Midstream climate — normals and trends
Midstream (South Africa) has a subtropical highland, dry winter climate (Cwb) under the Köppen-Geiger classification. Its mean annual temperature is 16.4 °C and it receives 704 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 (20.4 °C on average) and the coldest is June (10.0 °C). Rainfall peaks in December.
Midstream averages 2 frost days, 17 hot days (≥ 30 °C) and 104 rainy days per year.
Midstream has warmed by +1.4 °C between 1940 and 2025, or +0.16 °C per decade. This trend is statistically significant.
The hottest day of the period reached 37.0 °C (on 6 January 2016) and the coldest -3.7 °C (on 28 June 1964).
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
MidstreamGauteng
- coords
- -25.92°, 28.20°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
16.4°C
Average daily high
23.0°C
Average daily low
11.2°C
Annual rainfall
704mm
Sunshine / day
10.7h
Mean relative humidity
61%
Average peak wind
17.3km/h
Seasonal range
10.4°C
Frost days (< 0 °C)
2 d/yr
Hot days (≥ 30 °C)
17 d/yr
Rainy days (≥ 1 mm)
104 d/yr
Annual snowfall
0.2 cm
Average feels-like high
22.0 °C
Average feels-like low
9.1 °C
Average peak gust
35.3 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
20.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.4 °C
since 1940
+0.2 °C per decade · r² = 0.34 · 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
37.0 °C
6 January 2016
Coldest day
-3.7 °C
28 June 1964
Wettest day
96 mm
19 February 2025
Windiest day
46.4 km/h
19 October 1945
Strongest gust
91.4 km/h
28 September 2012
Hottest feels-like
36.7 °C
6 January 2016
Coldest feels-like
-8.3 °C
12 July 1985
Snowiest day
10.6 cm
10 September 1981
Sunniest day
13.6 h
16 December 2025
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 | 26.2 °C | +0.3 °C | 262 mm | +144 mm |
| Feb | 25.3 °C | -0.2 °C | 306 mm | +200 mm |
| Mar | 24.3 °C | -0.2 °C | 143 mm | +63 mm |
| Apr | 21.0 °C | -1.4 °C | 118 mm | +69 mm |
| May | 20.4 °C | +0.1 °C | 7 mm | -10 mm |
| Jun | 18.4 °C | +0.6 °C | 2 mm | -5 mm |
| Jul | 18.4 °C | +0.3 °C | 6 mm | +2 mm |
| Aug | 22.7 °C | +1.8 °C | 15 mm | +7 mm |
| Sep | 25.9 °C | +1.4 °C | 39 mm | +16 mm |
| Oct | 25.6 °C | -0.1 °C | 66 mm | +1 mm |
| Nov | 22.8 °C | -2.5 °C | 209 mm | +106 mm |
| Dec | 24.4 °C | -1.2 °C | 155 mm | +29 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 Midstream?
Midstream has a subtropical highland, dry winter climate (Köppen Cwb). Over 1940-2025, the average annual temperature is 16.4 °C and it receives 704 mm of precipitation per year.
What is the hottest day ever recorded in Midstream?
The hottest day measured in Midstream between 1940 and 2025 was 6 January 2016, reaching 37.0 °C.
What is the coldest day in Midstream?
The coldest day measured in Midstream between 1940 and 2025 was 28 June 1964, at -3.7 °C.
Does it snow in Midstream?
Almost never: Midstream sees virtually no snow, with about 2 frost days per year.
Has the climate of Midstream warmed?
Yes: Midstream warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Midstream?
The wettest day measured in Midstream between 1940 and 2025 was 19 February 2025, with 96 mm of rain in 24 hours.
What was the windiest day in Midstream?
The windiest day measured in Midstream between 1940 and 2025 was 19 October 1945, with winds reaching 46.4 km/h.
What is the warmest month in Midstream?
The warmest month in Midstream is January (20.4 °C on average); the coldest is June (10.0 °C).
How much does it rain in Midstream?
Midstream receives on average 704 mm of precipitation per year, spread over about 104 rainy days.
Is it sunny in Midstream?
Midstream gets on average 10.7 hours of sunshine per day, roughly 3,905 hours per year over 1940-2025.
What is the biggest single-day snowfall in Midstream?
The heaviest 24-hour snowfall measured in Midstream between 1940 and 2025 was 10 September 1981, with 10.6 cm.
Are there tropical nights in Midstream?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Midstream.
What was the most extreme apparent temperature in Midstream?
In Midstream, between 1940 and 2025, the highest apparent temperature reached 36.7 °C on 6 January 2016, and the lowest was -8.3 °C on 12 July 1985.
Compare Midstream with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Midstream