Ibb climate — normals and trends
Ibb (Yemen) has a subtropical highland, dry winter climate (Cwb) under the Köppen-Geiger classification. Its mean annual temperature is 17.7 °C and it receives 880 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 June (20.1 °C on average) and the coldest is December (15.1 °C). Rainfall peaks in August.
Ibb averages 0 frost days, 2 hot days (≥ 30 °C) and 135 rainy days per year.
Ibb has warmed by +2.4 °C between 1940 and 2025, or +0.28 °C per decade. This trend is statistically significant.
The hottest day of the period reached 33.6 °C (on 11 June 2025) and the coldest 1.6 °C (on 20 January 1987).
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
IbbIbb Governorate
- coords
- 13.97°, 44.18°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
17.7°C
Average daily high
23.8°C
Average daily low
12.4°C
Annual rainfall
880mm
Sunshine / day
10.9h
Mean relative humidity
63%
Average peak wind
9.8km/h
Seasonal range
5.0°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
2 d/yr
Rainy days (≥ 1 mm)
135 d/yr
Annual snowfall
0.0 cm
Average feels-like high
23.9 °C
Average feels-like low
11.5 °C
Average peak gust
33.9 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
21.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.4 °C
since 1940
+0.3 °C per decade · r² = 0.79 · 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
33.6 °C
11 June 2025
Coldest day
1.6 °C
20 January 1987
Wettest day
103 mm
13 August 1977
Windiest day
26.9 km/h
26 June 1942
Strongest gust
79.9 km/h
26 June 1942
Hottest feels-like
32.6 °C
23 May 2025
Coldest feels-like
-3.0 °C
20 January 1987
Sunniest day
12.0 h
1 April 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 | 23.2 °C | +1.5 °C | 4 mm | -9 mm |
| Feb | 25.6 °C | +2.6 °C | 0 mm | -19 mm |
| Mar | 25.9 °C | +1.8 °C | 8 mm | -35 mm |
| Apr | 27.0 °C | +2.4 °C | 43 mm | -21 mm |
| May | 29.6 °C | +3.6 °C | 28 mm | -48 mm |
| Jun | 30.7 °C | +4.4 °C | 13 mm | -69 mm |
| Jul | 28.6 °C | +4.3 °C | 38 mm | -129 mm |
| Aug | 24.0 °C | +0.6 °C | 304 mm | +54 mm |
| Sep | 25.3 °C | +1.6 °C | 194 mm | +64 mm |
| Oct | 24.2 °C | +0.4 °C | 19 mm | -2 mm |
| Nov | 23.3 °C | +0.7 °C | 1 mm | -7 mm |
| Dec | 22.3 °C | +0.6 °C | 13 mm | +6 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 Ibb?
Ibb has a subtropical highland, dry winter climate (Köppen Cwb). Over 1940-2025, the average annual temperature is 17.7 °C and it receives 880 mm of precipitation per year.
What is the hottest day ever recorded in Ibb?
The hottest day measured in Ibb between 1940 and 2025 was 11 June 2025, reaching 33.6 °C.
What is the coldest day in Ibb?
The coldest day measured in Ibb between 1940 and 2025 was 20 January 1987, at 1.6 °C.
Does it snow in Ibb?
Almost never: Ibb sees virtually no snow, with about 0 frost days per year.
Has the climate of Ibb warmed?
Yes: Ibb warmed by +2.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Ibb?
The wettest day measured in Ibb between 1940 and 2025 was 13 August 1977, with 103 mm of rain in 24 hours.
What was the windiest day in Ibb?
The windiest day measured in Ibb between 1940 and 2025 was 26 June 1942, with winds reaching 26.9 km/h.
What is the warmest month in Ibb?
The warmest month in Ibb is June (20.1 °C on average); the coldest is December (15.1 °C).
How much does it rain in Ibb?
Ibb receives on average 880 mm of precipitation per year, spread over about 135 rainy days.
Is it sunny in Ibb?
Ibb gets on average 10.9 hours of sunshine per day, roughly 3,979 hours per year over 1940-2025.
Are there tropical nights in Ibb?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Ibb.
What was the most extreme apparent temperature in Ibb?
In Ibb, between 1940 and 2025, the highest apparent temperature reached 32.6 °C on 23 May 2025, and the lowest was -3.0 °C on 20 January 1987.
Compare Ibb with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Ibb