Munnar weather in August
August in Munnar: warm, soaked, with clean air — a gamble, with 27 rainy days.
Updated September 2026 · climate normals from ERA5 reanalysis
#9 of 12 months in Munnar · #1085 of 1413 destinations to visit in August · comfort 60/100 (tier C)
- Days
- 22°C
- Nights
- 17°C
- Wet days
- 27
- Sun
- 7.3 h
- Humidity
- 92%
- Daylight
- 12 h
Traveller notes on Munnar in August
Forum posters describe August as peak monsoon in Munnar, with cool, pleasant temperatures generally in the high-teens to low-20sC and heavy, frequent rainfall, though posters are consistent that it isn't a continuous downpour - proper planning still allows for outings between showers. Posters flag real logistical risks specific to this hill-station setting: landslides and roadblocks are a genuine possibility, hill roads get slippery, and driving is best kept to daylight hours only. On the upside, posters describe Munnar at its greenest and mistiest in August, with waterfalls running at full flow, noticeably thinner crowds, and better hotel rates than the peak season. Posters generally rate August as wet and logistically more demanding but visually the most dramatic time to see Munnar, workable for travelers prepared for the monsoon.
Other months in Munnar
Forum posters describe February as sitting near the tail end of Munnar's Nov-Feb cool season - daytime is warm and pleasant but far from hot, while evenings turn genuinely cold once the sun goes down, with old Munnar and Devikulam specifically named as the coolest spots in the area. Posters consistently call December-through-February the peak, most pleasant season here, with minimal rain and lush, evergreen tea-plantation scenery as the payoff. The standard packing advice given the day-to-night swing is to bring warm layers regardless of how mild the daytime forecast looks, since evening and early-morning cold can catch visitors off guard.
Add your own note from Munnar's card on the map.
Munnar climate normals — August
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Munnar in August
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.
Peak crowdstravelers describe it as peak season, Onam, school holidays in 4 of the markets that fill it
Sourced from traveler notes: “…noticeably thinner crowds, and better hotel rates than the peak season. Posters generally rate August as wet and logistically more…” — Tripadvisor community
Peak crowdsBusyShoulder seasonQuiet
Best months for Munnar'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 weatherMunnar's weather peaks January–March, best around February.
Best weatherFair weatherToughest weather
What's on in Munnar in August
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Closure
Ghat road landslides
1 Jun – 31 Aug · usuallyRiskIdukki takes the full south-west monsoon and the ghat roads up from Kochi lose sections most seasons. The estates keep working and the hotels are at their cheapest; the drive is the part that is not guaranteed. Source ↗
- Holiday
Onam
15 Aug – 20 Sep · usuallyNational holidayCrowdedClosuresKerala's own harvest festival closes the state for several days and fills the hill resorts with Malayali families. Sadya is served everywhere and finding a car and driver is the thing that will catch you out. Source ↗
- Season
Wet season
MonsoonRisk27 rainy days and about 431 mm in the month — the real kind of rainy season, not afternoon showers.
from the climate normals
Nearby, and something's on
Within 300 km of Munnar — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Munnar?
Munnar in August — FAQ
- Is August a good time to visit Munnar?
- August in Munnar: warm, soaked, with clean air — a gamble, with 27 rainy days. It ranks #9 of 12 months for Munnar on SeasonMap's comfort score (60/100).
- What is the weather like in Munnar in August?
- In August, Munnar averages a daily high of 22.4°C and a low of 17.4°C, with about 431.2 mm of rain over roughly 27.3 rainy days.
- What is the air quality in Munnar in August?
- Munnar has a mean US Air Quality Index of about 29 in August.
Within 300 km: Alleppey's Nehru Trophy Boat Race around 5–31 Aug, and Kochi's Onam on 17–26 Aug.