Nasiriyah climate — normals and trends
Nasiriyah (Iraq) has a hot desert climate (BWh) under the Köppen-Geiger classification. Its mean annual temperature is 26.1 °C and it receives 104 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 (38.5 °C on average) and the coldest is January (12.0 °C). Rainfall peaks in January.
Nasiriyah averages 1 frost days, 214 hot days (≥ 30 °C) and 19 rainy days per year.
Nasiriyah has warmed by +2.6 °C between 1940 and 2025, or +0.31 °C per decade. This trend is statistically significant.
The number of frost days there went from about 2 to 0 per year over the period.
The hottest day of the period reached 52.5 °C (on 30 July 2020) and the coldest -5.6 °C (on 20 January 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
NasiriyahDhi Qar
- coords
- 31.06°, 46.26°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.1°C
Average daily high
32.8°C
Average daily low
19.5°C
Annual rainfall
104mm
Sunshine / day
11.2h
Mean relative humidity
33%
Average peak wind
22.8km/h
Seasonal range
26.5°C
Frost days (< 0 °C)
1 d/yr
Hot days (≥ 30 °C)
214 d/yr
Rainy days (≥ 1 mm)
19 d/yr
Annual snowfall
0.0 cm
Average feels-like high
30.0 °C
Average feels-like low
16.4 °C
Average peak gust
37.6 km/h
Tropical nights (≥ 20 °C)
186 d/yr
Solar radiation
20.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.6 °C
since 1940
+0.3 °C per decade · r² = 0.50 · 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
52.5 °C
30 July 2020
Coldest day
-5.6 °C
20 January 1964
Wettest day
52 mm
19 November 2013
Windiest day
54.3 km/h
4 June 1956
Strongest gust
90.7 km/h
25 March 2003
Hottest feels-like
53.7 °C
29 July 2020
Coldest feels-like
-11.8 °C
20 January 1964
Sunniest day
13.8 h
23 June 1949
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 | 19.4 °C | +1.7 °C | 9 mm | -11 mm |
| Feb | 19.1 °C | -1.8 °C | 5 mm | -9 mm |
| Mar | 26.5 °C | +0.4 °C | 44 mm | +29 mm |
| Apr | 35.1 °C | +2.5 °C | 1 mm | -10 mm |
| May | 42.5 °C | +3.4 °C | 2 mm | -1 mm |
| Jun | 45.2 °C | +1.6 °C | 0 mm | -0 mm |
| Jul | 47.0 °C | +1.5 °C | 0 mm | 0 mm |
| Aug | 47.5 °C | +2.1 °C | 0 mm | 0 mm |
| Sep | 42.5 °C | +0.3 °C | 0 mm | -0 mm |
| Oct | 36.7 °C | +1.2 °C | 0 mm | -4 mm |
| Nov | 29.2 °C | +3.3 °C | 1 mm | -17 mm |
| Dec | 20.1 °C | +0.8 °C | 32 mm | +13 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 Nasiriyah?
Nasiriyah has a hot desert climate (Köppen BWh). Over 1940-2025, the average annual temperature is 26.1 °C and it receives 104 mm of precipitation per year.
What is the hottest day ever recorded in Nasiriyah?
The hottest day measured in Nasiriyah between 1940 and 2025 was 30 July 2020, reaching 52.5 °C.
What is the coldest day in Nasiriyah?
The coldest day measured in Nasiriyah between 1940 and 2025 was 20 January 1964, at -5.6 °C.
Does it snow in Nasiriyah?
Almost never: Nasiriyah sees virtually no snow, with about 1 frost days per year.
Has the climate of Nasiriyah warmed?
Yes: Nasiriyah warmed by +2.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Nasiriyah?
The wettest day measured in Nasiriyah between 1940 and 2025 was 19 November 2013, with 52 mm of rain in 24 hours.
What was the windiest day in Nasiriyah?
The windiest day measured in Nasiriyah between 1940 and 2025 was 4 June 1956, with winds reaching 54.3 km/h.
What is the warmest month in Nasiriyah?
The warmest month in Nasiriyah is July (38.5 °C on average); the coldest is January (12.0 °C).
How much does it rain in Nasiriyah?
Nasiriyah receives on average 104 mm of precipitation per year, spread over about 19 rainy days.
Is it sunny in Nasiriyah?
Nasiriyah gets on average 11.2 hours of sunshine per day, roughly 4,088 hours per year over 1940-2025.
Are there tropical nights in Nasiriyah?
Yes: Nasiriyah has on average 186 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Nasiriyah?
In Nasiriyah, between 1940 and 2025, the highest apparent temperature reached 53.7 °C on 29 July 2020, and the lowest was -11.8 °C on 20 January 1964.
Compare Nasiriyah with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Nasiriyah