Constantine in Fall
In fall (September, October and November), Constantine sees average daytime highs around 23°C and overnight lows near 12°C, with 105 mm of rain over about 22 wet days across the season. It is the 2nd-warmest season and the 3rd-wettest season.
Over the season highs ease from about 31°C in early September to 15°C by late November. The sky is clear or mostly clear about 41% of the time across fall, and the air most often feels dry.
Fall is Constantine's best season of the year to visit on our travel score. For the whole year in context, see Constantine's year-round climate.
- Avg daytime high
- 23°C
- 2nd-warmest season
- Avg overnight low
- 12°C
- Rainfall
- 105 mm
- 22 wet days
- Avg wind
- 7 km/h
- Travel score
- 6.5
- best season of the year
- Months
- Sep · Oct · Nov
Temperature in Constantine in Fall
Over the season highs ease from about 31°C in early September to 15°C by late November.
A typical fall day in Constantine reaches about 23°C and drops to 12°C overnight. The warmest of the three months is September, the coolest November.
How fall really feels in Constantine
Once humidity and wind are folded in, fall brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
fall sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Constantine weather by month
How the three fall months (September, October and November) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 12° / 3° | 45 | 8.5 | 1.2 | 9.8 | 3.5 |
| Feb | 13° / 3° | 41 | 8.3 | 1.2 | 10.6 | 3.9 |
| Mar | 16° / 5° | 50 | 9.1 | 0.5 | 11.7 | 5.4 |
| Apr | 20° / 8° | 53 | 9.4 | 0.2 | 12.9 | 6.4 |
| May | 25° / 12° | 48 | 7.9 | 0 | 13.9 | 7.4 |
| Jun | 30° / 17° | 19 | 5.4 | 0 | 14.4 | 5.8 |
| Jul | 34° / 20° | 9 | 3.3 | 0 | 14.2 | 3.7 |
| Aug | 34° / 20° | 19 | 5.3 | 0 | 13.4 | 3.8 |
| Sep | 29° / 17° | 31 | 8 | 0 | 12.2 | 6.1 |
| Oct | 24° / 12° | 36 | 7.5 | 0 | 11.1 | 7.4 |
| Nov | 17° / 8° | 38 | 6.7 | 0 | 10.1 | 6.0 |
| Dec | 13° / 4° | 44 | 7.5 | 0.5 | 9.6 | 4.1 |
Cloud cover in Fall
The sky is clear or mostly clear about 41% of the time across fall.
Chance of precipitation in Fall
Constantine gets around 105 mm of rain over 22 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 7 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 48 min in early September to 9 h 42 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 4.0 kWh/m².
Hazard calendar for Constantine
None of Constantine's seasonal hazards peak in fall. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do.
Constantine sees seasonal dust haze (June–July), heaviest in June.
Is fall a good time to visit Constantine?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is a reasonable time to visit Constantine for sightseeing.
What to pack for Constantine in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Constantine sees daytime highs around 23°C and nights near 12°C. Pack light clothes. Worth having: a warm layer, rain gear and sun protection. About 22 days see rain.
Sea temperature near Constantine in Fall
The nearest coast averages about 23°C across fall — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 61 km away) is warmest in August at about 26°C and coldest in February near 15°C.
It's comfortable for a long swim from Jun 2 to Nov 15 — about 5.5 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 16 | 15 | 15 | 16 | 18 | 22 | 24 | 26 | 25 | 23 | 20 | 17 |
| Comfort | Cool | Cool | Cool | Cool | Cool | Refreshing | Warm | Warm | Warm | Refreshing | Refreshing | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 16 | Cool |
| Feb | 15 | Cool |
| Mar | 15 | Cool |
| Apr | 16 | Cool |
| May | 18 | Cool |
| Jun | 22 | Refreshing |
| Jul | 24 | Warm |
| Aug | 26 | Warm |
| Sep | 25 | Warm |
| Oct | 23 | Refreshing |
| Nov | 20 | Refreshing |
| Dec | 17 | Cool |
UV index in Constantine in Fall
Clear-sky midday UV across fall averages around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Constantine peaks around July 15 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 2 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 4 | 6 | 7 | 7 | 8 | 10 | 8 | 8 | 6 | 3 | 2 |
| Level | Moderate | Moderate | High | High | Very high | Very high | Very high | Very high | Very high | High | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Moderate |
| Feb | 4 | Moderate |
| Mar | 6 | High |
| Apr | 7 | High |
| May | 7 | Very high |
| Jun | 8 | Very high |
| Jul | 10 | Very high |
| Aug | 8 | Very high |
| Sep | 8 | Very high |
| Oct | 6 | High |
| Nov | 3 | Moderate |
| Dec | 2 | Low |
Air quality in Constantine in Fall
Average fine-particle pollution (PM2.5) through the year — so you can see where fall falls, not just the annual average.
Air quality in Constantine is worst in October — around 36 µg/m³ PM2.5 (poor), and holds fairly steady the rest of the year.
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 31 | 32 | 33 | 36 | 33 | 32 | 30 | 32 | 36 | 36 | 32 | 32 |
| Level | Moderate | Moderate | Moderate | Poor | Moderate | Moderate | Moderate | Moderate | Poor | Poor | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 31 | Moderate |
| Feb | 32 | Moderate |
| Mar | 33 | Moderate |
| Apr | 36 | Poor |
| May | 33 | Moderate |
| Jun | 32 | Moderate |
| Jul | 30 | Moderate |
| Aug | 32 | Moderate |
| Sep | 36 | Poor |
| Oct | 36 | Poor |
| Nov | 32 | Moderate |
| Dec | 32 | Moderate |
Where is Constantine?
Constantine sits at 36.4°N, 6.6°E, 574 m above sea level, in Algeria. The nearest listed city is Hamma Bouziane, 5.0 km away.
Topography around Constantine
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Constantine.
Within 3 km, the terrain around Constantine has significant variations in elevation — a maximum elevation change of 443 m around an average of 566 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,019 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,697 m.
The land around Constantine is covered by artificial surfaces (47%), grassland (23%) and trees (21%) within 3 km, cropland (49%) and grassland (31%) within 16 km, and cropland (43%) and grassland (27%) within 80 km.
Algeria travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / F
- 230 V · 50 Hz
- Prices
- ≈ 33% of US
- price level, 2025
- GDP per capita
- $6,051
- 2025
- Happiness
- 5.7 / 10
- World Happiness, 2025
- Safe drinking water
- 69%
- of population, 2024
- Homicide rate
- 1.2
- per 100k, 2023
- Road deaths
- 20.9
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Low
- EF EPI 468
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Constantine (36.365°, 6.6147°, elevation 574 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.