 Sep – 30 Jun, and Agra's Taj night viewing on 1 Jan – 31 Dec.