Bandar Seri Begawan weather by month

The best time to visit Bandar Seri Begawan is February, March and July — 64/100 in February, 31°C and 21 rainy days. The best season is the dry season, June to September (57/100 on average).

The worst month is December at 51/100 — sweltering, soaked, clean air. See December →

Updated September 2026 · climate normals from ERA5 reanalysis

Bandar Seri Begawan🇧🇳 Brunei · Malaysia, Singapore & Sumatra · City64
  1. 56Jan
  2. 64Feb
  3. 58Mar
  4. 58Apr
  5. 54May
  6. 57Jun
  7. 59Jul
  8. 57Aug
  9. 56Sep
  10. 51Oct
  11. 52Nov
  12. 51Dec

Best season: June to September (57/100 on average) · worst December (51/100)

Days
31°C
Nights
24°C
Wet days
21
Sun
9.4 h
Humidity
86%
Daylight
12 h
Bandar Seri Begawan, Brunei
Photo: vitalina · Pexels

Bandar Seri Begawan, month by month

Comfort score out of 100 for the kind of trip Bandar Seri Begawan is best for, the average high, rainy days and hours of sun a day from the climate normals, and how busy it tends to be.

MonthScoreTierHighRainSunCrowdsOn
Jan56D32°C26 d9 hShoulder1
Feb64C31°C21 d9 hBusy2
Mar58D32°C24 d10 hBusy2
Apr58D33°C25 d10 hPeak2
May54D33°C25 d9 hBusy1
Jun57D33°C21 d9 hBusy1
Jul59D33°C21 d9 hBusy2
Aug57D33°C23 d9 hShoulder2
Sep56D33°C23 d9 hShoulder2
Oct51D32°C26 d9 hQuiet1
Nov52D32°C27 d9 hQuiet—
Dec51D32°C27 d9 hQuiet1

What's on in Bandar Seri Begawan through the year

Festivals, natural spectacles, holidays and the seasons to watch out for — curated and sourced. The month pages carry the detail.

February
  • National Day23 FebHoliday
  • Ramadan: no eating in public5 Feb – 25 Mar (usually)Rule
March
  • Hari Raya and the palace open house1 Mar – 10 Apr (usually)Holiday
April
  • Hari Raya Aidiladha20 Apr – 10 Jun (usually)Holiday
July
  • Maulidur Rasul procession20 Jul – 15 Sep (usually)Festival
  • Sultan's birthday15 JulHoliday
August
  • Borneo haze season1 Aug – 31 Oct (usually)Hazard
December
  • Brunei December Festival22 Dec – 1 Jan (usually)Festival

Everything on in Bandar Seri Begawan through the year →

Crowds in Bandar Seri Begawan in February

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.

BusyNational Day, school holidays in 2 of the markets that fill it(estimated)

JFMAMJJASOND

Peak crowdsBusyShoulder seasonQuiet

Good to know before you go to Bandar Seri Begawan

Real experiences from travellers' own write-ups, quoted with a link to the original.

Customs & etiquette

A family travel guide to Bandar Seri Begawan is direct about two practical realities: Brunei is a dry country, so alcohol simply isn't sold anywhere, and public buses stop running around 6pm, after which taxis become genuinely hard to find on short notice. Their dress-code note for mosque visits, including the Sultan Omar Ali Saifuddien Mosque: men need long trousers with short sleeves acceptable, while women are expected to cover hair and arms with an ankle-length skirt or pants.
Where's Sharon · Read the original ↗

Traveller notes on Bandar Seri Begawan

What people who have been say about the place — the year-round notes first, then month by month.

Forum posters describe Bandar Seri Begawan's climate in blunt terms - hot and humid enough that visitors should expect to sweat, with conditions described elsewhere by posters as hot and humid interspersed by short showers. Posters specifically raised the question of whether February brings sustained heavy rain or just occasional passing showers, reflecting real uncertainty among visitors about how wet this month actually runs; the region's showers here tend to be frequent rather than rare, so travelers should plan for rain most days rather than treating February as a clearly dry month. Posters consistently recommend light, breathable clothing and an umbrella on hand regardless of how sunny the morning looks, given how quickly a shower can roll in.
Tripadvisor community · February · 1 month ago · Read more on Tripadvisor ↗
Detailed August-specific weather trip reports for Bandar Seri Begawan are limited on the forum, with the destination's Tripadvisor weather overview describing conditions typical of Brunei's equatorial location: hot and humid enough that visitors should expect to sweat outdoors regardless of season. Unlike the Philippines to the northeast, Brunei sits close enough to the equator that it falls outside the main Pacific typhoon belt, so the destination's genuine year-round rain risk isn't typhoon-driven the way it is further north. Given the limited destination-specific detail for August exactly, this note leans on Brunei's broader equatorial pattern: expect hot, very humid conditions with a real, fairly consistent chance of rain regardless of month, rather than a sharply defined wet-versus-dry season. Posters generally rate August as hot, humid and genuinely rain-prone for Bandar Seri Begawan, in line with its equatorial setting rather than any dramatic seasonal swing.
Tripadvisor community · August · 1 month ago · Read more on Tripadvisor ↗

Add your own note from Bandar Seri Begawan's card on the map.