Wembesi climate — normals and trends
Wembesi (South Africa) has a subtropical highland, dry winter climate (Cwb) under the Köppen-Geiger classification. Its mean annual temperature is 15.2 °C and it receives 959 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 January (19.8 °C on average) and the coldest is June (8.7 °C). Rainfall peaks in January.
Wembesi averages 11 frost days, 20 hot days (≥ 30 °C) and 139 rainy days per year.
Wembesi has warmed by +1.8 °C between 1940 and 2025, or +0.22 °C per decade. This trend is statistically significant.
The number of frost days there went from about 16 to 6 per year over the period.
The hottest day of the period reached 37.5 °C (on 6 January 2016) and the coldest -5.2 °C (on 26 June 1992).
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
WembesiKwaZulu-Natal
- coords
- -29.05°, 29.78°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
15.2°C
Average daily high
22.3°C
Average daily low
9.7°C
Annual rainfall
959mm
Sunshine / day
10.0h
Mean relative humidity
69%
Average peak wind
12.4km/h
Seasonal range
11.1°C
Frost days (< 0 °C)
11 d/yr
Hot days (≥ 30 °C)
20 d/yr
Rainy days (≥ 1 mm)
139 d/yr
Annual snowfall
1.1 cm
Average feels-like high
21.9 °C
Average feels-like low
8.5 °C
Average peak gust
30.3 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
18.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.8 °C
since 1940
+0.2 °C per decade · r² = 0.59 · 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
37.5 °C
6 January 2016
Coldest day
-5.2 °C
26 June 1992
Wettest day
87 mm
11 February 1996
Windiest day
42.3 km/h
20 October 1947
Strongest gust
94.3 km/h
19 October 1945
Hottest feels-like
39.8 °C
6 January 2016
Coldest feels-like
-8.8 °C
26 June 1992
Snowiest day
9.9 cm
27 June 2007
Sunniest day
13.9 h
25 December 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 | 27.1 °C | +1.3 °C | 155 mm | -7 mm |
| Feb | 25.6 °C | +0.2 °C | 137 mm | -7 mm |
| Mar | 25.4 °C | +0.9 °C | 176 mm | +57 mm |
| Apr | 21.4 °C | -0.7 °C | 180 mm | +118 mm |
| May | 21.5 °C | +1.7 °C | 6 mm | -15 mm |
| Jun | 18.5 °C | +1.2 °C | 18 mm | +5 mm |
| Jul | 18.5 °C | +1.2 °C | 21 mm | +8 mm |
| Aug | 22.1 °C | +2.5 °C | 9 mm | -15 mm |
| Sep | 23.0 °C | +0.6 °C | 59 mm | +20 mm |
| Oct | 24.3 °C | +0.9 °C | 68 mm | -16 mm |
| Nov | 23.8 °C | -0.4 °C | 124 mm | +4 mm |
| Dec | 25.7 °C | +0.3 °C | 239 mm | +80 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 Wembesi?
Wembesi has a subtropical highland, dry winter climate (Köppen Cwb). Over 1940-2025, the average annual temperature is 15.2 °C and it receives 959 mm of precipitation per year.
What is the hottest day ever recorded in Wembesi?
The hottest day measured in Wembesi between 1940 and 2025 was 6 January 2016, reaching 37.5 °C.
What is the coldest day in Wembesi?
The coldest day measured in Wembesi between 1940 and 2025 was 26 June 1992, at -5.2 °C.
Does it snow in Wembesi?
Yes. Wembesi gets on average 1.1 cm of snow per year and has around 11 frost days.
Has the climate of Wembesi warmed?
Yes: Wembesi warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Wembesi?
The wettest day measured in Wembesi between 1940 and 2025 was 11 February 1996, with 87 mm of rain in 24 hours.
What was the windiest day in Wembesi?
The windiest day measured in Wembesi between 1940 and 2025 was 20 October 1947, with winds reaching 42.3 km/h.
What is the warmest month in Wembesi?
The warmest month in Wembesi is January (19.8 °C on average); the coldest is June (8.7 °C).
How much does it rain in Wembesi?
Wembesi receives on average 959 mm of precipitation per year, spread over about 139 rainy days.
Is it sunny in Wembesi?
Wembesi gets on average 10.0 hours of sunshine per day, roughly 3,650 hours per year over 1940-2025.
What is the biggest single-day snowfall in Wembesi?
The heaviest 24-hour snowfall measured in Wembesi between 1940 and 2025 was 27 June 2007, with 9.9 cm.
Are there tropical nights in Wembesi?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Wembesi.
What was the most extreme apparent temperature in Wembesi?
In Wembesi, between 1940 and 2025, the highest apparent temperature reached 39.8 °C on 6 January 2016, and the lowest was -8.8 °C on 26 June 1992.
Compare Wembesi with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Wembesi