Mandalay weather in September

September in Mandalay: sweltering, rainy, with clean air — a gamble, with 18 rainy days.

Updated September 2026 · climate normals from ERA5 reanalysis

Mandalay🇲🇲 Myanmar · Myanmar · City60
  1. 90Jan
  2. 85Feb
  3. 72Mar
  4. 51Apr
  5. 50May
  6. 62Jun
  7. 57Jul
  8. 55Aug
  9. 60Sep
  10. 63Oct
  11. 77Nov
  12. 87Dec

#8 of 12 months in Mandalay · #1139 of 1413 destinations to visit in September · comfort 60/100 (tier C)

Days
31°C
Nights
25°C
Wet days
18
Sun
9.1 h
Humidity
82%
Daylight
12 h
Mandalay, Myanmar
Photo: Tony Wu · Pexels

Traveller notes on Mandalay in September

Notes from nearby Hsipaw (144 km away)

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

Hsipaw-forum threads on Myanmar's September pattern describe mornings as the reliable window, posters reporting rain typically starting mid-to-late afternoon and stopping again late at night, leaving early activities largely untouched. Regulars call trekking around Hsipaw capable of turning muddy this month, real caution warranted on routes affected by the wider monsoon pattern running through Shan State. Posters recommend the train ride from Mandalay via the Gokteik Viaduct as a genuine highlight regardless of trekking plans, scenery worthwhile even without a hike attached. Regulars call weather here unpredictable day to day in September, several describing conditions as hard to forecast more than a day out. Posters recommend real waterproof layers and flexible plans, building activities around the more reliable morning window rather than the afternoon. The record: 30.2C days feeling like 36C, 22.5C nights, an extraordinarily high 156mm across nearly 23 days and 79 percent humidity.
HsipawSeptemberRegular · September · 1 month ago · about Hsipaw · Read more on Tripadvisor ↗

Other months in Mandalay

Forum posters consistently name Mandalay, alongside Bagan, as sitting within Myanmar's dry zone, meaning it sees meaningfully less monsoon rain in July than the country's coastal regions, which posters describe as getting properly inundated this time of year. Posters describe a typical Mandalay July day as sunny or partly cloudy with at most a short evening shower, rather than sustained rain, and note real money-saving upside since July falls in the low season with noticeably lower prices. Posters generally rate July as good weather for Mandalay specifically, cooler and greener than the hotter March-April stretch, with plenty of clear-sky days even though some rain remains part of the deal. Posters generally rate July as a solid, budget-friendly time to visit Mandalay, one of the better regional choices within Myanmar for a monsoon-season trip.
Tripadvisor community · July · 1 month ago · Read more on Tripadvisor ↗
Forum posters name October through January as Myanmar's winter season and January specifically as ideal - dry, not too hot or humid, with the bonus of cheaper hotels and thinner crowds at popular sites. Posters describe typical daytime temperatures around 25C with cooler evenings and genuinely cool early mornings, and note December and January are Mandalay's coldest months of the year even though it never gets properly cold in the city itself. Posters flag Inle Lake and its surrounding area as running noticeably colder in the mornings than Mandalay, Yangon or Bagan at the same time of year - a useful distinction for anyone combining multiple stops on a January Myanmar trip.
Tripadvisor community · January · 1 month ago · Read more on Tripadvisor ↗

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

Mandalay climate normals — September

Daytime high31°C / 88°F🔥 sweltering
Nighttime low25°C / 77°F
Feels like (high)37°C / 99°F
Rainfall139 mm / 5.5 in🌧 rainy
Rainy days18 days
Humidity82%💦 very humid
Dew point24°C / 76°F
Sunshine9.1 h/day
Daylight12.3 h
Wind12 km/h / 8 mph
Air quality (US AQI)48🍃 good

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

Crowds in Mandalay 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)

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Peak crowdsBusyShoulder seasonQuiet

Best months for Mandalay'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 weatherMandalay's weather peaks December–February, best around January.

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Best weatherFair weatherToughest weather

Nearby, and something's on

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

Where is Mandalay?

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Mandalay in September — FAQ

Is September a good time to visit Mandalay?
September in Mandalay: sweltering, rainy, with clean air — a gamble, with 18 rainy days. It ranks #8 of 12 months for Mandalay on SeasonMap's comfort score (60/100).
What is the weather like in Mandalay in September?
In September, Mandalay averages a daily high of 30.9°C and a low of 25.2°C, with about 139.2 mm of rain over roughly 18.4 rainy days.
What is the air quality in Mandalay in September?
Mandalay has a mean US Air Quality Index of about 48 in September.

Within 300 km: Bagan's Southwest monsoon around 20 May – 10 Oct.