Hengchun climate — normals and trends
Hengchun (Taiwan) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 24.6 °C and it receives 1,627 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 July (27.5 °C on average) and the coldest is January (20.6 °C). Rainfall peaks in August.
Hengchun averages 0 frost days, 1 hot days (≥ 30 °C) and 140 rainy days per year.
Hengchun has warmed by +1.0 °C between 1940 and 2025, or +0.12 °C per decade. This trend is statistically significant.
The hottest day of the period reached 31.2 °C (on 22 July 2024) and the coldest 14.0 °C (on 16 January 1967).
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
HengchunTaiwan
- coords
- 22.00°, 120.74°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
24.6°C
Average daily high
25.3°C
Average daily low
23.8°C
Annual rainfall
1,627mm
Sunshine / day
10.1h
Mean relative humidity
80%
Average peak wind
33.2km/h
Seasonal range
6.9°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
1 d/yr
Rainy days (≥ 1 mm)
140 d/yr
Annual snowfall
0.0 cm
Average feels-like high
27.4 °C
Average feels-like low
23.7 °C
Average peak gust
47.2 km/h
Tropical nights (≥ 20 °C)
320 d/yr
Solar radiation
18.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.0 °C
since 1940
+0.1 °C per decade · r² = 0.50 · 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
31.2 °C
22 July 2024
Coldest day
14.0 °C
16 January 1967
Wettest day
317 mm
14 July 1961
Windiest day
108.0 km/h
21 September 2013
Strongest gust
171.7 km/h
21 September 2013
Hottest feels-like
39.8 °C
13 July 2020
Coldest feels-like
6.7 °C
16 January 1967
Sunniest day
13.3 h
23 June 1972
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 | 20.8 °C | -0.6 °C | 60 mm | +17 mm |
| Feb | 21.6 °C | -0.4 °C | 78 mm | +44 mm |
| Mar | 23.7 °C | +0.3 °C | 36 mm | +5 mm |
| Apr | 25.7 °C | +0.5 °C | 23 mm | -20 mm |
| May | 27.7 °C | +0.8 °C | 119 mm | -31 mm |
| Jun | 28.7 °C | +0.9 °C | 332 mm | +41 mm |
| Jul | 28.4 °C | +0.2 °C | 786 mm | +499 mm |
| Aug | 28.6 °C | +0.6 °C | 280 mm | -34 mm |
| Sep | 28.8 °C | +1.1 °C | 345 mm | +129 mm |
| Oct | 28.2 °C | +1.8 °C | 55 mm | -52 mm |
| Nov | 25.4 °C | +0.9 °C | 96 mm | +29 mm |
| Dec | 23.5 °C | +1.1 °C | 49 mm | +5 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 Hengchun?
Hengchun has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 24.6 °C and it receives 1,627 mm of precipitation per year.
What is the hottest day ever recorded in Hengchun?
The hottest day measured in Hengchun between 1940 and 2025 was 22 July 2024, reaching 31.2 °C.
What is the coldest day in Hengchun?
The coldest day measured in Hengchun between 1940 and 2025 was 16 January 1967, at 14.0 °C.
Does it snow in Hengchun?
Almost never: Hengchun sees virtually no snow, with about 0 frost days per year.
Has the climate of Hengchun warmed?
Yes: Hengchun warmed by +1.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Hengchun?
The wettest day measured in Hengchun between 1940 and 2025 was 14 July 1961, with 317 mm of rain in 24 hours.
What was the windiest day in Hengchun?
The windiest day measured in Hengchun between 1940 and 2025 was 21 September 2013, with winds reaching 108.0 km/h.
What is the warmest month in Hengchun?
The warmest month in Hengchun is July (27.5 °C on average); the coldest is January (20.6 °C).
How much does it rain in Hengchun?
Hengchun receives on average 1,627 mm of precipitation per year, spread over about 140 rainy days.
Is it sunny in Hengchun?
Hengchun gets on average 10.1 hours of sunshine per day, roughly 3,687 hours per year over 1940-2025.
Are there tropical nights in Hengchun?
Yes: Hengchun has on average 320 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Hengchun?
In Hengchun, between 1940 and 2025, the highest apparent temperature reached 39.8 °C on 13 July 2020, and the lowest was 6.7 °C on 16 January 1967.
Compare Hengchun with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Hengchun