Tondano climate — normals and trends
Tondano (Indonesia) has a tropical rainforest climate (Af) under the Köppen-Geiger classification. Its mean annual temperature is 24.6 °C and it receives 2,590 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 April (24.9 °C on average) and the coldest is July (24.1 °C). Rainfall peaks in May.
Tondano averages 0 frost days, 0 hot days (≥ 30 °C) and 304 rainy days per year.
Tondano has warmed by +1.4 °C between 1940 and 2025, or +0.16 °C per decade. This trend is statistically significant.
The hottest day of the period reached 31.4 °C (on 8 April 2019) and the coldest 19.0 °C (on 3 September 1997).
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
TondanoNorth Sulawesi
- coords
- 1.31°, 124.91°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
24.6°C
Average daily high
27.1°C
Average daily low
23.0°C
Annual rainfall
2,590mm
Sunshine / day
10.6h
Mean relative humidity
87%
Average peak wind
12.1km/h
Seasonal range
0.8°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
304 d/yr
Annual snowfall
0.0 cm
Average feels-like high
32.5 °C
Average feels-like low
26.6 °C
Average peak gust
28.5 km/h
Tropical nights (≥ 20 °C)
365 d/yr
Solar radiation
20.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.4 °C
since 1940
+0.2 °C per decade · r² = 0.85 · 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
31.4 °C
8 April 2019
Coldest day
19.0 °C
3 September 1997
Wettest day
138 mm
16 February 1988
Windiest day
31.0 km/h
9 October 1978
Strongest gust
63.7 km/h
13 September 2019
Hottest feels-like
38.5 °C
16 December 2015
Coldest feels-like
19.4 °C
3 September 1997
Sunniest day
11.9 h
29 January 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 | 28.1 °C | +1.1 °C | 466 mm | +246 mm |
| Feb | 28.4 °C | +1.4 °C | 200 mm | -4 mm |
| Mar | 28.1 °C | +0.8 °C | 454 mm | +233 mm |
| Apr | 28.0 °C | +0.6 °C | 414 mm | +144 mm |
| May | 28.1 °C | +0.8 °C | 523 mm | +239 mm |
| Jun | 27.7 °C | +0.9 °C | 342 mm | +95 mm |
| Jul | 27.8 °C | +1.5 °C | 171 mm | -20 mm |
| Aug | 27.0 °C | +0.6 °C | 305 mm | +157 mm |
| Sep | 27.5 °C | +0.6 °C | 232 mm | +81 mm |
| Oct | 28.0 °C | +0.6 °C | 287 mm | +100 mm |
| Nov | 28.7 °C | +1.2 °C | 250 mm | +14 mm |
| Dec | 28.4 °C | +1.1 °C | 221 mm | -11 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 Tondano?
Tondano has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 24.6 °C and it receives 2,590 mm of precipitation per year.
What is the hottest day ever recorded in Tondano?
The hottest day measured in Tondano between 1940 and 2025 was 8 April 2019, reaching 31.4 °C.
What is the coldest day in Tondano?
The coldest day measured in Tondano between 1940 and 2025 was 3 September 1997, at 19.0 °C.
Does it snow in Tondano?
Almost never: Tondano sees virtually no snow, with about 0 frost days per year.
Has the climate of Tondano warmed?
Yes: Tondano warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Tondano?
The wettest day measured in Tondano between 1940 and 2025 was 16 February 1988, with 138 mm of rain in 24 hours.
What was the windiest day in Tondano?
The windiest day measured in Tondano between 1940 and 2025 was 9 October 1978, with winds reaching 31.0 km/h.
What is the warmest month in Tondano?
The warmest month in Tondano is April (24.9 °C on average); the coldest is July (24.1 °C).
How much does it rain in Tondano?
Tondano receives on average 2,590 mm of precipitation per year, spread over about 304 rainy days.
Is it sunny in Tondano?
Tondano gets on average 10.6 hours of sunshine per day, roughly 3,869 hours per year over 1940-2025.
Are there tropical nights in Tondano?
Yes: Tondano has on average 365 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Tondano?
In Tondano, between 1940 and 2025, the highest apparent temperature reached 38.5 °C on 16 December 2015, and the lowest was 19.4 °C on 3 September 1997.
Compare Tondano with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Tondano