Tanjung Selor in Summer
In summer (June, July and August), Tanjung Selor sees average daytime highs around 31°C and overnight lows near 23°C, with 690 mm of rain over about 80 wet days across the season. It is the 2nd-warmest season 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 4% of the time across summer, and the air most often feels oppressive.
Summer is Tanjung Selor's 2nd-best season to visit on our travel score. Tanjung Selor 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 Tanjung Selor's year-round climate.
- Avg daytime high
- 31°C
- 2nd-warmest season
- Avg overnight low
- 23°C
- Rainfall
- 690 mm
- 80 wet days
- Avg wind
- 4 km/h
- Travel score
- 2.6
- 2nd-best season
- Months
- Jun · Jul · Aug
Temperature in Tanjung Selor in Summer
Across summer, daytime highs hold fairly steady around 31°C.
A typical summer day in Tanjung Selor reaches about 31°C and drops to 23°C overnight. The warmest of the three months is August, the coolest July.
How summer really feels in Tanjung Selor
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.
Tanjung Selor 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° | 279 | 27.1 | 11.9 | 2.9 |
| Feb | 30° / 23° | 209 | 24.3 | 11.9 | 2.8 |
| Mar | 31° / 23° | 254 | 28 | 12 | 2.6 |
| Apr | 31° / 23° | 256 | 27.4 | 12.1 | 2.5 |
| May | 31° / 23° | 290 | 29.5 | 12.1 | 2.4 |
| Jun | 31° / 23° | 251 | 26.5 | 12.2 | 2.6 |
| Jul | 31° / 23° | 220 | 26.7 | 12.1 | 2.7 |
| Aug | 31° / 23° | 220 | 26.4 | 12.1 | 2.6 |
| Sep | 32° / 23° | 253 | 27.2 | 12 | 2.4 |
| Oct | 31° / 23° | 294 | 28.8 | 11.9 | 2.4 |
| Nov | 31° / 23° | 313 | 29.2 | 11.9 | 2.4 |
| Dec | 31° / 23° | 309 | 29.2 | 11.8 | 2.5 |
Cloud cover in Summer
The sky is clear or mostly clear about 4% of the time across summer.
Chance of precipitation in Summer
Tanjung Selor gets around 690 mm of rain over 80 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels oppressive — 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 12 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 5.0 kWh/m².
Hazard calendar for Tanjung Selor
In summer, Tanjung Selor overlaps its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Tanjung Selor sits in the Pacific typhoon belt; the season peaks July–October.
Is summer a good time to visit Tanjung Selor?
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 Tanjung Selor.
What to pack for Tanjung Selor in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Tanjung Selor sees daytime highs around 31°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 80 days see rain.
Sea temperature near Tanjung Selor in Summer
The nearest coast averages about 29°C across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 43 km away) is warmest in May at about 30°C and coldest in January near 29°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) | 29 | 29 | 29 | 30 | 30 | 30 | 29 | 29 | 29 | 29 | 29 | 29 |
| Comfort | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 29 | Tropical |
| Feb | 29 | Tropical |
| Mar | 29 | Tropical |
| Apr | 30 | Tropical |
| May | 30 | Tropical |
| Jun | 30 | Tropical |
| Jul | 29 | Tropical |
| Aug | 29 | Tropical |
| Sep | 29 | Tropical |
| Oct | 29 | Tropical |
| Nov | 29 | Tropical |
| Dec | 29 | Tropical |
UV index in Tanjung Selor 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 Tanjung Selor peaks around March 16 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 14 at about 12 (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 | 13 | 12 | 12 |
| 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 | 13 | Extreme |
| Nov | 12 | Extreme |
| Dec | 12 | Extreme |
Air quality in Tanjung Selor 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 Tanjung Selor is worst in September — around 24 µg/m³ PM2.5 (moderate), about 3.2× the cleanest month (January, 7 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) | 7 | 8 | 9 | 11 | 9 | 10 | 12 | 19 | 24 | 14 | 8 | 7 |
| Level | Good | Good | Good | Good | Good | Good | Good | Moderate | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 7 | Good |
| Feb | 8 | Good |
| Mar | 9 | Good |
| Apr | 11 | Good |
| May | 9 | Good |
| Jun | 10 | Good |
| Jul | 12 | Good |
| Aug | 19 | Moderate |
| Sep | 24 | Moderate |
| Oct | 14 | Moderate |
| Nov | 8 | Good |
| Dec | 7 | Good |
Where is Tanjung Selor?
Tanjung Selor sits at 2.8°N, 117.4°E, 9 m above sea level, in Indonesia. The nearest listed city is Tarakan, 59 km away.
Topography around Tanjung Selor
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Tanjung Selor.
Within 3 km, the terrain around Tanjung Selor has only modest variations in elevation — a maximum elevation change of 142 m around an average of 8 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 356 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,364 m.
The land around Tanjung Selor is covered by trees (51%) within 3 km, trees (85%) within 16 km, and trees (66%) and water (26%) within 80 km.
Indonesia travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / F
- 230 V · 50 Hz
- Prices
- ≈ 29% of US
- price level, 2025
- GDP per capita
- $5,060
- 2025
- Happiness
- 5.6 / 10
- World Happiness, 2025
- Safe drinking water
- 30%
- of population, 2024
- Homicide rate
- 0.3
- per 100k, 2022
- Road deaths
- 11.3
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Low
- EF EPI 471
- 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 Tanjung Selor (2.8375°, 117.3653°, elevation 9 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.