Mentiri in Winter
In winter (December, January and February), Mentiri sees average daytime highs around 30°C and overnight lows near 25°C, with 488 mm of rain over about 57 wet days across the season. It is the coldest season of the year and the 3rd-wettest season.
Across winter, daytime highs hold fairly steady around 30°C. The sky is clear or mostly clear about 6% of the time across winter, and the air most often feels miserable.
Winter is Mentiri's best season of the year to visit on our travel score. Mentiri has little temperature swing across the year, so its calendar seasons blur — the season framing matters less here than for a place with four distinct seasons. For the whole year in context, see Mentiri's year-round climate.
- Avg daytime high
- 30°C
- coldest season of the year
- Avg overnight low
- 25°C
- Rainfall
- 488 mm
- 57 wet days
- Avg wind
- 9 km/h
- Travel score
- 3.7
- best season of the year
- Months
- Dec · Jan · Feb
Temperature in Mentiri in Winter
Across winter, daytime highs hold fairly steady around 30°C.
A typical winter day in Mentiri reaches about 30°C and drops to 25°C overnight. The warmest of the three months is December, the coolest January.
How winter really feels in Mentiri
Once humidity and wind are folded in, winter brings about 90 days that feel above 32°C and 0 that feel at or below 0°C.
The story in winter is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Mentiri weather by month
How the three winter months (December, January and February) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 30° / 25° | 162 | 19.2 | 11.7 | 3.8 |
| Feb | 30° / 25° | 105 | 13.3 | 11.8 | 4.2 |
| Mar | 31° / 25° | 91 | 15.8 | 12 | 3.8 |
| Apr | 32° / 25° | 131 | 19.5 | 12.1 | 3.1 |
| May | 32° / 26° | 148 | 21.5 | 12.2 | 2.9 |
| Jun | 31° / 25° | 185 | 19.8 | 12.3 | 3.1 |
| Jul | 31° / 25° | 179 | 21.1 | 12.3 | 3.1 |
| Aug | 31° / 25° | 182 | 21.3 | 12.2 | 3.1 |
| Sep | 31° / 25° | 196 | 23.2 | 12 | 2.9 |
| Oct | 30° / 25° | 254 | 26.9 | 11.9 | 2.8 |
| Nov | 30° / 25° | 232 | 26 | 11.8 | 2.8 |
| Dec | 30° / 25° | 222 | 24.7 | 11.7 | 3.1 |
Cloud cover in Winter
The sky is clear or mostly clear about 6% of the time across winter.
Chance of precipitation in Winter
Mentiri gets around 488 mm of rain over 57 wet days across winter. The line is the day-by-day chance of measurable precipitation.
Humidity in Winter
Most of winter feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Winter
Winds average 9 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 11 h 42 min in early December to 11 h 54 min by late February. The lit band spans sunrise to sunset each day.
Solar energy in Winter
Average shortwave solar energy reaching the ground each day across winter, about 5.1 kWh/m².
Hazard calendar for Mentiri
In winter, Mentiri overlaps its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Mentiri sits in the Pacific typhoon belt; the season peaks July–October.
Is winter a good time to visit Mentiri?
Our two travel scores rate winter for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
winter is a weaker month for outdoor sightseeing in Mentiri.
What to pack for Mentiri in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Mentiri sees daytime highs around 30°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 57 days see rain.
Sea temperature near Mentiri in Winter
The nearest coast averages about 28°C across winter — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 16 km away) is warmest in May at about 30°C and coldest in February near 28°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 28 | 28 | 29 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 29 |
| Comfort | Tropical | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 28 | Tropical |
| Feb | 28 | Warm |
| Mar | 29 | Tropical |
| Apr | 30 | Tropical |
| May | 30 | Tropical |
| Jun | 30 | Tropical |
| Jul | 30 | Tropical |
| Aug | 30 | Tropical |
| Sep | 30 | Tropical |
| Oct | 30 | Tropical |
| Nov | 30 | Tropical |
| Dec | 29 | Tropical |
UV index in Mentiri in Winter
Clear-sky midday UV across winter averages around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Mentiri peaks around February 19 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 23 at about 11 (extreme).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 13 | 15 | 14 | 15 | 14 | 12 | 11 | 13 | 13 | 13 | 11 | 11 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 13 | Extreme |
| Feb | 15 | Extreme |
| Mar | 14 | Extreme |
| Apr | 15 | Extreme |
| May | 14 | Extreme |
| Jun | 12 | Extreme |
| Jul | 11 | Extreme |
| Aug | 13 | Extreme |
| Sep | 13 | Extreme |
| Oct | 13 | Extreme |
| Nov | 11 | Extreme |
| Dec | 11 | Extreme |
Air quality in Mentiri in Winter
Average fine-particle pollution (PM2.5) through the year — so you can see where winter falls, not just the annual average.
Air quality in Mentiri is worst in September — around 17 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (December, 9 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 10 | 11 | 15 | 16 | 16 | 14 | 14 | 14 | 17 | 12 | 9 | 9 |
| Level | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 10 | Good |
| Feb | 11 | Good |
| Mar | 15 | Moderate |
| Apr | 16 | Moderate |
| May | 16 | Moderate |
| Jun | 14 | Moderate |
| Jul | 14 | Moderate |
| Aug | 14 | Moderate |
| Sep | 17 | Moderate |
| Oct | 12 | Good |
| Nov | 9 | Good |
| Dec | 9 | Good |
Where is Mentiri?
Mentiri sits at 5.0°N, 115.0°E, 8 m above sea level, in Brunei. The nearest listed city is Serasa, 7.0 km away.
Topography around Mentiri
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Mentiri.
Within 3 km, the terrain around Mentiri has only modest variations in elevation — a maximum elevation change of 126 m around an average of 28 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 197 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,921 m.
The land around Mentiri is covered by trees (40%) and water (21%) within 3 km, water (61%) and trees (21%) within 16 km, and trees (53%) and water (42%) within 80 km.
Brunei travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type G
- 240 V · 50 Hz
- Prices
- ≈ 35% of US
- price level, 2025
- GDP per capita
- $32,235
- 2025
- Homicide rate
- 0.5
- per 100k, 2013
- Road deaths
- 7.5
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Mentiri (4.9706°, 115.0208°, elevation 8 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.