Relizane weather in September

In September, Relizane sees average daytime highs of 31°C and overnight lows near 19°C, with 18 mm of rain across 3.6 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 33°C in the first days to 29°C by the end. The sky is clear or mostly clear about 59% of the time in September, and the air most often feels humid.

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 Relizane's 4th-clearest and 10th-windiest month. For the whole year in context, see Relizane's year-round climate.

Daytime high
31°
4th warmest
Overnight low
19°
10th coldest
Rainfall
18 mm
3.6 wet days
Daylight
12 h 12 min
6:45 AM – 6:59 PM
Cloud cover
37%
4th clearest
Wind
7 km/h
10th windiest
Solar energy
5.54 kWh/m²
Travel score
5.5
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 33°C in the first days to 29°C by the end.

A typical September day in Relizane reaches about 31°C in the afternoon and slips back to 19°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 34°C. Set against its neighbours, September runs about 4°C cooler than August and about 5°C warmer than October.

10°20°30°40°151015202530
Avg high (°C)Avg low (°C)
13321
23321
33321
43320
53320
63320
73220
83220
93220
103220
113219
123119
133119
143119
153119
163119
173019
183018
193018
203018
213018
223018
232918
242918
252918
262917
272917
282917
292917
302817

How September really feels in Relizane

Once humidity and wind are folded in, September averages 8 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
8
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.

Relizane 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
Jan16° / 478.29.95.3
Feb17° / 458.110.65.7
Mar20° / 467.311.76.8
Apr22° / 11°416.812.97.4
May26° / 14°284.513.97.6
Jun31° / 19°61.414.45.6
Jul35° / 22°10.414.23.4
Aug35° / 22°50.813.43.3
Sep31° / 19°183.612.25.5
Oct26° / 15°325.611.17.6
Nov20° / 10°567.910.16.8
Dec17° / 437.29.65.9

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 59% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 15% 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 (%)
18614
28416
38416
48218
58218
68020
77921
87921
97723
107723
117624
127525
137525
147327
157327
167327
177228
187228
197129
207129
217030
227030
237030
247129
257030
267030
277030
287129
297129
307228

Chance of precipitation in September

Any precipitation

Relizane gets around 18 mm of rain over 3.6 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 12% and peaks near 16% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)
14
25
35
46
56
67
78
88
99
1010
1110
1211
1312
1412
1512
1613
1713
1814
1914
2014
2115
2215
2315
2415
2515
2615
2715
2815
2916
3016

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the humid band about 34% of days. Sticky, muggy-or-worse air turns up on roughly 19% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1102237265
2102237255
3112337254
4112437244
5112537243
6122637233
7122637222
8132736222
9142735222
10152735212
11162734212
12172734201
13182733201
14192733201
15202733191
16202733191
17212733181
18212733181
19222733171
20222833161
21232834151
22232934141
23233034131
24233134120
25233233110
2623343390
2724353280
2824363270
2925383160
3025393060

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 8 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
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
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 6:34 AM to 6:57 AM, and sunset from 7:21 PM to 6:38 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.86:347:21
212.86:347:20
312.76:357:18
412.76:367:17
512.66:377:15
612.66:387:14
712.66:387:12
812.56:397:11
912.56:407:09
1012.56:417:08
1112.46:427:06
1212.46:427:05
1312.36:437:03
1412.36:447:02
1512.36:457:00
1612.26:456:59
1712.26:466:57
1812.16:476:56
1912.16:486:54
2012.16:496:53
2112.06:496:51
2212.06:506:50
2312.06:516:48
2411.96:526:47
2511.96:536:45
2611.86:536:44
2711.86:546:42
2811.86:556:41
2911.76:566:39
3011.76:576:38

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.54 kWh/m².

For context, solar energy here swings from a low near 2.45 kWh/m² to a high of 7.65 kWh/m² in June across the year — September's 5.54 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.3Intense
26.3Intense
36.2Intense
46.2Intense
56.1Intense
66.0Intense
76.0Intense
85.9Bright
95.9Bright
105.8Bright
115.8Bright
125.7Bright
135.7Bright
145.6Bright
155.6Bright
165.5Bright
175.5Bright
185.4Bright
195.3Bright
205.3Bright
215.3Bright
225.2Bright
235.2Bright
245.1Bright
255.1Bright
265.0Bright
275.0Bright
285.0Bright
294.9Bright
304.9Bright
Planning a trip in September

Hazard calendar for Relizane

In seasonPeak

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

Relizane 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 Relizane?

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

5.5
Sightseeing
9th-best month of the year
8.0
Beach & pool
2nd-best month of the year

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

What to pack for Relizane in September

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

In September, Relizane sees daytime highs around 31°C and nights near 19°C. Pack light clothes. Worth having: sun protection. About 4 days see rain.

light clothessun protection

Sea temperature near Relizane 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 58 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 7 to Oct 31 — about 4.8 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb15Cool
Mar16Cool
Apr16Cool
May18Cool
Jun21Refreshing
Jul23Refreshing
Aug25Warm
Sep24Refreshing
Oct21Refreshing
Nov19Cool
Dec17Cool

UV index in Relizane 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 Relizane 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 highHighModerateJul 16UV 10Dec 19UV 2
UV index (midday)Level
Jan3Moderate
Feb3Moderate
Mar7High
Apr7High
May8Very high
Jun9Very high
Jul10Very high
Aug9Very high
Sep8Very high
Oct5High
Nov3Moderate
Dec2Moderate

Air quality in Relizane 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 Relizane 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 Relizane?

Relizane sits at 35.7°N, 0.6°E, 98 m above sea level, in Algeria. The nearest listed city is Zemoura, 18 km away.

Topography around Relizane

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

Within 3 km, the terrain around Relizane has only modest variations in elevation — a maximum elevation change of 64 m around an average of 72 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 531 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,245 m.

The land around Relizane is covered by cropland (43%) and artificial surfaces (32%) within 3 km, cropland (63%) and grassland (22%) within 16 km, and cropland (38%) and grassland (31%) within 80 km.

3 km
64 m
16 km
531 m
80 km
1,245 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Zemoura 18 km · Djidiouia 33 km · Oued el Abtal 33 km · Tighenif 41 km · Oued Rhiou 41 km · Mohammadia 47 km · Mostaganem 47 km · Ammi Moussa 52 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 Relizane (35.7373°, 0.556°, elevation 98 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).