Tutong, Brunei climate

Af Tropical rainforest

Tutong has a remarkably steady tropical climate (Tropical rainforest, Köppen Af). The hottest month is May with an average daily high near 32°C, while the coldest is January averaging around 23°C at night. Around 2747 mm of precipitation falls each year, peaking in December (368 mm) and easing off in February (151 mm).

☀️ All year

Hot

Daytime highs near 32°C most of the year.

🌙 Nights

Stays warm

Even the coolest nights stay near 23°C.

🌧️ Rain

Very wet

About 2747 mm of rain a year.

Wettest in December

⛅ Sky & trend

Often grey

Overcast skies dominate much of the year.

Temperature & precipitation

Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figures

Hours of sunshine per day

Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)

Tutong climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	30	30	31	32	32	32	31	32	31	31	31	31
Avg temp (°C)	27	27	27	28	28	28	28	28	27	27	27	27
Avg low (°C)	23	24	24	24	24	24	24	24	24	24	24	24
Precipitation (mm)	278	151	154	188	205	207	194	213	211	300	278	368

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°C)	30	30	31	32	32	32
Avg temp (°C)	27	27	27	28	28	28
Avg low (°C)	23	24	24	24	24	24
Precipitation (mm)	278	151	154	188	205	207

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	31	32	31	31	31	31
Avg temp (°C)	28	28	27	27	27	27
Avg low (°C)	24	24	24	24	24	24
Precipitation (mm)	194	213	211	300	278	368

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	82	79	72	75	79	81	82	83	86	88	89	88
Relative humidity (%)	84	85	83	81	79	79	79	79	80	82	82	83
Wind speed (km/h)	14.1	14.0	11.3	8.6	8.0	9.1	9.8	10.4	10.0	10.5	10.0	11.8

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	82	79	72	75	79	81
Relative humidity (%)	84	85	83	81	79	79
Wind speed (km/h)	14.1	14.0	11.3	8.6	8.0	9.1

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	82	83	86	88	89	88
Relative humidity (%)	79	79	80	82	82	83
Wind speed (km/h)	9.8	10.4	10.0	10.5	10.0	11.8

Methodology & sources

Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Miri, a weather station, about 91 km from the city centre. The underlying daily records come from NOAA's global station network.

Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.

How we build these numbers →