Īz̄eh climate — normals and trends
Īz̄eh has a hot-summer mediterranean climate, averaging 20.6 °C annually with 689 mm of rain per year.
Climate normals · ERA5
Īz̄ehKhuzestan
- coords
- 31.83°, 49.87°
- period
- 1940–2025 · 86 yrs
The normals for this period
The average of every indicator across the whole window: temperature, water, sky, wind and notable days.
Mean daily temperature
20.6°C
Average daily high
27.0°C
Average daily low
13.6°C
Annual rainfall
689mm
Sunshine / day
10.8h
Mean relative humidity
43%
Average peak wind
11.3km/h
Seasonal range
26.5°C
Frost days (< 0 °C)
22 d/yr
Hot days (≥ 30 °C)
165 d/yr
Rainy days (≥ 1 mm)
59 d/yr
Annual snowfall
3.2 cm
Average feels-like high
25.6 °C
Average feels-like low
11.2 °C
Average peak gust
30.9 km/h
Tropical nights (≥ 20 °C)
110 d/yr
Solar radiation
20.2 MJ/m²
Has the climate changed?
What the yearly averages say about warming here, and whether the slope is statistically solid.
+2.2 °C
since 1940
+0.3 °C per decade · r² = 0.47 · 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).
Climate month by month
How an average year unfolds: when it rains, when it turns hot, when the sun is out.
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
The most extreme days ever measured here, then the year-by-year detail.
Hottest day
46.0 °C
9 July 2011
Coldest day
-15.6 °C
29 January 1950
Wettest day
145 mm
11 February 1980
Windiest day
31.4 km/h
20 February 2003
Strongest gust
103.0 km/h
26 March 2003
Hottest feels-like
46.5 °C
15 July 1967
Coldest feels-like
-20.1 °C
29 January 1950
Snowiest day
9.4 cm
13 January 1998
Sunniest day
13.2 h
28 June 1977
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and compare it with the normal: warmer, drier, more extreme?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 15.5 °C | +2.7 °C | 24 mm | -117 mm |
| Feb | 14.7 °C | 0.0 °C | 66 mm | -45 mm |
| Mar | 20.6 °C | +2.0 °C | 159 mm | +39 mm |
| Apr | 28.7 °C | +4.0 °C | 19 mm | -40 mm |
| May | 37.8 °C | +5.6 °C | 1 mm | -12 mm |
| Jun | 39.8 °C | +1.6 °C | 0 mm | -0 mm |
| Jul | 42.1 °C | +1.8 °C | 0 mm | -0 mm |
| Aug | 42.9 °C | +2.9 °C | 0 mm | -0 mm |
| Sep | 37.8 °C | +1.2 °C | 0 mm | -0 mm |
| Oct | 32.9 °C | +2.9 °C | 0 mm | -13 mm |
| Nov | 26.6 °C | +5.5 °C | 1 mm | -90 mm |
| Dec | 16.2 °C | +1.1 °C | 211 mm | +71 mm |
The year's extremes
What was the weather like that day?
The weather actually measured on a given date, anywhere in the covered window.
Climate at a glance
What these normals say about the place, in a few sentences, and the notions needed to read them.
Īz̄eh (Iran) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 20.6 °C and it receives 689 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 (33.6 °C on average) and the coldest is January (7.1 °C). Rainfall peaks in January.
Īz̄eh averages 22 frost days, 165 hot days (≥ 30 °C) and 59 rainy days per year.
Īz̄eh has warmed by +2.2 °C between 1940 and 2025, or +0.25 °C per decade. This trend is statistically significant.
The number of frost days there went from about 31 to 13 per year over the period.
The hottest day of the period reached 46.0 °C (on 9 July 2011) and the coldest -15.6 °C (on 29 January 1950).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Compare Īz̄eh with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Īz̄eh
Other cities — Iran
Frequently asked questions
What is the climate of Īz̄eh?
Īz̄eh has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 20.6 °C and it receives 689 mm of precipitation per year.
What is the hottest day ever recorded in Īz̄eh?
The hottest day measured in Īz̄eh between 1940 and 2025 was 9 July 2011, reaching 46.0 °C.
What is the coldest day in Īz̄eh?
The coldest day measured in Īz̄eh between 1940 and 2025 was 29 January 1950, at -15.6 °C.
Does it snow in Īz̄eh?
Yes. Īz̄eh gets on average 3.2 cm of snow per year and has around 22 frost days.
Has the climate of Īz̄eh warmed?
Yes: Īz̄eh warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Īz̄eh?
The wettest day measured in Īz̄eh between 1940 and 2025 was 11 February 1980, with 145 mm of rain in 24 hours.
What was the windiest day in Īz̄eh?
The windiest day measured in Īz̄eh between 1940 and 2025 was 20 February 2003, with winds reaching 31.4 km/h.
What is the warmest month in Īz̄eh?
The warmest month in Īz̄eh is July (33.6 °C on average); the coldest is January (7.1 °C).
How much does it rain in Īz̄eh?
Īz̄eh receives on average 689 mm of precipitation per year, spread over about 59 rainy days.
Is it sunny in Īz̄eh?
Īz̄eh gets on average 10.8 hours of sunshine per day, roughly 3,942 hours per year over 1940-2025.
What is the biggest single-day snowfall in Īz̄eh?
The heaviest 24-hour snowfall measured in Īz̄eh between 1940 and 2025 was 13 January 1998, with 9.4 cm.
Are there tropical nights in Īz̄eh?
Yes: Īz̄eh has on average 110 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Īz̄eh?
In Īz̄eh, between 1940 and 2025, the highest apparent temperature reached 46.5 °C on 15 July 1967, and the lowest was -20.1 °C on 29 January 1950.
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