Mamuju climate — normals and trends
Mamuju (Indonesia) has a tropical rainforest climate (Af) under the Köppen-Geiger classification. Its mean annual temperature is 23.8 °C and it receives 4,057 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 May (24.2 °C on average) and the coldest is July (23.6 °C). Rainfall peaks in May.
Mamuju averages 0 frost days, 5 hot days (≥ 30 °C) and 342 rainy days per year.
Mamuju has warmed by +2.2 °C between 1940 and 2025, or +0.26 °C per decade. This trend is statistically significant.
The hottest day of the period reached 31.8 °C (on 2 December 2017) and the coldest 18.5 °C (on 18 July 1963).
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
MamujuWest Sulawesi
- coords
- -2.68°, 118.89°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
23.8°C
Average daily high
27.0°C
Average daily low
21.7°C
Annual rainfall
4,057mm
Sunshine / day
9.6h
Mean relative humidity
89%
Average peak wind
7.5km/h
Seasonal range
0.6°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
5 d/yr
Rainy days (≥ 1 mm)
342 d/yr
Annual snowfall
0.0 cm
Average feels-like high
32.8 °C
Average feels-like low
25.4 °C
Average peak gust
25.7 km/h
Tropical nights (≥ 20 °C)
362 d/yr
Solar radiation
18.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.2 °C
since 1940
+0.3 °C per decade · r² = 0.89 · 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
31.8 °C
2 December 2017
Coldest day
18.5 °C
18 July 1963
Wettest day
333 mm
10 October 1999
Windiest day
18.6 km/h
7 March 2007
Strongest gust
56.9 km/h
18 January 1952
Hottest feels-like
39.5 °C
26 March 2024
Coldest feels-like
20.8 °C
18 July 1963
Sunniest day
12.0 h
9 September 1940
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 | 28.3 °C | +1.6 °C | 618 mm | +326 mm |
| Feb | 28.8 °C | +2.0 °C | 197 mm | -47 mm |
| Mar | 28.6 °C | +1.5 °C | 379 mm | +76 mm |
| Apr | 28.6 °C | +1.3 °C | 311 mm | -42 mm |
| May | 29.1 °C | +1.8 °C | 381 mm | -10 mm |
| Jun | 28.2 °C | +1.3 °C | 381 mm | +48 mm |
| Jul | 28.6 °C | +1.8 °C | 197 mm | -129 mm |
| Aug | 28.3 °C | +1.4 °C | 426 mm | +85 mm |
| Sep | 28.9 °C | +1.9 °C | 505 mm | +136 mm |
| Oct | 29.2 °C | +2.0 °C | 445 mm | +66 mm |
| Nov | 29.0 °C | +1.9 °C | 185 mm | -200 mm |
| Dec | 28.4 °C | +1.6 °C | 265 mm | -78 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 Mamuju?
Mamuju has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 23.8 °C and it receives 4,057 mm of precipitation per year.
What is the hottest day ever recorded in Mamuju?
The hottest day measured in Mamuju between 1940 and 2025 was 2 December 2017, reaching 31.8 °C.
What is the coldest day in Mamuju?
The coldest day measured in Mamuju between 1940 and 2025 was 18 July 1963, at 18.5 °C.
Does it snow in Mamuju?
Almost never: Mamuju sees virtually no snow, with about 0 frost days per year.
Has the climate of Mamuju warmed?
Yes: Mamuju warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Mamuju?
The wettest day measured in Mamuju between 1940 and 2025 was 10 October 1999, with 333 mm of rain in 24 hours.
What was the windiest day in Mamuju?
The windiest day measured in Mamuju between 1940 and 2025 was 7 March 2007, with winds reaching 18.6 km/h.
What is the warmest month in Mamuju?
The warmest month in Mamuju is May (24.2 °C on average); the coldest is July (23.6 °C).
How much does it rain in Mamuju?
Mamuju receives on average 4,057 mm of precipitation per year, spread over about 342 rainy days.
Is it sunny in Mamuju?
Mamuju gets on average 9.6 hours of sunshine per day, roughly 3,504 hours per year over 1940-2025.
Are there tropical nights in Mamuju?
Yes: Mamuju has on average 362 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Mamuju?
In Mamuju, between 1940 and 2025, the highest apparent temperature reached 39.5 °C on 26 March 2024, and the lowest was 20.8 °C on 18 July 1963.
Compare Mamuju with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Mamuju