Tutong in Summer
In summer (June, July and August), Tutong sees average daytime highs around 30°C and overnight lows near 25°C, with 600 mm of rain over about 65 wet days across the season. It is the warmest season of the year and the 3rd-wettest season.
Across summer, daytime highs hold fairly steady around 30°C. The sky is clear or mostly clear about 5% of the time across summer, and the air most often feels miserable.
Summer is Tutong's 2nd-best season to visit on our travel score. Tutong 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 Tutong's year-round climate.
- Avg daytime high
- 30°C
- warmest season of the year
- Avg overnight low
- 25°C
- Rainfall
- 600 mm
- 65 wet days
- Avg wind
- 8 km/h
- Travel score
- 3.4
- 2nd-best season
- Months
- Jun · Jul · Aug
Temperature in Tutong in Summer
Across summer, daytime highs hold fairly steady around 30°C.
A typical summer day in Tutong reaches about 30°C and drops to 25°C overnight. The warmest of the three months is June, the coolest July.
How summer really feels in Tutong
Once humidity and wind are folded in, summer brings about 92 days that feel above 32°C and 0 that feel at or below 0°C.
The story in summer is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Tutong weather by month
How the three summer months (June, July and August) 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 | 29° / 24° | 226 | 24.3 | 11.8 | 3.5 |
| Feb | 29° / 24° | 160 | 20.3 | 11.8 | 3.8 |
| Mar | 29° / 24° | 144 | 22.7 | 12 | 3.6 |
| Apr | 30° / 25° | 194 | 25.5 | 12.1 | 3.0 |
| May | 30° / 25° | 208 | 24.3 | 12.2 | 3.1 |
| Jun | 30° / 25° | 211 | 21.4 | 12.3 | 3.4 |
| Jul | 30° / 25° | 194 | 22 | 12.3 | 3.4 |
| Aug | 30° / 25° | 195 | 21.8 | 12.2 | 3.4 |
| Sep | 30° / 25° | 214 | 23.4 | 12 | 3.2 |
| Oct | 30° / 24° | 258 | 27.6 | 11.9 | 3.0 |
| Nov | 30° / 24° | 272 | 28.2 | 11.8 | 2.8 |
| Dec | 29° / 24° | 266 | 28.2 | 11.7 | 3.0 |
Cloud cover in Summer
The sky is clear or mostly clear about 5% of the time across summer.
Chance of precipitation in Summer
Tutong gets around 600 mm of rain over 65 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 8 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 12 h 18 min in early June to 12 h 06 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 5.3 kWh/m².
Hazard calendar for Tutong
In summer, Tutong overlaps its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Tutong sits in the Pacific typhoon belt; the season peaks July–October.
Is summer a good time to visit Tutong?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a weaker month for outdoor sightseeing in Tutong.
What to pack for Tutong in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Tutong sees daytime highs around 30°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 65 days see rain.
Sea temperature near Tutong in Summer
The nearest coast averages about 30°C across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore is warmest in May at about 30°C and coldest in February near 27°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 | 27 | 28 | 29 | 30 | 30 | 30 | 30 | 30 | 29 | 29 | 29 |
| Comfort | Warm | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 28 | Warm |
| Feb | 27 | Warm |
| Mar | 28 | Warm |
| Apr | 29 | Tropical |
| May | 30 | Tropical |
| Jun | 30 | Tropical |
| Jul | 30 | Tropical |
| Aug | 30 | Tropical |
| Sep | 30 | Tropical |
| Oct | 29 | Tropical |
| Nov | 29 | Tropical |
| Dec | 29 | Tropical |
UV index in Tutong in Summer
Clear-sky midday UV across summer averages around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Tutong peaks around February 18 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 10 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 | 14 | 14 | 14 | 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 | 14 | Extreme |
| Mar | 14 | Extreme |
| Apr | 14 | 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 Tutong in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in Tutong is worst in September — around 25 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 17 | 21 | 24 | 22 | 23 | 21 | 21 | 21 | 25 | 20 | 18 | 16 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 17 | Moderate |
| Feb | 21 | Moderate |
| Mar | 24 | Moderate |
| Apr | 22 | Moderate |
| May | 23 | Moderate |
| Jun | 21 | Moderate |
| Jul | 21 | Moderate |
| Aug | 21 | Moderate |
| Sep | 25 | Moderate |
| Oct | 20 | Moderate |
| Nov | 18 | Moderate |
| Dec | 16 | Moderate |
Where is Tutong?
Tutong sits at 4.8°N, 114.6°E, 8 m above sea level, in Brunei. The nearest listed city is Liang, 22 km away.
Topography around Tutong
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Tutong.
Within 3 km, the terrain around Tutong has only modest variations in elevation — a maximum elevation change of 79 m around an average of 9 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 120 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,383 m.
The land around Tutong is covered by trees (44%) and water (31%) within 3 km, water (47%) and trees (46%) within 16 km, and trees (57%) and water (39%) 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 Tutong (4.8028°, 114.6492°, 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.