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Monthly climate in Seria, Brunei Darussalam

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Seria features a tropical rainforest climate (Af). Temperatures typically range between 27 °C (80 °F) and 28 °C (82 °F) through the year, but rarely can drop to 23 °C (74 °F) or can rise to as high as 33 °C (91 °F). The average annual precipitation amounts to about 2767 mm (108.9 inches) and receives 298 rainy days on the 1 mm (0.04 inches) threshold annually. Seria enjoys an average of 3300 hours of sunshine throughout the year, and daylight varies from 11 hours 51 minutes to 12 hours 21 minutes per day.

Monthly average temperatures in Seria, Brunei Darussalam

The warmest months in Seria are May, June and August, with daily mean temperatures ranging from 28 to 28 °C (82 - 82 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 27 to 27 °C (80 - 80 °F) throughout the day. On average each year, Seria experiences 329 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Seria. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum31°C
(88°F)		31°C
(87°F)		32°C
(89°F)		32°C
(89°F)		33°C
(91°F)		33°C
(91°F)		33°C
(91°F)		33°C
(91°F)		33°C
(91°F)		32°C
(90°F)		32°C
(89°F)		31°C
(89°F)
Mean maximum31°C
(88°F)		30°C
(87°F)		31°C
(88°F)		31°C
(89°F)		32°C
(90°F)		32°C
(90°F)		32°C
(90°F)		32°C
(91°F)		32°C
(90°F)		31°C
(89°F)		31°C
(88°F)		31°C
(88°F)
Average high29°C
(85°F)		29°C
(85°F)		30°C
(85°F)		30°C
(87°F)		31°C
(87°F)		30°C
(87°F)		30°C
(87°F)		30°C
(87°F)		30°C
(86°F)		30°C
(86°F)		30°C
(86°F)		29°C
(85°F)
Daily mean27°C
(80°F)		27°C
(80°F)		27°C
(81°F)		27°C
(81°F)		28°C
(82°F)		28°C
(82°F)		27°C
(82°F)		28°C
(82°F)		27°C
(81°F)		27°C
(81°F)		27°C
(81°F)		27°C
(80°F)
Average low25°C
(77°F)		25°C
(77°F)		25°C
(77°F)		25°C
(78°F)		26°C
(79°F)		26°C
(78°F)		25°C
(78°F)		25°C
(78°F)		25°C
(78°F)		25°C
(77°F)		25°C
(77°F)		25°C
(77°F)
Mean minimum24°C
(75°F)		24°C
(75°F)		24°C
(75°F)		24°C
(76°F)		25°C
(77°F)		25°C
(77°F)		24°C
(76°F)		24°C
(76°F)		24°C
(76°F)		24°C
(75°F)		24°C
(76°F)		24°C
(76°F)
Minimum23°C
(74°F)		23°C
(74°F)		23°C
(74°F)		24°C
(75°F)		24°C
(76°F)		24°C
(75°F)		24°C
(75°F)		24°C
(75°F)		24°C
(75°F)		24°C
(75°F)		24°C
(76°F)		24°C
(75°F)

Compare climate in Seria with other places

Compare temperature, precipitation, sunshine, UV index in Seria, Brunei Darussalam with other places around the world.

Monthly average precipitation in Seria, Brunei Darussalam

Seria usually has the most precipitation in October, November and December, with an average of 28 rainy days and 292 mm (11.5 inches) of precipitation per month. The driest months in Seria are February, March and August. On average, 175 mm (6.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Seria. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)221 (8.7)150 (5.9)172 (6.8)213 (8.4)215 (8.5)256 (10.1)204 (8.0)203 (8.0)257 (10.1)286 (11.3)290 (11.4)301 (11.8)
Average precipitation days (≥ 1 mm)242226252722222224272829

Monthly sunshine hours in Seria, Brunei Darussalam

The sunniest months in Seria are March, May and July, when the sun shines an average of 9 hours 24 minutes a day. Least sunny months in Seria: January, February and September receive an average of 8 hours 20 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Seria. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours220263287284291281295287267277269272
Mean daily daylight hours11h 52m11h 57m12h 4m12h 12m12h 18m12h 21m12h 20m12h 14m12h 7m12h 0m11h 53m11h 51m

Solar UV radiation in Seria, Brunei Darussalam

Seria experiences the highest level of ultraviolet (UV) radiation in February, March and April, when the maximum UV index can reach values of 15 - 16, which corresponds to the Extreme category of sun exposure. June, July and December are in the Extreme exposure category. In these months, the maximum values of the UV index do not exceed 13. For more detailed information, check out our hourly Seria UV Index data.

Average daily maximum UV levels by month for Seria. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)131516161413131414141312