Sentani climate — normals and trends
Sentani (Indonesia) has a tropical rainforest climate (Af) under the Köppen-Geiger classification. Its mean annual temperature is 26.0 °C and it receives 2,575 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 (26.2 °C on average) and the coldest is July (25.7 °C). Rainfall peaks in March.
Sentani averages 0 frost days, 4 hot days (≥ 30 °C) and 323 rainy days per year.
Sentani has warmed by +1.6 °C between 1940 and 2025, or +0.18 °C per decade. This trend is statistically significant.
The hottest day of the period reached 31.1 °C (on 18 May 2020) and the coldest 22.8 °C (on 22 July 1943).
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
SentaniSpecial Region of Papua
- coords
- -2.57°, 140.51°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.0°C
Average daily high
27.9°C
Average daily low
24.5°C
Annual rainfall
2,575mm
Sunshine / day
9.6h
Mean relative humidity
86%
Average peak wind
14.7km/h
Seasonal range
0.5°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
4 d/yr
Rainy days (≥ 1 mm)
323 d/yr
Annual snowfall
0.0 cm
Average feels-like high
33.3 °C
Average feels-like low
28.7 °C
Average peak gust
27.5 km/h
Tropical nights (≥ 20 °C)
365 d/yr
Solar radiation
18.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.6 °C
since 1940
+0.2 °C per decade · r² = 0.87 · 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
31.1 °C
18 May 2020
Coldest day
22.8 °C
22 July 1943
Wettest day
174 mm
10 August 2010
Windiest day
35.1 km/h
13 April 2005
Strongest gust
61.6 km/h
13 April 2005
Hottest feels-like
38.8 °C
21 October 2017
Coldest feels-like
24.5 °C
29 June 1972
Sunniest day
12.0 h
12 December 2020
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 | 28.9 °C | +1.2 °C | 199 mm | -25 mm |
| Feb | 28.6 °C | +1.0 °C | 259 mm | +26 mm |
| Mar | 28.9 °C | +1.2 °C | 275 mm | +16 mm |
| Apr | 28.2 °C | +0.3 °C | 326 mm | +74 mm |
| May | 28.8 °C | +0.7 °C | 278 mm | +77 mm |
| Jun | 28.2 °C | +0.5 °C | 307 mm | +111 mm |
| Jul | 28.2 °C | +0.7 °C | 231 mm | +39 mm |
| Aug | 28.1 °C | +0.4 °C | 261 mm | +78 mm |
| Sep | 28.6 °C | +0.7 °C | 201 mm | +26 mm |
| Oct | 28.7 °C | +0.5 °C | 262 mm | +70 mm |
| Nov | 29.0 °C | +0.8 °C | 235 mm | +16 mm |
| Dec | 28.6 °C | +0.6 °C | 242 mm | -7 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 Sentani?
Sentani has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 26.0 °C and it receives 2,575 mm of precipitation per year.
What is the hottest day ever recorded in Sentani?
The hottest day measured in Sentani between 1940 and 2025 was 18 May 2020, reaching 31.1 °C.
What is the coldest day in Sentani?
The coldest day measured in Sentani between 1940 and 2025 was 22 July 1943, at 22.8 °C.
Does it snow in Sentani?
Almost never: Sentani sees virtually no snow, with about 0 frost days per year.
Has the climate of Sentani warmed?
Yes: Sentani warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Sentani?
The wettest day measured in Sentani between 1940 and 2025 was 10 August 2010, with 174 mm of rain in 24 hours.
What was the windiest day in Sentani?
The windiest day measured in Sentani between 1940 and 2025 was 13 April 2005, with winds reaching 35.1 km/h.
What is the warmest month in Sentani?
The warmest month in Sentani is May (26.2 °C on average); the coldest is July (25.7 °C).
How much does it rain in Sentani?
Sentani receives on average 2,575 mm of precipitation per year, spread over about 323 rainy days.
Is it sunny in Sentani?
Sentani gets on average 9.6 hours of sunshine per day, roughly 3,504 hours per year over 1940-2025.
Are there tropical nights in Sentani?
Yes: Sentani has on average 365 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Sentani?
In Sentani, between 1940 and 2025, the highest apparent temperature reached 38.8 °C on 21 October 2017, and the lowest was 24.5 °C on 29 June 1972.
Compare Sentani with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Sentani