Weather in Constantine in September 2025
Average weather
Average temperature in Constantine in September
The temperature in September is +31°C on average, with a range between a maximum of +38°C during the day and a minimum of +12°C at night.
The average maximum temperature goes down 23% by the end of the month, compared with the beginning of the month, from +33°C to +27°C.
Is Constantine warm or cold in September?
Constantine is typically warm in September.
Maximum temperatures go down compared to the previous month from +33°C to +28°C. The minimum temperature also goes down from +20°C to +17°C.
It’s generally warm, but pack a long-sleeve shirt for evenings.
Take a look at how September is compared to other months in Constantine:
Climate in Constantine in September
| August | September | October | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +33°C | +28°C | +24°C | ||||
| Min. temperature | ||||||
| +12°C | +9°C | +4°C | ||||
| Max. temperature | ||||||
| +43°C | +40°C | +36°C | ||||
| Rainfall | ||||||
| 20 mm | 38 mm | 41 mm | ||||
| Wind | ||||||
| 1 m/s | 1 m/s | 1 m/s | ||||
| Humidity | ||||||
| 56% | 66% | 69% | ||||
| Air pressure | ||||||
| 1015 HPa | 1016 HPa | 1017 HPa | ||||
| Sunny days | ||||||
| 15 | 9 | 9 | ||||
| Cloudy days | ||||||
| 3 | 5 | 9 | ||||
| Rainy days | ||||||
| 10 | 13 | 12 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
September typically has worse weather conditions compared to August. It’s getting colder in September. From +33°C in the day, the average maximum temperature lowers to +28°C. Prepare for more rain. Average rainfall goes from 20 mm to 38 mm. Humidity rises from 56% to 66%. The average wind speed doesn’t change much during September, staying around 1 m/s. The days becoming less sunny, going from 15 sunny days in August to 9 in September.
October brings much the same weather, it remains good.
Wind
The average wind speed is 2 m/s getting up to 5 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Constantine is gradually decreasing during September, going from 2 m/s to 1 m/s over the course of the month.
Rain
How was the weather last September in Constantine?
Climate Change over Years
The climate in Constantine in September has not changed much over the last 43 years.
The average temperature was the lowest in 1991 (+20°C) and the highest in 2022 (+24°C). The driest year was 1983 with only 274 mm of rainfall, and the wettest year was 2004 with 766 mm.
FAQ
Is September a good time to visit Constantine?
Can you sunbathe in Constantine in September?
Is Constantine rainy in September?
Is it sunny in Constantine in September?
Other cities in Algeria
Monthly weather in Constantine
Source of the data
For this page, we’ve looked at the typical weather in Constantine, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.