Sibu Jaya in Summer
In summer (June, July and August), Sibu Jaya sees average daytime highs around 31°C and overnight lows near 24°C, with 527 mm of rain over about 63 wet days across the season. It is the warmest season of the year and the driest season of the year.
Across summer, daytime highs hold fairly steady around 31°C. The sky is clear or mostly clear about 5% of the time across summer, and the air most often feels miserable.
Summer is Sibu Jaya's best season of the year to visit on our travel score. Sibu Jaya 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 Sibu Jaya's year-round climate.
- Avg daytime high
- 31°C
- warmest season of the year
- Avg overnight low
- 24°C
- Rainfall
- 527 mm
- 63 wet days
- Avg wind
- 4 km/h
- Travel score
- 3.1
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Sibu Jaya in Summer
Across summer, daytime highs hold fairly steady around 31°C.
A typical summer day in Sibu Jaya reaches about 31°C and drops to 24°C overnight. The warmest of the three months is June, the coolest July.
How summer really feels in Sibu Jaya
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.
Sibu Jaya 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 | 30° / 23° | 299 | 27.5 | 11.9 | 2.8 |
| Feb | 30° / 23° | 229 | 23.4 | 11.9 | 2.9 |
| Mar | 31° / 24° | 218 | 25.9 | 12 | 2.7 |
| Apr | 31° / 24° | 226 | 26.6 | 12 | 2.5 |
| May | 31° / 24° | 211 | 25.6 | 12.1 | 2.7 |
| Jun | 31° / 24° | 170 | 21.1 | 12.1 | 3.1 |
| Jul | 31° / 24° | 172 | 20.7 | 12.1 | 3.2 |
| Aug | 31° / 24° | 185 | 21.5 | 12.1 | 3.0 |
| Sep | 31° / 23° | 234 | 24.4 | 12 | 2.8 |
| Oct | 31° / 23° | 263 | 27.7 | 12 | 2.6 |
| Nov | 30° / 23° | 288 | 28.5 | 11.9 | 2.5 |
| Dec | 30° / 23° | 317 | 28.7 | 11.9 | 2.6 |
Cloud cover in Summer
The sky is clear or mostly clear about 5% of the time across summer.
Chance of precipitation in Summer
Sibu Jaya gets around 527 mm of rain over 63 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 4 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 12 h 06 min in early June to 12 hours 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 4.8 kWh/m².
Is summer a good time to visit Sibu Jaya?
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 Sibu Jaya.
What to pack for Sibu Jaya in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Sibu Jaya sees daytime highs around 31°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 63 days see rain.
UV index in Sibu Jaya 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 Sibu Jaya peaks around March 14 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 14 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 | 15 | 15 | 14 | 12 | 11 | 13 | 13 | 14 | 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 | 15 | Extreme |
| Apr | 15 | Extreme |
| May | 14 | Extreme |
| Jun | 12 | Extreme |
| Jul | 11 | Extreme |
| Aug | 13 | Extreme |
| Sep | 13 | Extreme |
| Oct | 14 | Extreme |
| Nov | 11 | Extreme |
| Dec | 11 | Extreme |
Air quality in Sibu Jaya 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 Sibu Jaya is worst in September — around 26 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (December, 11 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) | 12 | 12 | 13 | 14 | 13 | 14 | 16 | 22 | 26 | 17 | 11 | 11 |
| Level | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 12 | Good |
| Feb | 12 | Moderate |
| Mar | 13 | Moderate |
| Apr | 14 | Moderate |
| May | 13 | Moderate |
| Jun | 14 | Moderate |
| Jul | 16 | Moderate |
| Aug | 22 | Moderate |
| Sep | 26 | Moderate |
| Oct | 17 | Moderate |
| Nov | 11 | Good |
| Dec | 11 | Good |
Where is Sibu Jaya?
Sibu Jaya sits at 2.2°N, 112.0°E, 68 m above sea level, in Malaysia. The nearest listed city is Sibu, 18 km away.
Topography around Sibu Jaya
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Sibu Jaya.
Within 3 km, the terrain around Sibu Jaya has only modest variations in elevation — a maximum elevation change of 47 m around an average of 23 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 223 m; within 80 km, large variations in elevation — a maximum elevation change of 971 m.
The land around Sibu Jaya is covered by trees (75%) within 3 km, trees (90%) within 16 km, and trees (90%) within 80 km.
Malaysia travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type C / G / M
- 230 V · 50 Hz
- Prices
- ≈ 32% of US
- price level, 2025
- GDP per capita
- $13,125
- 2025
- Happiness
- 6.0 / 10
- World Happiness, 2025
- Safe drinking water
- 95%
- of population, 2024
- Homicide rate
- 0.7
- per 100k, 2023
- Road deaths
- 22.5
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- High
- EF EPI 581
- 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 Sibu Jaya (2.2403°, 111.9714°, elevation 68 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.