Ammi Moussa weather in September

In September, Ammi Moussa sees average daytime highs of 31°C and overnight lows near 19°C, with 17 mm of rain across 3.4 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 9th-wettest month of the year here.

Highs ease over the month, from about 34°C in the first days to 29°C by the end. The sky is clear or mostly clear about 58% 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 Ammi Moussa's 4th-clearest and 11th-windiest month. For the whole year in context, see Ammi Moussa's year-round climate.

Daytime high
31°
4th warmest
Overnight low
19°
10th coldest
Rainfall
17 mm
3.4 wet days
Daylight
12 h 12 min
6:43 AM – 6:57 PM
Cloud cover
37%
4th clearest
Wind
7 km/h
11th windiest
Solar energy
5.48 kWh/m²
Travel score
5.3
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 34°C in the first days to 29°C by the end.

A typical September day in Ammi Moussa reaches about 31°C in the afternoon and slips back to 19°C overnight — a 13°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 35°C. Set against its neighbours, September runs about 5°C cooler than August and about 6°C warmer than October.

10°20°30°40°151015202530
Avg high (°C)Avg low (°C)
13421
23421
33421
43420
53320
63320
73320
83320
93320
103219
113219
123219
133219
143119
153119
163118
173118
183118
193018
203018
213018
223018
233018
242917
252917
262917
272917
282917
292917
302817

How September really feels in Ammi Moussa

Once humidity and wind are folded in, September averages 11 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
11
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.

Ammi Moussa weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan15° / 548.99.84.7
Feb16° / 478.610.65.2
Mar19° / 507.911.76.6
Apr22° / 11°497.712.97.3
May27° / 14°305.213.97.3
Jun33° / 19°71.614.44.8
Jul37° / 22°20.714.22.3
Aug36° / 22°6213.42.4
Sep31° / 19°173.412.25.3
Oct26° / 15°295.311.17.6
Nov19° / 10°558.410.16.5
Dec16° / 487.79.65.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 58% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 17% of September, with mostly cloudy or overcast conditions the remaining 25%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18416
28416
38218
48119
58119
67921
77921
87822
97822
107723
117723
127624
137624
147426
157426
167426
177327
187228
197228
207228
217129
227129
237129
247030
257030
267030
277129
287129
297129
307228

Chance of precipitation in September

Any precipitation

Ammi Moussa gets around 17 mm of rain over 3.4 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 11% and peaks near 14% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)
16
27
37
47
57
67
78
88
98
109
119
1210
1310
1410
1511
1611
1712
1812
1912
2013
2113
2214
2314
2414
2514
2614
2714
2814
2914
3014

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 37% of days. Sticky, muggy-or-worse air turns up on roughly 7% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1283526101
2283526101
3283626101
429362591
530362590
630362490
732352490
833342490
934332390
1035322390
1136322390
1238312390
1338302390
1439302290
1540302280
1640302280
1740302280
1840312270
1940312270
2040322160
2140332160
2240342150
2340352050
2441362040
2541361940
2642371830
2742381730
2843381720
2944381620
3045381510

Wind in September

Winds average 7 km/h in September.

Across September, daily wind ranges from about 7 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

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 6:31 AM to 6:54 AM, and sunset from 7:19 PM to 6:35 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.86:317:19
212.86:327:18
312.76:337:16
412.76:347:15
512.66:357:13
612.66:357:12
712.66:367:10
812.56:377:09
912.56:387:07
1012.56:387:06
1112.46:397:04
1212.46:407:03
1312.36:417:01
1412.36:427:00
1512.36:426:58
1612.26:436:57
1712.26:446:55
1812.16:456:54
1912.16:466:52
2012.16:466:50
2112.06:476:49
2212.06:486:47
2312.06:496:46
2411.96:506:44
2511.96:506:43
2611.86:516:41
2711.86:526:40
2811.86:536:38
2911.76:546:37
3011.76:546:35

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.48 kWh/m².

For context, solar energy here swings from a low near 2.37 kWh/m² to a high of 7.62 kWh/m² in July across the year — September's 5.48 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.3Intense
26.2Intense
36.2Intense
46.1Intense
56.1Intense
66.0Intense
76.0Bright
85.9Bright
95.8Bright
105.8Bright
115.7Bright
125.7Bright
135.6Bright
145.6Bright
155.5Bright
165.5Bright
175.4Bright
185.3Bright
195.3Bright
205.2Bright
215.2Bright
225.2Bright
235.1Bright
245.0Bright
255.0Bright
265.0Bright
274.9Bright
284.9Bright
294.8Bright
304.8Bright
Planning a trip in September

Hazard calendar for Ammi Moussa

In seasonPeak

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

Ammi Moussa sees seasonal dust haze (July–August), heaviest in July.

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

Is September a good time to visit Ammi Moussa?

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

5.3
Sightseeing
6th-best month of the year
7.8
Beach & pool
2nd-best month of the year

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

What to pack for Ammi Moussa in September

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

In September, Ammi Moussa sees daytime highs around 31°C and nights near 19°C. Pack light clothes. Worth having: sun protection. About 3 days see rain.

light clothessun protection

Sea temperature near Ammi Moussa in September

The nearest coast averages about 24°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 60 km away) is warmest in August at about 25°C and coldest in February near 15°C.

It's comfortable for a long swim from Jun 8 to Nov 1 — about 4.8 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb15Cool
Mar15Cool
Apr16Cool
May18Cool
Jun21Refreshing
Jul23Refreshing
Aug25Warm
Sep24Refreshing
Oct21Refreshing
Nov19Cool
Dec17Cool

UV index in Ammi Moussa in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ammi Moussa peaks around July 16 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 highModerateJul 16UV 10Dec 19UV 2
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar7High
Apr7High
May8Very high
Jun9Very high
Jul10Very high
Aug8Very high
Sep7Very high
Oct5Moderate
Nov3Moderate
Dec2Low

Air quality in Ammi Moussa 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 Ammi Moussa is worst in March — around 26 µg/m³ PM2.5 (moderate), about 1.6× the cleanest month (May, 16 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 1626 µg/m³May 2116 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb21Moderate
Mar26Moderate
Apr20Moderate
May16Moderate
Jun17Moderate
Jul21Moderate
Aug22Moderate
Sep24Moderate
Oct20Moderate
Nov17Moderate
Dec18Moderate
Location & terrain

Where is Ammi Moussa?

Ammi Moussa sits at 35.9°N, 1.1°E, 157 m above sea level, in Algeria. The nearest listed city is Oued Rhiou, 20 km away.

Topography around Ammi Moussa

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

Within 3 km, the terrain around Ammi Moussa has significant variations in elevation — a maximum elevation change of 336 m around an average of 202 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 840 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,952 m.

The land around Ammi Moussa is covered by grassland (46%) and cropland (23%) within 3 km, grassland (46%) and cropland (23%) within 16 km, and cropland (41%) and grassland (33%) within 80 km.

3 km
336 m
16 km
840 m
80 km
1,952 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Oued Rhiou 20 km · Boukadir 22 km · Djidiouia 26 km · Oued Sly 27 km · Mazouna 34 km · ’Aïn Merane 35 km · Zemoura 36 km · Chlef 39 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 Ammi Moussa (35.8678°, 1.1114°, elevation 157 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).