Keelung climate — normals and trends
Keelung (Taiwan) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 22.0 °C and it receives 1,944 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 (27.7 °C on average) and the coldest is January (15.8 °C). Rainfall peaks in November.
Keelung averages 0 frost days, 5 hot days (≥ 30 °C) and 192 rainy days per year.
Keelung has warmed by +1.1 °C between 1940 and 2025, or +0.13 °C per decade. This trend is statistically significant.
The hottest day of the period reached 32.7 °C (on 17 August 1954) and the coldest 5.4 °C (on 24 January 2016).
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
KeelungTaiwan
- coords
- 25.13°, 121.74°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
22.0°C
Average daily high
23.1°C
Average daily low
21.0°C
Annual rainfall
1,944mm
Sunshine / day
8.1h
Mean relative humidity
81%
Average peak wind
25.7km/h
Seasonal range
11.9°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
5 d/yr
Rainy days (≥ 1 mm)
192 d/yr
Annual snowfall
0.0 cm
Average feels-like high
25.1 °C
Average feels-like low
21.1 °C
Average peak gust
38.9 km/h
Tropical nights (≥ 20 °C)
216 d/yr
Solar radiation
14.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.1 °C
since 1940
+0.1 °C per decade · r² = 0.51 · 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
32.7 °C
17 August 1954
Coldest day
5.4 °C
24 January 2016
Wettest day
251 mm
23 October 2009
Windiest day
108.9 km/h
8 August 2015
Strongest gust
177.1 km/h
8 August 2015
Hottest feels-like
41.1 °C
21 July 2022
Coldest feels-like
-2.2 °C
24 January 2016
Snowiest day
0.1 cm
24 January 2016
Sunniest day
13.6 h
27 June 1941
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 | 16.9 °C | -0.1 °C | 68 mm | -98 mm |
| Feb | 17.4 °C | -0.1 °C | 208 mm | +32 mm |
| Mar | 19.7 °C | +0.3 °C | 212 mm | +61 mm |
| Apr | 23.0 °C | +0.8 °C | 140 mm | +18 mm |
| May | 25.9 °C | +0.9 °C | 226 mm | +67 mm |
| Jun | 28.6 °C | +1.3 °C | 74 mm | -81 mm |
| Jul | 28.8 °C | +0.1 °C | 322 mm | +223 mm |
| Aug | 29.2 °C | +0.7 °C | 31 mm | -125 mm |
| Sep | 29.2 °C | +2.1 °C | 52 mm | -133 mm |
| Oct | 27.2 °C | +2.8 °C | 397 mm | +200 mm |
| Nov | 22.9 °C | +1.1 °C | 300 mm | +101 mm |
| Dec | 20.1 °C | +1.3 °C | 187 mm | +8 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 Keelung?
Keelung has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 22.0 °C and it receives 1,944 mm of precipitation per year.
What is the hottest day ever recorded in Keelung?
The hottest day measured in Keelung between 1940 and 2025 was 17 August 1954, reaching 32.7 °C.
What is the coldest day in Keelung?
The coldest day measured in Keelung between 1940 and 2025 was 24 January 2016, at 5.4 °C.
Does it snow in Keelung?
Almost never: Keelung sees virtually no snow, with about 0 frost days per year.
Has the climate of Keelung warmed?
Yes: Keelung warmed by +1.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Keelung?
The wettest day measured in Keelung between 1940 and 2025 was 23 October 2009, with 251 mm of rain in 24 hours.
What was the windiest day in Keelung?
The windiest day measured in Keelung between 1940 and 2025 was 8 August 2015, with winds reaching 108.9 km/h.
What is the warmest month in Keelung?
The warmest month in Keelung is July (27.7 °C on average); the coldest is January (15.8 °C).
How much does it rain in Keelung?
Keelung receives on average 1,944 mm of precipitation per year, spread over about 192 rainy days.
Is it sunny in Keelung?
Keelung gets on average 8.1 hours of sunshine per day, roughly 2,957 hours per year over 1940-2025.
What is the biggest single-day snowfall in Keelung?
The heaviest 24-hour snowfall measured in Keelung between 1940 and 2025 was 24 January 2016, with 0.1 cm.
Are there tropical nights in Keelung?
Yes: Keelung has on average 216 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Keelung?
In Keelung, between 1940 and 2025, the highest apparent temperature reached 41.1 °C on 21 July 2022, and the lowest was -2.2 °C on 24 January 2016.
Compare Keelung with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Keelung