Isoka climate — normals and trends
Isoka (Zambia) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 21.3 °C and it receives 1,146 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 October (24.9 °C on average) and the coldest is July (18.0 °C). Rainfall peaks in January.
Isoka averages 0 frost days, 79 hot days (≥ 30 °C) and 141 rainy days per year.
Isoka has warmed by +1.6 °C between 1940 and 2025, or +0.19 °C per decade. This trend is statistically significant.
The hottest day of the period reached 38.0 °C (on 18 October 2017) and the coldest 6.3 °C (on 23 July 1986).
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
IsokaMuchinga
- coords
- -10.16°, 32.63°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
21.3°C
Average daily high
27.3°C
Average daily low
16.0°C
Annual rainfall
1,146mm
Sunshine / day
10.4h
Mean relative humidity
68%
Average peak wind
10.4km/h
Seasonal range
6.9°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
79 d/yr
Rainy days (≥ 1 mm)
141 d/yr
Annual snowfall
0.0 cm
Average feels-like high
29.0 °C
Average feels-like low
16.6 °C
Average peak gust
29.3 km/h
Tropical nights (≥ 20 °C)
15 d/yr
Solar radiation
20.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.6 °C
since 1940
+0.2 °C per decade · r² = 0.61 · 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
38.0 °C
18 October 2017
Coldest day
6.3 °C
23 July 1986
Wettest day
104 mm
23 February 2022
Windiest day
24.3 km/h
16 May 1944
Strongest gust
67.7 km/h
13 February 2007
Hottest feels-like
38.8 °C
28 December 1987
Coldest feels-like
3.3 °C
26 July 1975
Sunniest day
12.6 h
5 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 | 27.2 °C | +0.8 °C | 241 mm | -34 mm |
| Feb | 28.0 °C | +1.5 °C | 186 mm | -63 mm |
| Mar | 26.6 °C | +0.5 °C | 190 mm | -23 mm |
| Apr | 26.8 °C | +1.3 °C | 101 mm | -7 mm |
| May | 24.6 °C | -0.6 °C | 63 mm | +46 mm |
| Jun | 25.5 °C | +0.9 °C | 2 mm | +1 mm |
| Jul | 24.5 °C | -0.2 °C | 0 mm | -0 mm |
| Aug | 27.3 °C | +0.1 °C | 0 mm | -0 mm |
| Sep | 31.6 °C | +1.3 °C | 0 mm | -2 mm |
| Oct | 32.6 °C | +0.4 °C | 1 mm | -9 mm |
| Nov | 30.5 °C | -0.5 °C | 126 mm | +58 mm |
| Dec | 28.2 °C | +0.3 °C | 201 mm | -5 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 Isoka?
Isoka has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 21.3 °C and it receives 1,146 mm of precipitation per year.
What is the hottest day ever recorded in Isoka?
The hottest day measured in Isoka between 1940 and 2025 was 18 October 2017, reaching 38.0 °C.
What is the coldest day in Isoka?
The coldest day measured in Isoka between 1940 and 2025 was 23 July 1986, at 6.3 °C.
Does it snow in Isoka?
Almost never: Isoka sees virtually no snow, with about 0 frost days per year.
Has the climate of Isoka warmed?
Yes: Isoka warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Isoka?
The wettest day measured in Isoka between 1940 and 2025 was 23 February 2022, with 104 mm of rain in 24 hours.
What was the windiest day in Isoka?
The windiest day measured in Isoka between 1940 and 2025 was 16 May 1944, with winds reaching 24.3 km/h.
What is the warmest month in Isoka?
The warmest month in Isoka is October (24.9 °C on average); the coldest is July (18.0 °C).
How much does it rain in Isoka?
Isoka receives on average 1,146 mm of precipitation per year, spread over about 141 rainy days.
Is it sunny in Isoka?
Isoka gets on average 10.4 hours of sunshine per day, roughly 3,796 hours per year over 1940-2025.
Are there tropical nights in Isoka?
Yes: Isoka has on average 15 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Isoka?
In Isoka, between 1940 and 2025, the highest apparent temperature reached 38.8 °C on 28 December 1987, and the lowest was 3.3 °C on 26 July 1975.
Compare Isoka with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Isoka