Monthly climate guide
Constantine weather in September
With highs near 30°C (87°F) and lows around 17°C (63°F), September feels hot in Constantine. Rainfall averages about 44 mm (fairly dry) and the sky is a mix of sun and cloud. Daytime highs are 5°C cooler than August and 5°C warmer than October.
What stands out in September
- Temperatures are falling — expect highs around 5°C lower by October.
- Constantine is usually about 2°C warmer than Tébessa, 170 km away, in September.
- September brings early autumn to Constantine.
- Expect a big gap between day and night — about 13°C.
Avg high
30°C
87°F
Avg low
17°C
63°F
Rainfall
44 mm
fairly dry
Humidity
63%
relative
Sky
39%
cloud · a mix of sun and cloud
Constantine weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 13°C / 56°F | 4°C / 39°F | 83 mm | 81% | 53% |
| February | 14°C / 57°F | 4°C / 38°F | 88 mm | 78% | 52% |
| March | 17°C / 63°F | 6°C / 42°F | 87 mm | 76% | 52% |
| April | 22°C / 71°F | 9°C / 47°F | 55 mm | 72% | 45% |
| May | 26°C / 78°F | 12°C / 53°F | 48 mm | 65% | 40% |
| June | 32°C / 89°F | 16°C / 61°F | 18 mm | 55% | 26% |
| July | 36°C / 97°F | 20°C / 68°F | 6 mm | 45% | 19% |
| August | 36°C / 96°F | 20°C / 69°F | 30 mm | 48% | 22% |
| September | 30°C / 87°F | 17°C / 63°F | 44 mm | 63% | 39% |
| October | 26°C / 78°F | 13°C / 56°F | 78 mm | 67% | 37% |
| November | 19°C / 66°F | 9°C / 47°F | 86 mm | 74% | 49% |
| December | 15°C / 58°F | 5°C / 41°F | 73 mm | 81% | 48% |
What to pack for September
- Light, breathable clothing (cotton or linen)
- A sun hat and high-SPF sunscreen
- A refillable water bottle
- An extra layer — evenings are noticeably cooler than afternoons
- A small travel umbrella, just in case
- Sunglasses
Is September a good time to visit Constantine?
Compare the months in the chart above to find your ideal window.
Best time to visit Constantine →Other Algeria cities in September
Cite or embed this data
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Constantine weather in September. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/algeria/constantine/september
<a href="https://weathercompare.eu/weather/algeria/constantine/september">Constantine weather in September</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/algeria/constantine" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Constantine weather in September"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/algeria/constantine/september">Constantine weather in September</a> – WeatherCompare</p>
Constantine in September: quick answers
Is September a good time to visit Constantine?
September is a reasonable time for Constantine: highs around 30°C and about 44 mm of rain, though not one of the three best months.
How warm is Constantine in September?
Average highs are about 30°C (87°F) and average lows about 17°C (63°F), based on 10 years of daily data.
Does it rain a lot in Constantine in September?
Constantine typically gets around 44 mm of rain in September — fairly dry.
Figures are long-term averages for the area around Constantine (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.