Ottosdal climate — normals and trends
Ottosdal (South Africa) has a cold semi-arid climate (BSk) under the Köppen-Geiger classification. Its mean annual temperature is 17.0 °C and it receives 579 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 (22.1 °C on average) and the coldest is June (9.7 °C). Rainfall peaks in January.
Ottosdal averages 7 frost days, 46 hot days (≥ 30 °C) and 94 rainy days per year.
Ottosdal has warmed by +0.6 °C between 1940 and 2025, or +0.07 °C per decade. This trend is statistically significant.
The hottest day of the period reached 38.5 °C (on 6 January 2016) and the coldest -5.7 °C (on 9 July 2024).
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
OttosdalNorth West
- coords
- -26.81°, 26.01°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
17.0°C
Average daily high
24.2°C
Average daily low
11.3°C
Annual rainfall
579mm
Sunshine / day
11.1h
Mean relative humidity
55%
Average peak wind
18.4km/h
Seasonal range
12.4°C
Frost days (< 0 °C)
7 d/yr
Hot days (≥ 30 °C)
46 d/yr
Rainy days (≥ 1 mm)
94 d/yr
Annual snowfall
0.0 cm
Average feels-like high
22.8 °C
Average feels-like low
8.9 °C
Average peak gust
37.6 km/h
Tropical nights (≥ 20 °C)
4 d/yr
Solar radiation
20.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.6 °C
since 1940
+0.1 °C per decade · r² = 0.06 · p = 0.027
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
38.5 °C
6 January 2016
Coldest day
-5.7 °C
9 July 2024
Wettest day
73 mm
18 February 2025
Windiest day
49.6 km/h
8 April 2024
Strongest gust
94.7 km/h
8 April 2024
Hottest feels-like
38.2 °C
7 December 2015
Coldest feels-like
-10.0 °C
9 July 2024
Snowiest day
0.8 cm
7 July 1996
Sunniest day
13.7 h
10 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 | 28.7 °C | +0.5 °C | 105 mm | +1 mm |
| Feb | 27.2 °C | 0.0 °C | 190 mm | +93 mm |
| Mar | 25.2 °C | -0.8 °C | 112 mm | +40 mm |
| Apr | 21.9 °C | -1.5 °C | 132 mm | +85 mm |
| May | 21.1 °C | +0.3 °C | 1 mm | -16 mm |
| Jun | 18.8 °C | +0.9 °C | 4 mm | -4 mm |
| Jul | 19.2 °C | +1.1 °C | 6 mm | +1 mm |
| Aug | 23.4 °C | +2.3 °C | 2 mm | -6 mm |
| Sep | 26.9 °C | +1.9 °C | 21 mm | +4 mm |
| Oct | 27.1 °C | +0.2 °C | 68 mm | +21 mm |
| Nov | 25.3 °C | -2.2 °C | 122 mm | +53 mm |
| Dec | 26.9 °C | -1.3 °C | 107 mm | +18 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 Ottosdal?
Ottosdal has a cold semi-arid climate (Köppen BSk). Over 1940-2025, the average annual temperature is 17.0 °C and it receives 579 mm of precipitation per year.
What is the hottest day ever recorded in Ottosdal?
The hottest day measured in Ottosdal between 1940 and 2025 was 6 January 2016, reaching 38.5 °C.
What is the coldest day in Ottosdal?
The coldest day measured in Ottosdal between 1940 and 2025 was 9 July 2024, at -5.7 °C.
Does it snow in Ottosdal?
Almost never: Ottosdal sees virtually no snow, with about 7 frost days per year.
Has the climate of Ottosdal warmed?
Yes: Ottosdal warmed by +0.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Ottosdal?
The wettest day measured in Ottosdal between 1940 and 2025 was 18 February 2025, with 73 mm of rain in 24 hours.
What was the windiest day in Ottosdal?
The windiest day measured in Ottosdal between 1940 and 2025 was 8 April 2024, with winds reaching 49.6 km/h.
What is the warmest month in Ottosdal?
The warmest month in Ottosdal is January (22.1 °C on average); the coldest is June (9.7 °C).
How much does it rain in Ottosdal?
Ottosdal receives on average 579 mm of precipitation per year, spread over about 94 rainy days.
Is it sunny in Ottosdal?
Ottosdal gets on average 11.1 hours of sunshine per day, roughly 4,052 hours per year over 1940-2025.
What is the biggest single-day snowfall in Ottosdal?
The heaviest 24-hour snowfall measured in Ottosdal between 1940 and 2025 was 7 July 1996, with 0.8 cm.
Are there tropical nights in Ottosdal?
Yes: Ottosdal has on average 4 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Ottosdal?
In Ottosdal, between 1940 and 2025, the highest apparent temperature reached 38.2 °C on 7 December 2015, and the lowest was -10.0 °C on 9 July 2024.
Compare Ottosdal with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Ottosdal