As Sawānī weather in September

In September, As Sawānī sees average daytime highs of 32°C and overnight lows near 23°C, with 10 mm of rain across 1.9 wet days and about 12.2 hours of daylight. It is the 3rd-warmest and 8th-wettest month of the year here.

Highs ease over the month, from about 33°C in the first days to 31°C by the end. The sky is clear or mostly clear about 81% of the time in September, and the air most often feels muggy.

Daylight stretches from about 12 h 42 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is As Sawānī's 4th-clearest and 9th-windiest month. For the whole year in context, see As Sawānī's year-round climate.

Daytime high
32°
3rd warmest
Overnight low
23°
11th coldest
Rainfall
10 mm
1.9 wet days
Daylight
12 h 12 min
6:56 AM – 7:08 PM
Cloud cover
21%
4th clearest
Wind
12 km/h
9th windiest
Solar energy
5.7 kWh/m²
Travel score
5.1
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 31°C by the end.

A typical September day in As Sawānī reaches about 32°C in the afternoon and slips back to 23°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 37°C. Set against its neighbours, September runs about 2°C cooler than August and about 4°C warmer than October.

15°20°25°30°35°40°151015202530
Avg high (°C)Avg low (°C)
13324
23324
33324
43324
53324
63324
73324
83324
93324
103324
113324
123323
133223
143223
153223
163223
173223
183223
193223
203223
213223
223223
233123
243122
253122
263122
273122
283122
293122
303122

How September really feels in As Sawānī

Once humidity and wind are folded in, September averages 25 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
25
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.

As Sawānī weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan17° / 10°306.110.16.4
Feb18° / 10°274.910.86.9
Mar21° / 12°183.711.87.9
Apr25° / 15°102.112.88.6
May28° / 18°5113.77.6
Jun31° / 21°10.514.15.8
Jul33° / 23°0013.94.9
Aug34° / 24°10.313.24.5
Sep32° / 23°101.912.25.1
Oct29° / 20°173.611.26.9
Nov23° / 15°214.710.38.0
Dec19° / 11°2669.96.9

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 81% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 10% of September, with mostly cloudy or overcast conditions the remaining 9%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1973
2973
3973
4973
5973
6973
7964
8964
9964
10964
11955
12946
13946
14946
15928
16928
179010
189010
198812
208812
218614
228614
238614
248416
258416
268317
278317
288317
298218
308218

Chance of precipitation in September

Any precipitation

As Sawānī gets around 10 mm of rain over 1.9 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 6% and peaks near 12% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)
12
22
33
43
53
63
73
83
94
104
114
124
134
145
155
165
176
186
197
207
218
228
239
249
2510
2610
2711
2811
2911
3012

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the muggy band about 46% of days. Sticky, muggy-or-worse air turns up on roughly 63% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1241849252
2241949242
3242049242
4242049232
5242149222
6242249212
7242249212
8252349202
9252449192
10252448192
11252548182
12262548182
13262648171
14272648171
15272648161
16272648161
17282747151
18282747151
19392746151
20392746140
213102845140
223102844140
233112943130
244112942130
254123041130
264123140120
275133239120
285133337120
295143436110
306153435110

Wind in September

Winds average 12 km/h in September.

Across September, daily wind ranges from about 11 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
111calm
211calm
312calm
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912calm
3012calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 42 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 60 minutes over September. Sunrise moves from 6:46 AM to 7:06 AM, and sunset from 7:29 PM to 6:49 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.76:467:29
212.76:477:27
312.66:487:26
412.66:487:25
512.66:497:23
612.56:507:22
712.56:507:21
812.56:517:19
912.46:517:18
1012.46:527:16
1112.46:537:15
1212.36:537:14
1312.36:547:12
1412.36:557:11
1512.26:557:09
1612.26:567:08
1712.26:577:07
1812.16:577:05
1912.16:587:04
2012.16:597:02
2112.06:597:01
2212.07:007:00
2312.07:016:58
2411.97:016:57
2511.97:026:55
2611.97:036:54
2711.87:036:53
2811.87:046:51
2911.77:056:50
3011.77:066:49

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.7 kWh/m².

For context, solar energy here swings from a low near 2.75 kWh/m² to a high of 7.7 kWh/m² in July across the year — September's 5.7 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.4Intense
26.3Intense
36.3Intense
46.2Intense
56.2Intense
66.2Intense
76.1Intense
86.1Intense
96.0Intense
106.0Bright
115.9Bright
125.9Bright
135.9Bright
145.8Bright
155.8Bright
165.7Bright
175.7Bright
185.6Bright
195.6Bright
205.5Bright
215.5Bright
225.4Bright
235.4Bright
245.3Bright
255.3Bright
265.2Bright
275.2Bright
285.1Bright
295.1Bright
305.0Bright
Planning a trip in September

Hazard calendar for As Sawānī

In seasonPeak

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

As Sawānī sees seasonal dust haze (March–June), heaviest in April.

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

Is September a good time to visit As Sawānī?

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

5.1
Sightseeing
10th-best month of the year
8.2
Beach & pool
5th-best month of the year

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

What to pack for As Sawānī in September

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

In September, As Sawānī sees daytime highs around 32°C and nights near 23°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

Sea temperature near As Sawānī in September

The nearest coast averages about 27°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 18 km away) is warmest in August at about 27°C and coldest in February near 16°C.

It's comfortable for a long swim from May 26 to Dec 11 — about 6.6 months when the water holds above 20°C.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan17Cool
Feb16Cool
Mar16Cool
Apr17Cool
May19Cool
Jun22Refreshing
Jul25Warm
Aug27Warm
Sep27Warm
Oct25Warm
Nov23Refreshing
Dec20Cool

UV index in As Sawānī 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 As Sawānī peaks around June 19 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highVery highModerateJun 19UV 11Jan 1UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar7High
Apr6High
May7High
Jun11Extreme
Jul9Very high
Aug10Very high
Sep8Very high
Oct7High
Nov4Moderate
Dec3Moderate

Air quality in As Sawānī 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 As Sawānī is worst in April — around 40 µg/m³ PM2.5 (poor), about 2.6× the cleanest month (August, 16 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModerateApr 1140 µg/m³Aug 1016 µg/m³
PM2.5 (µg/m³)Level
Jan38Poor
Feb35Poor
Mar38Poor
Apr40Poor
May29Moderate
Jun22Moderate
Jul16Moderate
Aug16Moderate
Sep21Moderate
Oct26Moderate
Nov32Moderate
Dec32Moderate
Location & terrain

Where is As Sawānī?

As Sawānī sits at 32.7°N, 13.1°E, 60 m above sea level, in Libya. The nearest listed city is Qaşr Bin Ghashīr, 12 km away.

Topography around As Sawānī

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

Within 3 km, the terrain around As Sawānī has only modest variations in elevation — a maximum elevation change of 23 m around an average of 60 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 104 m; within 80 km, large variations in elevation — a maximum elevation change of 914 m.

The land around As Sawānī is covered by cropland (34%), artificial surfaces (34%) and grassland (28%) within 3 km, cropland (34%), grassland (30%) and artificial surfaces (29%) within 16 km, and grassland (34%) and water (30%) within 80 km.

3 km
23 m
16 km
104 m
80 km
914 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Qaşr Bin Ghashīr 12 km · Janzūr 12 km · Az Zahrā’ 19 km · An Nāşirīyah 20 km · Al ‘Azīzīyah 21 km · Qarqūzah 21 km · Tripoli 22 km · Zawiya 32 km

Libya travel facts

Travel advisory
Level 4
Do Not Travel
Power plugs
Type C / F / L
230 V · 50 Hz
Prices
≈ 39% of US
price level, 2025
GDP per capita
$6,449
2025
Happiness
5.7 / 10
World Happiness, 2025
Road deaths
21.3
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Very low
EF EPI 395
Religion
Muslim 97%Christian 3%

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 As Sawānī (32.7167°, 13.0667°, elevation 60 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).