Guelma climate — normals and trends
Guelma (Algeria) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 16.8 °C and it receives 578 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 August (26.2 °C on average) and the coldest is January (8.7 °C). Rainfall peaks in March.
Guelma averages 4 frost days, 84 hot days (≥ 30 °C) and 98 rainy days per year.
Guelma has warmed by +2.9 °C between 1940 and 2025, or +0.34 °C per decade. This trend is statistically significant.
The number of frost days there went from about 8 to 0 per year over the period.
The hottest day of the period reached 45.9 °C (on 24 July 2023) and the coldest -7.3 °C (on 2 February 1999).
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
GuelmaGuelma Province
- coords
- 36.46°, 7.43°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
16.8°C
Average daily high
22.7°C
Average daily low
11.4°C
Annual rainfall
578mm
Sunshine / day
10.3h
Mean relative humidity
69%
Average peak wind
13.0km/h
Seasonal range
17.5°C
Frost days (< 0 °C)
4 d/yr
Hot days (≥ 30 °C)
84 d/yr
Rainy days (≥ 1 mm)
98 d/yr
Annual snowfall
1.9 cm
Average feels-like high
22.4 °C
Average feels-like low
10.4 °C
Average peak gust
34.0 km/h
Tropical nights (≥ 20 °C)
33 d/yr
Solar radiation
17.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.9 °C
since 1940
+0.3 °C per decade · r² = 0.74 · 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
45.9 °C
24 July 2023
Coldest day
-7.3 °C
2 February 1999
Wettest day
65 mm
15 April 1979
Windiest day
39.5 km/h
9 February 1984
Strongest gust
104.8 km/h
8 February 1996
Hottest feels-like
47.1 °C
27 June 2024
Coldest feels-like
-11.7 °C
2 February 1999
Snowiest day
5.6 cm
2 February 1954
Sunniest day
13.9 h
29 June 1944
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 | 15.9 °C | +2.3 °C | 89 mm | +23 mm |
| Feb | 16.3 °C | +1.7 °C | 42 mm | -20 mm |
| Mar | 19.8 °C | +2.8 °C | 57 mm | -15 mm |
| Apr | 21.6 °C | +1.8 °C | 88 mm | +19 mm |
| May | 24.9 °C | +0.6 °C | 81 mm | +30 mm |
| Jun | 33.8 °C | +4.5 °C | 3 mm | -18 mm |
| Jul | 34.5 °C | +1.2 °C | 5 mm | -1 mm |
| Aug | 34.3 °C | +0.8 °C | 5 mm | -10 mm |
| Sep | 31.2 °C | +1.8 °C | 67 mm | +26 mm |
| Oct | 25.4 °C | +1.1 °C | 49 mm | -7 mm |
| Nov | 19.6 °C | +0.9 °C | 38 mm | -20 mm |
| Dec | 15.9 °C | +1.2 °C | 40 mm | -23 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 Guelma?
Guelma has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 16.8 °C and it receives 578 mm of precipitation per year.
What is the hottest day ever recorded in Guelma?
The hottest day measured in Guelma between 1940 and 2025 was 24 July 2023, reaching 45.9 °C.
What is the coldest day in Guelma?
The coldest day measured in Guelma between 1940 and 2025 was 2 February 1999, at -7.3 °C.
Does it snow in Guelma?
Yes. Guelma gets on average 1.9 cm of snow per year and has around 4 frost days.
Has the climate of Guelma warmed?
Yes: Guelma warmed by +2.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Guelma?
The wettest day measured in Guelma between 1940 and 2025 was 15 April 1979, with 65 mm of rain in 24 hours.
What was the windiest day in Guelma?
The windiest day measured in Guelma between 1940 and 2025 was 9 February 1984, with winds reaching 39.5 km/h.
What is the warmest month in Guelma?
The warmest month in Guelma is August (26.2 °C on average); the coldest is January (8.7 °C).
How much does it rain in Guelma?
Guelma receives on average 578 mm of precipitation per year, spread over about 98 rainy days.
Is it sunny in Guelma?
Guelma gets on average 10.3 hours of sunshine per day, roughly 3,760 hours per year over 1940-2025.
What is the biggest single-day snowfall in Guelma?
The heaviest 24-hour snowfall measured in Guelma between 1940 and 2025 was 2 February 1954, with 5.6 cm.
Are there tropical nights in Guelma?
Yes: Guelma has on average 33 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Guelma?
In Guelma, between 1940 and 2025, the highest apparent temperature reached 47.1 °C on 27 June 2024, and the lowest was -11.7 °C on 2 February 1999.
Compare Guelma with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Guelma