Langsa in Summer
In summer (June, July and August), Langsa sees average daytime highs around 33°C and overnight lows near 25°C, with 328 mm of rain over about 57 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 33°C. The sky is clear or mostly clear about 4% of the time across summer, and the air most often feels miserable.
Summer is Langsa's 2nd-best season to visit on our travel score. Langsa 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 Langsa's year-round climate.
- Avg daytime high
- 33°C
- warmest season of the year
- Avg overnight low
- 25°C
- Rainfall
- 328 mm
- 57 wet days
- Avg wind
- 5 km/h
- Travel score
- 2.8
- 2nd-best season
- Months
- Jun · Jul · Aug
Temperature in Langsa in Summer
Across summer, daytime highs hold fairly steady around 33°C.
A typical summer day in Langsa reaches about 33°C and drops to 25°C overnight. The warmest of the three months is June, the coolest August.
How summer really feels in Langsa
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.
Langsa 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° / 24° | 138 | 20.8 | 11.8 | 3.5 |
| Feb | 31° / 24° | 87 | 16.1 | 11.9 | 3.5 |
| Mar | 32° / 25° | 109 | 18.9 | 12 | 3.0 |
| Apr | 32° / 25° | 133 | 23.4 | 12.1 | 2.4 |
| May | 32° / 26° | 148 | 23.6 | 12.2 | 2.4 |
| Jun | 33° / 25° | 100 | 18 | 12.3 | 2.8 |
| Jul | 33° / 25° | 102 | 18.3 | 12.2 | 2.8 |
| Aug | 32° / 25° | 126 | 20.8 | 12.1 | 2.7 |
| Sep | 32° / 25° | 179 | 25.5 | 12 | 2.5 |
| Oct | 31° / 25° | 225 | 28 | 11.9 | 2.5 |
| Nov | 30° / 25° | 288 | 28.1 | 11.8 | 2.6 |
| Dec | 30° / 24° | 269 | 26.2 | 11.7 | 3.0 |
Cloud cover in Summer
The sky is clear or mostly clear about 4% of the time across summer.
Chance of precipitation in Summer
Langsa gets around 328 mm of rain over 57 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 5 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 5.3 kWh/m².
Hazard calendar for Langsa
In summer, Langsa overlaps its cyclone season. The full year is below, with each hazard's peak months called out.
Langsa sits in the North Indian Ocean cyclone zone; the season peaks May and October–November.
Langsa's rainy season runs September–January, when most of the year's rain falls.
Is summer a good time to visit Langsa?
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 Langsa.
What to pack for Langsa in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Langsa sees daytime highs around 33°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 57 days see rain.
Sea temperature near Langsa 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 at the nearest coast (about 25 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 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 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 | 30 | Tropical |
| Apr | 30 | 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 Langsa in Summer
Clear-sky midday UV across summer averages around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Langsa peaks around February 21 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 13 at about 10 (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) | 12 | 14 | 14 | 14 | 12 | 11 | 10 | 11 | 13 | 12 | 11 | 11 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 12 | Extreme |
| Feb | 14 | Extreme |
| Mar | 14 | Extreme |
| Apr | 14 | Extreme |
| May | 12 | Extreme |
| Jun | 11 | Extreme |
| Jul | 10 | Extreme |
| Aug | 11 | Extreme |
| Sep | 13 | Extreme |
| Oct | 12 | Extreme |
| Nov | 11 | Extreme |
| Dec | 11 | Extreme |
Air quality in Langsa 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 Langsa is worst in September — around 21 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (December, 12 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) | 14 | 16 | 19 | 19 | 18 | 19 | 21 | 20 | 21 | 17 | 12 | 12 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 14 | Moderate |
| Feb | 16 | Moderate |
| Mar | 19 | Moderate |
| Apr | 19 | Moderate |
| May | 18 | Moderate |
| Jun | 19 | Moderate |
| Jul | 21 | Moderate |
| Aug | 20 | Moderate |
| Sep | 21 | Moderate |
| Oct | 17 | Moderate |
| Nov | 12 | Good |
| Dec | 12 | Good |
Where is Langsa?
Langsa sits at 4.5°N, 98.0°E, 10 m above sea level, in Indonesia. The nearest listed city is Pangkalan Brandan, 60 km away.
Topography around Langsa
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Langsa.
Within 3 km, the terrain around Langsa has only modest variations in elevation — a maximum elevation change of 45 m around an average of 12 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 297 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,050 m.
The land around Langsa is covered by trees (43%) and artificial surfaces (36%) within 3 km, trees (58%) within 16 km, and trees (63%) and water (32%) 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 Langsa (4.4683°, 97.9683°, elevation 10 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.