Wamena climate — normals and trends
Wamena (Indonesia) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 14.7 °C and it receives 3,541 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 March (15.0 °C on average) and the coldest is July (14.0 °C). Rainfall peaks in March.
Wamena averages 0 frost days, 0 hot days (≥ 30 °C) and 337 rainy days per year.
Wamena has warmed by +2.8 °C between 1940 and 2025, or +0.33 °C per decade. This trend is statistically significant.
The hottest day of the period reached 25.9 °C (on 17 January 2020) and the coldest 6.2 °C (on 16 September 1973).
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
WamenaHighland Papua
- coords
- -4.10°, 138.95°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
14.7°C
Average daily high
19.2°C
Average daily low
11.2°C
Annual rainfall
3,541mm
Sunshine / day
8.5h
Mean relative humidity
89%
Average peak wind
6.3km/h
Seasonal range
1.0°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
337 d/yr
Annual snowfall
0.0 cm
Average feels-like high
20.6 °C
Average feels-like low
11.0 °C
Average peak gust
27.1 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
15.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.8 °C
since 1940
+0.3 °C per decade · r² = 0.88 · 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
25.9 °C
17 January 2020
Coldest day
6.2 °C
16 September 1973
Wettest day
128 mm
9 April 1978
Windiest day
10.5 km/h
8 June 2015
Strongest gust
65.2 km/h
10 February 1970
Hottest feels-like
29.6 °C
24 December 2014
Coldest feels-like
4.3 °C
16 September 1973
Sunniest day
12.2 h
28 November 1989
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 21.2 °C | +1.8 °C | 283 mm | -85 mm |
| Feb | 20.9 °C | +1.5 °C | 391 mm | -3 mm |
| Mar | 20.5 °C | +0.9 °C | 527 mm | +102 mm |
| Apr | 19.8 °C | +0.4 °C | 576 mm | +228 mm |
| May | 20.3 °C | +0.9 °C | 325 mm | +106 mm |
| Jun | 19.6 °C | +0.8 °C | 187 mm | -6 mm |
| Jul | 19.2 °C | +0.6 °C | 191 mm | -29 mm |
| Aug | 19.6 °C | +0.9 °C | 259 mm | +8 mm |
| Sep | 19.8 °C | +0.8 °C | 234 mm | -29 mm |
| Oct | 20.1 °C | +0.7 °C | 279 mm | +13 mm |
| Nov | 20.3 °C | +0.7 °C | 323 mm | +68 mm |
| Dec | 20.5 °C | +0.9 °C | 334 mm | -6 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 Wamena?
Wamena has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 14.7 °C and it receives 3,541 mm of precipitation per year.
What is the hottest day ever recorded in Wamena?
The hottest day measured in Wamena between 1940 and 2025 was 17 January 2020, reaching 25.9 °C.
What is the coldest day in Wamena?
The coldest day measured in Wamena between 1940 and 2025 was 16 September 1973, at 6.2 °C.
Does it snow in Wamena?
Almost never: Wamena sees virtually no snow, with about 0 frost days per year.
Has the climate of Wamena warmed?
Yes: Wamena warmed by +2.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Wamena?
The wettest day measured in Wamena between 1940 and 2025 was 9 April 1978, with 128 mm of rain in 24 hours.
What was the windiest day in Wamena?
The windiest day measured in Wamena between 1940 and 2025 was 8 June 2015, with winds reaching 10.5 km/h.
What is the warmest month in Wamena?
The warmest month in Wamena is March (15.0 °C on average); the coldest is July (14.0 °C).
How much does it rain in Wamena?
Wamena receives on average 3,541 mm of precipitation per year, spread over about 337 rainy days.
Is it sunny in Wamena?
Wamena gets on average 8.5 hours of sunshine per day, roughly 3,103 hours per year over 1940-2025.
Are there tropical nights in Wamena?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Wamena.
What was the most extreme apparent temperature in Wamena?
In Wamena, between 1940 and 2025, the highest apparent temperature reached 29.6 °C on 24 December 2014, and the lowest was 4.3 °C on 16 September 1973.
Compare Wamena with another city
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Nearby cities
The climate around Wamena