Osh climate — normals and trends
Osh (Kyrgyzstan) has a hot-summer mediterranean continental climate (Dsa) under the Köppen-Geiger classification. Its mean annual temperature is 11.1 °C and it receives 595 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 July (24.5 °C on average) and the coldest is January (-3.3 °C). Rainfall peaks in April.
Osh averages 109 frost days, 49 hot days (≥ 30 °C) and 105 rainy days per year.
Osh has warmed by +1.5 °C between 1940 and 2025, or +0.18 °C per decade. This trend is statistically significant.
The number of frost days there went from about 128 to 90 per year over the period.
The hottest day of the period reached 40.0 °C (on 1 August 1941) and the coldest -23.0 °C (on 14 January 2023).
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
OshOsh Region
- coords
- 40.53°, 72.80°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
11.1°C
Average daily high
16.8°C
Average daily low
6.0°C
Annual rainfall
595mm
Sunshine / day
9.6h
Mean relative humidity
60%
Average peak wind
8.9km/h
Seasonal range
27.8°C
Frost days (< 0 °C)
109 d/yr
Hot days (≥ 30 °C)
49 d/yr
Rainy days (≥ 1 mm)
105 d/yr
Annual snowfall
104.6 cm
Average feels-like high
15.2 °C
Average feels-like low
3.4 °C
Average peak gust
23.6 km/h
Tropical nights (≥ 20 °C)
7 d/yr
Solar radiation
16.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.5 °C
since 1940
+0.2 °C per decade · r² = 0.30 · 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
40.0 °C
1 August 1941
Coldest day
-23.0 °C
14 January 2023
Wettest day
46 mm
5 April 1979
Windiest day
28.5 km/h
12 March 2010
Strongest gust
82.8 km/h
12 March 2010
Hottest feels-like
40.0 °C
31 July 1983
Coldest feels-like
-27.6 °C
14 January 2023
Snowiest day
16.4 cm
27 January 2006
Sunniest day
14.2 h
24 June 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 | 3.1 °C | +1.5 °C | 31 mm | -5 mm |
| Feb | 6.2 °C | +2.3 °C | 35 mm | -19 mm |
| Mar | 12.3 °C | +2.0 °C | 83 mm | -3 mm |
| Apr | 20.1 °C | +2.6 °C | 97 mm | -6 mm |
| May | 26.1 °C | +3.4 °C | 44 mm | -35 mm |
| Jun | 29.6 °C | +1.5 °C | 10 mm | -22 mm |
| Jul | 32.2 °C | +1.3 °C | 8 mm | -8 mm |
| Aug | 30.4 °C | +0.8 °C | 10 mm | -4 mm |
| Sep | 26.6 °C | +1.5 °C | 13 mm | -8 mm |
| Oct | 20.6 °C | +2.7 °C | 19 mm | -37 mm |
| Nov | 13.5 °C | +3.6 °C | 15 mm | -39 mm |
| Dec | 6.6 °C | +2.9 °C | 103 mm | +58 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 Osh?
Osh has a hot-summer mediterranean continental climate (Köppen Dsa). Over 1940-2025, the average annual temperature is 11.1 °C and it receives 595 mm of precipitation per year.
What is the hottest day ever recorded in Osh?
The hottest day measured in Osh between 1940 and 2025 was 1 August 1941, reaching 40.0 °C.
What is the coldest day in Osh?
The coldest day measured in Osh between 1940 and 2025 was 14 January 2023, at -23.0 °C.
Does it snow in Osh?
Yes. Osh gets on average 104.6 cm of snow per year and has around 109 frost days.
Has the climate of Osh warmed?
Yes: Osh warmed by +1.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Osh?
The wettest day measured in Osh between 1940 and 2025 was 5 April 1979, with 46 mm of rain in 24 hours.
What was the windiest day in Osh?
The windiest day measured in Osh between 1940 and 2025 was 12 March 2010, with winds reaching 28.5 km/h.
What is the warmest month in Osh?
The warmest month in Osh is July (24.5 °C on average); the coldest is January (-3.3 °C).
How much does it rain in Osh?
Osh receives on average 595 mm of precipitation per year, spread over about 105 rainy days.
Is it sunny in Osh?
Osh gets on average 9.6 hours of sunshine per day, roughly 3,504 hours per year over 1940-2025.
What is the biggest single-day snowfall in Osh?
The heaviest 24-hour snowfall measured in Osh between 1940 and 2025 was 27 January 2006, with 16.4 cm.
Are there tropical nights in Osh?
Yes: Osh has on average 7 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Osh?
In Osh, between 1940 and 2025, the highest apparent temperature reached 40.0 °C on 31 July 1983, and the lowest was -27.6 °C on 14 January 2023.
Compare Osh with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Osh