Warrenton climate — normals and trends
Warrenton (South Africa) has a hot semi-arid climate (BSh) under the Köppen-Geiger classification. Its mean annual temperature is 18.4 °C and it receives 455 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 (25.0 °C on average) and the coldest is June (10.0 °C). Rainfall peaks in January.
Warrenton averages 14 frost days, 127 hot days (≥ 30 °C) and 75 rainy days per year.
No statistically significant temperature trend emerges for Warrenton between 1940 and 2025: over this span, year-to-year swings outweigh the climate signal.
The hottest day of the period reached 42.8 °C (on 6 January 2016) and the coldest -6.6 °C (on 15 July 2021).
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
WarrentonNorthern Cape
- coords
- -28.11°, 24.85°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
18.4°C
Average daily high
26.9°C
Average daily low
11.5°C
Annual rainfall
455mm
Sunshine / day
11.2h
Mean relative humidity
51%
Average peak wind
16.0km/h
Seasonal range
15.0°C
Frost days (< 0 °C)
14 d/yr
Hot days (≥ 30 °C)
127 d/yr
Rainy days (≥ 1 mm)
75 d/yr
Annual snowfall
0.0 cm
Average feels-like high
25.7 °C
Average feels-like low
9.4 °C
Average peak gust
35.7 km/h
Tropical nights (≥ 20 °C)
20 d/yr
Solar radiation
21.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
No clear trend over this period
Over a short window, year-to-year swings outweigh the climate signal. Try 86 years.
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
42.8 °C
6 January 2016
Coldest day
-6.6 °C
15 July 2021
Wettest day
95 mm
31 December 1943
Windiest day
44.3 km/h
10 November 1950
Strongest gust
92.9 km/h
14 September 1988
Hottest feels-like
42.7 °C
6 January 2016
Coldest feels-like
-10.3 °C
15 July 2021
Snowiest day
0.3 cm
28 June 1994
Sunniest day
13.7 h
1 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 | 35.3 °C | +3.0 °C | 19 mm | -56 mm |
| Feb | 32.0 °C | +0.9 °C | 75 mm | +0 mm |
| Mar | 29.3 °C | -0.1 °C | 61 mm | +1 mm |
| Apr | 24.0 °C | -2.0 °C | 127 mm | +83 mm |
| May | 22.9 °C | +0.2 °C | 1 mm | -13 mm |
| Jun | 20.5 °C | +1.0 °C | 2 mm | -6 mm |
| Jul | 21.5 °C | +1.7 °C | 2 mm | -3 mm |
| Aug | 24.9 °C | +2.3 °C | 15 mm | +7 mm |
| Sep | 28.5 °C | +1.6 °C | 33 mm | +20 mm |
| Oct | 29.5 °C | 0.0 °C | 55 mm | +20 mm |
| Nov | 29.3 °C | -1.6 °C | 84 mm | +32 mm |
| Dec | 31.5 °C | -0.8 °C | 71 mm | +6 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 Warrenton?
Warrenton has a hot semi-arid climate (Köppen BSh). Over 1940-2025, the average annual temperature is 18.4 °C and it receives 455 mm of precipitation per year.
What is the hottest day ever recorded in Warrenton?
The hottest day measured in Warrenton between 1940 and 2025 was 6 January 2016, reaching 42.8 °C.
What is the coldest day in Warrenton?
The coldest day measured in Warrenton between 1940 and 2025 was 15 July 2021, at -6.6 °C.
Does it snow in Warrenton?
Almost never: Warrenton sees virtually no snow, with about 14 frost days per year.
Has the climate of Warrenton warmed?
Between 1940 and 2025, no statistically significant temperature trend emerges in Warrenton.
What is the wettest day in Warrenton?
The wettest day measured in Warrenton between 1940 and 2025 was 31 December 1943, with 95 mm of rain in 24 hours.
What was the windiest day in Warrenton?
The windiest day measured in Warrenton between 1940 and 2025 was 10 November 1950, with winds reaching 44.3 km/h.
What is the warmest month in Warrenton?
The warmest month in Warrenton is January (25.0 °C on average); the coldest is June (10.0 °C).
How much does it rain in Warrenton?
Warrenton receives on average 455 mm of precipitation per year, spread over about 75 rainy days.
Is it sunny in Warrenton?
Warrenton gets on average 11.2 hours of sunshine per day, roughly 4,088 hours per year over 1940-2025.
What is the biggest single-day snowfall in Warrenton?
The heaviest 24-hour snowfall measured in Warrenton between 1940 and 2025 was 28 June 1994, with 0.3 cm.
Are there tropical nights in Warrenton?
Yes: Warrenton has on average 20 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Warrenton?
In Warrenton, between 1940 and 2025, the highest apparent temperature reached 42.7 °C on 6 January 2016, and the lowest was -10.3 °C on 15 July 2021.
Compare Warrenton with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Warrenton