Birine weather in September

In September, Birine sees average daytime highs of 29°C and overnight lows near 17°C, with 27 mm of rain across 5.8 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 32°C in the first days to 27°C by the end. The sky is clear or mostly clear about 54% of the time in September, and the air most often feels dry.

Daylight stretches from about 12 h 48 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is Birine's 4th-clearest and 11th-windiest month. For the whole year in context, see Birine's year-round climate.

Daytime high
29°
4th warmest
Overnight low
17°
9th coldest
Rainfall
27 mm
5.8 wet days
Daylight
12 h 12 min
6:35 AM – 6:48 PM
Cloud cover
40%
4th clearest
Wind
9 km/h
11th windiest
Solar energy
5.57 kWh/m²
Travel score
6.2
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 32°C in the first days to 27°C by the end.

A typical September day in Birine reaches about 29°C in the afternoon and slips back to 17°C overnight — a 13°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 34°C. Set against its neighbours, September runs about 6°C cooler than August and about 6°C warmer than October.

10°20°30°40°151015202530
Avg high (°C)Avg low (°C)
13319
23219
33219
43219
53219
63118
73118
83118
93118
103018
113017
123017
133017
143017
152917
162917
172916
182916
192816
202816
212816
222816
232816
242715
252715
262715
272715
282715
292615
302614

How September really feels in Birine

Once humidity and wind are folded in, September averages 3 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
3
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Birine weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan11° / 266.10.39.93.2
Feb13° / 235.70.510.74.1
Mar17° / 296.10.111.76.1
Apr21° / 346.3012.97.1
May26° / 13°315.5013.97.5
Jun32° / 18°133.1014.44.8
Jul36° / 22°61.9014.22.4
Aug35° / 21°113.5013.32.9
Sep29° / 17°275.8012.26.2
Oct23° / 12°284.9011.17.8
Nov16° / 245.1010.15.8
Dec12° / 245.30.29.63.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 54% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 20% of September, with mostly cloudy or overcast conditions the remaining 27%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18119
28119
38020
47822
57822
67723
77723
87624
97525
107525
117426
127327
137426
147327
157327
167228
177228
187129
197129
207129
217030
227030
236931
246931
256931
266931
276931
286931
296931
306931

Chance of precipitation in September

Any precipitation

Birine gets around 27 mm of rain over 5.8 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 19% and peaks near 20% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
116
217
317
418
518
619
719
819
920
1020
1120
1220
1320
1420
1520
1620
1720
1820
1920
2019
2119
2219
2319
2418
2518
2618
2717
2817
2917
3016

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the dry band about 67% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
165278
265278
364279
464279
564279
6632710
7642610
8632611
9642511
10642412
11642412
12652312
13652312
14662212
15662212
16672112
17672112
18672112
19682111
20682111
21692110
2270219
2369229
2470228
2571227
2672226
2773225
2873225
2974224
3075223

Wind in September

Winds average 9 km/h in September.

Across September, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 48 min at the start of September to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 66 minutes over September. Sunrise moves from 6:23 AM to 6:46 AM, and sunset from 7:11 PM to 6:27 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.86:237:11
212.86:247:09
312.76:257:08
412.76:257:06
512.66:267:05
612.66:277:03
712.66:287:02
812.56:297:00
912.56:296:59
1012.56:306:57
1112.46:316:56
1212.46:326:54
1312.36:326:53
1412.36:336:51
1512.36:346:50
1612.26:356:48
1712.26:366:47
1812.16:366:45
1912.16:376:43
2012.16:386:42
2112.06:396:40
2212.06:396:39
2312.06:406:37
2411.96:416:36
2511.96:426:34
2611.86:436:33
2711.86:436:31
2811.86:446:30
2911.76:456:28
3011.76:466:27

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.57 kWh/m².

For context, solar energy here swings from a low near 2.46 kWh/m² to a high of 7.66 kWh/m² in July across the year — September's 5.57 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.3Intense
26.2Intense
36.2Intense
46.1Intense
56.1Intense
66.0Intense
76.0Intense
86.0Bright
95.9Bright
105.8Bright
115.8Bright
125.8Bright
135.7Bright
145.7Bright
155.6Bright
165.6Bright
175.5Bright
185.5Bright
195.4Bright
205.4Bright
215.3Bright
225.3Bright
235.2Bright
245.2Bright
255.1Bright
265.1Bright
275.1Bright
285.0Bright
295.0Bright
304.9Bright
Planning a trip in September

Hazard calendar for Birine

In seasonPeak

None of Birine's seasonal hazards are active in September. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Birine sees seasonal dust haze (June–July), heaviest in July.

Dust
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is September a good time to visit Birine?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.2
Sightseeing
4th-best month of the year
7.6
Beach & pool
2nd-best month of the year

September is a reasonable time to visit Birine for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Birine in September

From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In September, Birine sees daytime highs around 29°C and nights near 17°C. Pack light clothes. Worth having: sun protection. About 6 days see rain.

light clothessun protection

UV index in Birine in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Birine peaks around June 23 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJun 23UV 10Dec 19UV 2
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar7High
Apr8Very high
May8Very high
Jun10Very high
Jul10Very high
Aug9Very high
Sep8Very high
Oct5High
Nov4Moderate
Dec2Moderate

Air quality in Birine in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Birine is worst in July — around 41 µg/m³ PM2.5 (poor), and holds fairly steady the rest of the year.

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateJul 2041 µg/m³Nov 1929 µg/m³
PM2.5 (µg/m³)Level
Jan31Moderate
Feb31Moderate
Mar34Moderate
Apr33Moderate
May31Moderate
Jun32Moderate
Jul41Poor
Aug37Poor
Sep38Poor
Oct34Moderate
Nov29Moderate
Dec31Moderate
Location & terrain

Where is Birine?

Birine sits at 35.6°N, 3.2°E, 736 m above sea level, in Algeria. The nearest listed city is Aïn Oussera, 35 km away.

Topography around Birine

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Birine.

Within 3 km, the terrain around Birine has only modest variations in elevation — a maximum elevation change of 112 m around an average of 751 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 211 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,423 m.

The land around Birine is covered by grassland (42%) and cropland (32%) within 3 km, cropland (48%) and grassland (35%) within 16 km, and grassland (41%), bare terrain (29%) and cropland (25%) within 80 km.

3 km
112 m
16 km
211 m
80 km
1,423 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
September weather nearby: Aïn Oussera 35 km · Chellalat el Adhaouara 38 km · Ksar el Boukhari 51 km · Sidi Aïssa 57 km · Ain el Hadjel 59 km · Berrouaghia 62 km · Hassi Bahbah 65 km · Sour el Ghozlane 71 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
Muslim 99%

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 Birine (35.635°, 3.225°, elevation 736 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. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).