Bou Ismaïl in Fall
In fall (September, October and November), Bou Ismaïl sees average daytime highs around 22°C and overnight lows near 19°C, with 171 mm of rain over about 22 wet days across the season. It is the 2nd-warmest season and the 2nd-wettest season.
Over the season highs ease from about 26°C in early September to 17°C by late November. The sky is clear or mostly clear about 54% of the time across fall, and the air most often feels humid.
Fall is Bou Ismaïl's 2nd-best season to visit on our travel score. For the whole year in context, see Bou Ismaïl's year-round climate.
- Avg daytime high
- 22°C
- 2nd-warmest season
- Avg overnight low
- 19°C
- Rainfall
- 171 mm
- 22 wet days
- Avg wind
- 15 km/h
- Travel score
- 7.2
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in Bou Ismaïl in Fall
Over the season highs ease from about 26°C in early September to 17°C by late November.
A typical fall day in Bou Ismaïl reaches about 22°C and drops to 19°C overnight. The warmest of the three months is September, the coolest November.
Bou Ismaïl 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 | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 15° / 12° | 88 | 10.5 | 9.8 | 4.6 |
| Feb | 15° / 12° | 68 | 9.4 | 10.6 | 4.6 |
| Mar | 16° / 13° | 57 | 7.7 | 11.7 | 5.4 |
| Apr | 17° / 15° | 55 | 7.7 | 12.9 | 6.2 |
| May | 20° / 17° | 38 | 4.8 | 13.9 | 7.4 |
| Jun | 23° / 20° | 6 | 1.1 | 14.5 | 8.9 |
| Jul | 25° / 23° | 1 | 0.1 | 14.2 | 9.3 |
| Aug | 26° / 24° | 5 | 1.1 | 13.4 | 8.8 |
| Sep | 25° / 22° | 22 | 4.5 | 12.2 | 8.2 |
| Oct | 22° / 19° | 53 | 6.5 | 11.1 | 7.5 |
| Nov | 18° / 16° | 96 | 11.4 | 10 | 6.0 |
| Dec | 16° / 13° | 83 | 10.3 | 9.5 | 5.2 |
Cloud cover in Fall
The sky is clear or mostly clear about 54% of the time across fall.
Chance of precipitation in Fall
Bou Ismaïl gets around 171 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 humid — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 15 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 Bou Ismaïl
In fall, Bou Ismaïl overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
Bou Ismaïl's rainy season runs October–April, when most of the year's rain falls.
Bou Ismaïl sees seasonal dust haze (June–July), heaviest in July.
Is fall a good time to visit Bou Ismaïl?
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 one of the better times to visit Bou Ismaïl for general sightseeing.
What to pack for Bou Ismaïl in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Bou Ismaïl sees daytime highs around 22°C and nights near 19°C. Worth packing: light clothes, rain gear and sun protection. About 22 days see rain.
Sea temperature near Bou Ismaïl in Fall
The nearest coast averages about 22°C across fall — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore is warmest in August at about 25°C and coldest in February near 15°C.
It's comfortable for a long swim from Jun 7 to Nov 4 — about 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 | 21 | 24 | 25 | 24 | 22 | 19 | 17 |
| Comfort | Cool | Cool | Cool | Cool | Cool | Refreshing | Refreshing | Warm | Warm | Refreshing | Cool | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 16 | Cool |
| Feb | 15 | Cool |
| Mar | 15 | Cool |
| Apr | 16 | Cool |
| May | 18 | Cool |
| Jun | 21 | Refreshing |
| Jul | 24 | Refreshing |
| Aug | 25 | Warm |
| Sep | 24 | Warm |
| Oct | 22 | Refreshing |
| Nov | 19 | Cool |
| Dec | 17 | Cool |
UV index in Bou Ismaïl 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 Bou Ismaïl peaks around July 18 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 2 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 3 | 6 | 7 | 8 | 8 | 9 | 8 | 7 | 5 | 3 | 2 |
| Level | Moderate | Moderate | High | High | Very high | Very high | Very high | Very high | High | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Moderate |
| Feb | 3 | Moderate |
| Mar | 6 | High |
| Apr | 7 | High |
| May | 8 | Very high |
| Jun | 8 | Very high |
| Jul | 9 | Very high |
| Aug | 8 | Very high |
| Sep | 7 | High |
| Oct | 5 | Moderate |
| Nov | 3 | Moderate |
| Dec | 2 | Low |
Air quality in Bou Ismaïl 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 Bou Ismaïl is worst in July — around 67 µg/m³ PM2.5 (unhealthy), about 1.7× the cleanest month (November, 40 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 43 | 51 | 59 | 58 | 56 | 55 | 67 | 61 | 48 | 52 | 40 | 47 |
| Level | Poor | Poor | Unhealthy | Unhealthy | Unhealthy | Poor | Unhealthy | Unhealthy | Poor | Poor | Poor | Poor |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 43 | Poor |
| Feb | 51 | Poor |
| Mar | 59 | Unhealthy |
| Apr | 58 | Unhealthy |
| May | 56 | Unhealthy |
| Jun | 55 | Poor |
| Jul | 67 | Unhealthy |
| Aug | 61 | Unhealthy |
| Sep | 48 | Poor |
| Oct | 52 | Poor |
| Nov | 40 | Poor |
| Dec | 47 | Poor |
Where is Bou Ismaïl?
Bou Ismaïl sits at 36.6°N, 2.7°E, 29 m above sea level, in Algeria. The nearest listed city is Kolea, 7.0 km away.
Topography around Bou Ismaïl
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Bou Ismaïl.
Within 3 km, the terrain around Bou Ismaïl has only modest variations in elevation — a maximum elevation change of 206 m around an average of 68 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 270 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,633 m.
The land around Bou Ismaïl is covered by water (42%) and artificial surfaces (25%) within 3 km, water (48%) and cropland (20%) within 16 km, and water (34%) and grassland (22%) 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 Bou Ismaïl (36.6426°, 2.6901°, elevation 29 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.