Aïn Oussera in Fall
In fall (September, October and November), Aïn Oussera sees average daytime highs around 24°C and overnight lows near 12°C, with 63 mm of rain over about 13 wet days across the season. It is the 2nd-warmest season and the 2nd-wettest season.
Over the season highs ease from about 33°C in early September to 15°C by late November. The sky is clear or mostly clear about 50% of the time across fall, and the air most often feels dry.
Fall is Aïn Oussera's 2nd-best season to visit on our travel score. For the whole year in context, see Aïn Oussera's year-round climate.
- Avg daytime high
- 24°C
- 2nd-warmest season
- Avg overnight low
- 12°C
- Rainfall
- 63 mm
- 13 wet days
- Avg wind
- 10 km/h
- Travel score
- 6.7
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in Aïn Oussera in Fall
Over the season highs ease from about 33°C in early September to 15°C by late November.
A typical fall day in Aïn Oussera reaches about 24°C and drops to 12°C overnight. The warmest of the three months is September, the coolest November.
How fall really feels in Aïn Oussera
Once humidity and wind are folded in, fall brings about 8 days that feel above 32°C and 0 that feel at or below 0°C.
The story in fall is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Aïn Oussera 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 | 12° / 3° | 21 | 4.9 | 9.9 | 3.8 |
| Feb | 14° / 3° | 18 | 4.8 | 10.7 | 4.8 |
| Mar | 18° / 6° | 24 | 4.6 | 11.7 | 6.8 |
| Apr | 22° / 9° | 27 | 5.1 | 12.9 | 7.6 |
| May | 27° / 14° | 25 | 4.6 | 13.8 | 7.3 |
| Jun | 33° / 19° | 10 | 2.1 | 14.3 | 4.2 |
| Jul | 37° / 23° | 4 | 1.2 | 14.2 | 1.7 |
| Aug | 36° / 22° | 7 | 1.7 | 13.3 | 2.4 |
| Sep | 30° / 17° | 22 | 4.1 | 12.2 | 5.8 |
| Oct | 24° / 13° | 23 | 4.3 | 11.1 | 7.9 |
| Nov | 17° / 7° | 19 | 4.3 | 10.1 | 6.3 |
| Dec | 13° / 4° | 20 | 4.6 | 9.6 | 4.3 |
Cloud cover in Fall
The sky is clear or mostly clear about 50% of the time across fall.
Chance of precipitation in Fall
Aïn Oussera gets around 63 mm of rain over 13 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 10 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 48 min in early September to 9 h 48 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 4.4 kWh/m².
Hazard calendar for Aïn Oussera
In fall, Aïn Oussera overlaps its dust season. The full year is below, with each hazard's peak months called out.
Aïn Oussera sees seasonal dust haze (April–September), heaviest in July.
Is fall a good time to visit Aïn Oussera?
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 Aïn Oussera for sightseeing.
What to pack for Aïn Oussera in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Aïn Oussera sees daytime highs around 24°C and nights near 12°C. Pack light clothes. Worth having: a warm layer and sun protection. About 13 days see rain.
UV index in Aïn Oussera in Fall
Clear-sky midday UV across fall averages around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Aïn Oussera peaks around June 22 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 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) | 3 | 4 | 7 | 8 | 8 | 10 | 10 | 9 | 8 | 5 | 4 | 2 |
| Level | Moderate | Moderate | High | Very high | Very high | Very high | Very high | Very high | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 3 | Moderate |
| Feb | 4 | Moderate |
| Mar | 7 | High |
| Apr | 8 | Very high |
| May | 8 | Very high |
| Jun | 10 | Very high |
| Jul | 10 | Very high |
| Aug | 9 | Very high |
| Sep | 8 | Very high |
| Oct | 5 | High |
| Nov | 4 | Moderate |
| Dec | 2 | Moderate |
Air quality in Aïn Oussera 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 Aïn Oussera is worst in September — around 31 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (December, 14 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) | 14 | 18 | 25 | 28 | 27 | 30 | 29 | 29 | 31 | 22 | 15 | 14 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 14 | Moderate |
| Feb | 18 | Moderate |
| Mar | 25 | Moderate |
| Apr | 28 | Moderate |
| May | 27 | Moderate |
| Jun | 30 | Moderate |
| Jul | 29 | Moderate |
| Aug | 29 | Moderate |
| Sep | 31 | Moderate |
| Oct | 22 | Moderate |
| Nov | 15 | Moderate |
| Dec | 14 | Moderate |
Where is Aïn Oussera?
Aïn Oussera sits at 35.5°N, 2.9°E, 685 m above sea level, in Algeria. The nearest listed city is Birine, 35 km away.
Topography around Aïn Oussera
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Aïn Oussera.
Within 3 km, the terrain around Aïn Oussera has only modest variations in elevation — a maximum elevation change of 60 m around an average of 688 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 177 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,364 m.
The land around Aïn Oussera is covered by bare terrain (46%) and artificial surfaces (29%) within 3 km, bare terrain (44%), grassland (28%) and cropland (26%) within 16 km, and grassland (36%), bare terrain (35%) and cropland (25%) 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 Aïn Oussera (35.4514°, 2.9058°, elevation 685 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.