Walvis Bay climate — normals and trends
Walvis Bay (Namibia) has a cold desert climate (BWk) under the Köppen-Geiger classification. Its mean annual temperature is 16.4 °C and it receives 19 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 February (18.3 °C on average) and the coldest is September (14.4 °C). Rainfall peaks in January.
Walvis Bay averages 0 frost days, 2 hot days (≥ 30 °C) and 3 rainy days per year.
Walvis Bay has warmed by +1.3 °C between 1940 and 2025, or +0.15 °C per decade. This trend is statistically significant.
The hottest day of the period reached 35.6 °C (on 13 March 1946) and the coldest 5.9 °C (on 13 July 1952).
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
Walvis BayErongo Region
- coords
- -22.96°, 14.51°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
16.4°C
Average daily high
19.0°C
Average daily low
14.0°C
Annual rainfall
19mm
Sunshine / day
11.3h
Mean relative humidity
76%
Average peak wind
24.8km/h
Seasonal range
3.9°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
2 d/yr
Rainy days (≥ 1 mm)
3 d/yr
Annual snowfall
0.0 cm
Average feels-like high
18.6 °C
Average feels-like low
12.9 °C
Average peak gust
35.5 km/h
Tropical nights (≥ 20 °C)
5 d/yr
Solar radiation
22.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.3 °C
since 1940
+0.2 °C per decade · r² = 0.46 · 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
35.6 °C
13 March 1946
Coldest day
5.9 °C
13 July 1952
Wettest day
38 mm
19 March 2025
Windiest day
57.3 km/h
8 October 2007
Strongest gust
82.8 km/h
8 October 2007
Hottest feels-like
35.7 °C
13 March 1946
Coldest feels-like
3.1 °C
3 July 1943
Sunniest day
13.4 h
20 December 2025
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 | 19.5 °C | -0.4 °C | 15 mm | +11 mm |
| Feb | 20.3 °C | -0.1 °C | 6 mm | +2 mm |
| Mar | 20.8 °C | +0.3 °C | 48 mm | +45 mm |
| Apr | 19.2 °C | -1.0 °C | 0 mm | -2 mm |
| May | 24.1 °C | +4.2 °C | 0 mm | -1 mm |
| Jun | 20.6 °C | +1.2 °C | 0 mm | -0 mm |
| Jul | 17.1 °C | -1.8 °C | 0 mm | -0 mm |
| Aug | 16.4 °C | -1.2 °C | 1 mm | +1 mm |
| Sep | 17.7 °C | +0.6 °C | 1 mm | +1 mm |
| Oct | 17.3 °C | 0.0 °C | 1 mm | +1 mm |
| Nov | 18.8 °C | +0.6 °C | 4 mm | +3 mm |
| Dec | 20.4 °C | +1.4 °C | 2 mm | +1 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 Walvis Bay?
Walvis Bay has a cold desert climate (Köppen BWk). Over 1940-2025, the average annual temperature is 16.4 °C and it receives 19 mm of precipitation per year.
What is the hottest day ever recorded in Walvis Bay?
The hottest day measured in Walvis Bay between 1940 and 2025 was 13 March 1946, reaching 35.6 °C.
What is the coldest day in Walvis Bay?
The coldest day measured in Walvis Bay between 1940 and 2025 was 13 July 1952, at 5.9 °C.
Does it snow in Walvis Bay?
Almost never: Walvis Bay sees virtually no snow, with about 0 frost days per year.
Has the climate of Walvis Bay warmed?
Yes: Walvis Bay warmed by +1.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Walvis Bay?
The wettest day measured in Walvis Bay between 1940 and 2025 was 19 March 2025, with 38 mm of rain in 24 hours.
What was the windiest day in Walvis Bay?
The windiest day measured in Walvis Bay between 1940 and 2025 was 8 October 2007, with winds reaching 57.3 km/h.
What is the warmest month in Walvis Bay?
The warmest month in Walvis Bay is February (18.3 °C on average); the coldest is September (14.4 °C).
How much does it rain in Walvis Bay?
Walvis Bay receives on average 19 mm of precipitation per year, spread over about 3 rainy days.
Is it sunny in Walvis Bay?
Walvis Bay gets on average 11.3 hours of sunshine per day, roughly 4,125 hours per year over 1940-2025.
Are there tropical nights in Walvis Bay?
Yes: Walvis Bay has on average 5 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Walvis Bay?
In Walvis Bay, between 1940 and 2025, the highest apparent temperature reached 35.7 °C on 13 March 1946, and the lowest was 3.1 °C on 3 July 1943.
Compare Walvis Bay with another city
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Nearby cities
The climate around Walvis Bay