Selong climate — normals and trends
Selong (Indonesia) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 25.8 °C and it receives 1,783 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is November (26.7 °C on average) and the coldest is July (24.6 °C). Rainfall peaks in February.
Selong averages 0 frost days, 117 hot days (≥ 30 °C) and 199 rainy days per year.
Selong has warmed by +1.7 °C between 1940 and 2025, or +0.20 °C per decade. This trend is statistically significant.
The hottest day of the period reached 34.5 °C (on 9 December 2019) and the coldest 17.4 °C (on 7 July 1942).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
SelongWest Nusa Tenggara
- coords
- -8.65°, 116.53°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.8°C
Average daily high
29.3°C
Average daily low
23.3°C
Annual rainfall
1,783mm
Sunshine / day
10.9h
Mean relative humidity
82%
Average peak wind
13.7km/h
Seasonal range
2.1°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
117 d/yr
Rainy days (≥ 1 mm)
199 d/yr
Annual snowfall
0.0 cm
Average feels-like high
34.5 °C
Average feels-like low
27.3 °C
Average peak gust
31.3 km/h
Tropical nights (≥ 20 °C)
362 d/yr
Solar radiation
21.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.7 °C
since 1940
+0.2 °C per decade · r² = 0.78 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
34.5 °C
9 December 2019
Coldest day
17.4 °C
7 July 1942
Wettest day
142 mm
20 February 1996
Windiest day
34.1 km/h
14 December 1950
Strongest gust
68.0 km/h
15 February 2001
Hottest feels-like
42.5 °C
14 March 2005
Coldest feels-like
18.8 °C
7 July 1942
Sunniest day
12.5 h
15 January 1942
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 29.8 °C | +0.5 °C | 564 mm | +235 mm |
| Feb | 30.3 °C | +0.9 °C | 301 mm | -29 mm |
| Mar | 30.2 °C | +0.7 °C | 247 mm | -52 mm |
| Apr | 30.2 °C | +0.6 °C | 74 mm | -62 mm |
| May | 30.3 °C | +0.8 °C | 188 mm | +118 mm |
| Jun | 29.1 °C | +0.3 °C | 43 mm | +2 mm |
| Jul | 28.7 °C | +0.5 °C | 35 mm | +7 mm |
| Aug | 29.5 °C | +1.1 °C | 19 mm | +2 mm |
| Sep | 29.2 °C | +0.1 °C | 123 mm | +96 mm |
| Oct | 30.2 °C | +0.3 °C | 101 mm | +42 mm |
| Nov | 30.0 °C | -0.2 °C | 460 mm | +306 mm |
| Dec | 30.2 °C | +0.6 °C | 398 mm | +107 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Selong?
Selong has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 25.8 °C and it receives 1,783 mm of precipitation per year.
What is the hottest day ever recorded in Selong?
The hottest day measured in Selong between 1940 and 2025 was 9 December 2019, reaching 34.5 °C.
What is the coldest day in Selong?
The coldest day measured in Selong between 1940 and 2025 was 7 July 1942, at 17.4 °C.
Does it snow in Selong?
Almost never: Selong sees virtually no snow, with about 0 frost days per year.
Has the climate of Selong warmed?
Yes: Selong warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Selong?
The wettest day measured in Selong between 1940 and 2025 was 20 February 1996, with 142 mm of rain in 24 hours.
What was the windiest day in Selong?
The windiest day measured in Selong between 1940 and 2025 was 14 December 1950, with winds reaching 34.1 km/h.
What is the warmest month in Selong?
The warmest month in Selong is November (26.7 °C on average); the coldest is July (24.6 °C).
How much does it rain in Selong?
Selong receives on average 1,783 mm of precipitation per year, spread over about 199 rainy days.
Is it sunny in Selong?
Selong gets on average 10.9 hours of sunshine per day, roughly 3,979 hours per year over 1940-2025.
Are there tropical nights in Selong?
Yes: Selong has on average 362 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Selong?
In Selong, between 1940 and 2025, the highest apparent temperature reached 42.5 °C on 14 March 2005, and the lowest was 18.8 °C on 7 July 1942.
Compare Selong with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Selong