Algeciras weather in September

In September, Algeciras sees average daytime highs of 25°C and overnight lows near 19°C, with 36 mm of rain across 4.1 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 26°C in the first days to 23°C by the end. The sky is clear or mostly clear about 63% 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 Algeciras's 4th-clearest and 10th-windiest month. For the whole year in context, see Algeciras's year-round climate.

Daytime high
25°
3rd warmest
Overnight low
19°
10th coldest
Rainfall
36 mm
4.1 wet days
Daylight
12 h 12 min
7:09 AM – 7:23 PM
Cloud cover
34%
4th clearest
Wind
15 km/h
10th windiest
Solar energy
5.47 kWh/m²
Travel score
8.3
out of 10
Air quality
Good
PM10 27.2 µg/m³ · 2017

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 26°C in the first days to 23°C by the end.

A typical September day in Algeciras reaches about 25°C in the afternoon and slips back to 19°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 27°C. Set against its neighbours, September runs about 2°C cooler than August and about 3°C warmer than October.

15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12620
22620
32620
42620
52620
62620
72620
82620
92620
102520
112520
122520
132520
142519
152519
162519
172519
182519
192419
202419
212419
222419
232419
242419
252419
262418
272418
282418
292318
302318

Algeciras 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
Jan15° / 10°888.89.84.8
Feb15° / 10°778.110.65.0
Mar17° / 12°828.111.75.9
Apr18° / 13°627.112.96.6
May21° / 15°325.313.97.6
Jun24° / 18°61.214.49.0
Jul27° / 20°10.214.29.0
Aug27° / 21°40.613.48.7
Sep25° / 19°364.112.28.3
Oct22° / 17°868.211.17.0
Nov18° / 13°988.710.16.1
Dec16° / 11°1179.99.65.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 63% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 16% of September, with mostly cloudy or overcast conditions the remaining 21%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18713
28713
38614
48614
58614
68416
78416
88416
98218
108218
118218
128119
138020
147921
157921
167921
177723
187723
197624
207624
217525
227525
237426
247426
257426
267327
277327
287327
297327
307228

Chance of precipitation in September

Any precipitation

Algeciras gets around 36 mm of rain over 4.1 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 13% and peaks near 20% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)
15
25
35
46
56
66
77
88
98
109
1110
1211
1311
1412
1513
1614
1715
1815
1916
2017
2118
2219
2319
2419
2520
2619
2719
2819
2919
3020

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 51% of days. Sticky, muggy-or-worse air turns up on roughly 29% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
10747451
20748431
31849421
41949411
51950401
611050381
721150371
821150361
921251350
1021351340
1121451330
1231550330
1331649320
1431649310
1531749300
1631849300
1731851280
1841950270
1942050260
2042051250
2142151240
2242251230
2342253210
2442353200
2542354190
2642454180
2742456160
2842556150
2952556140
3052656130

Wind in September

Winds average 15 km/h in September.

Across September, daily wind ranges from about 14 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
115light breeze
215light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1615light breeze
1715light breeze
1815light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze

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 6:57 AM to 7:21 AM, and sunset from 7:46 PM to 7:01 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.86:577:46
212.86:587:44
312.76:597:43
412.77:007:41
512.77:017:40
612.67:017:38
712.67:027:37
812.57:037:35
912.57:047:34
1012.57:057:32
1112.47:057:31
1212.47:067:29
1312.37:077:28
1412.37:087:26
1512.37:097:24
1612.27:097:23
1712.27:107:21
1812.17:117:20
1912.17:127:18
2012.17:137:17
2112.07:137:15
2212.07:147:14
2312.07:157:12
2411.97:167:11
2511.97:177:09
2611.87:177:07
2711.87:187:06
2811.87:197:04
2911.77:207:03
3011.77:217:01

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.47 kWh/m².

For context, solar energy here swings from a low near 2.35 kWh/m² to a high of 7.79 kWh/m² in June across the year — September's 5.47 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
95.9Bright
105.8Bright
115.7Bright
125.7Bright
135.6Bright
145.6Bright
155.5Bright
165.5Bright
175.4Bright
185.3Bright
195.3Bright
205.2Bright
215.2Bright
225.1Bright
235.1Bright
245.0Bright
255.0Bright
264.9Bright
274.9Bright
284.8Bright
294.8Bright
304.8Bright
Planning a trip in September

Hazard calendar for Algeciras

In seasonPeak

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

Algeciras's rainy season runs October–April, when most of the year's rain falls.

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

Is September a good time to visit Algeciras?

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

8.3
Sightseeing
4th-best month of the year
7.3
Beach & pool
4th-best month of the year

September is one of the better times to visit Algeciras for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Algeciras in September

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

In September, Algeciras sees daytime highs around 25°C and nights near 19°C. Worth packing: light clothes and sun protection. About 4 days see rain.

light clothessun protection

Sea temperature near Algeciras in September

The nearest coast averages about 21°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 22°C and coldest in February near 15°C.

It's comfortable for a long swim from Jul 5 to Sep 29 — about 2.9 months when the water holds above 20°C.

15°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb15Cool
Mar15Cool
Apr16Cool
May17Cool
Jun19Cool
Jul21Refreshing
Aug22Refreshing
Sep21Refreshing
Oct19Cool
Nov18Cool
Dec17Cool

UV index in Algeciras 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 Algeciras peaks around July 17 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateVery highHighModerateJul 17UV 10Dec 21UV 2
UV index (midday)Level
Jan2Moderate
Feb3Moderate
Mar7High
Apr9Very high
May8Very high
Jun8Very high
Jul10Extreme
Aug8Very high
Sep7High
Oct6High
Nov3Moderate
Dec2Moderate

Air quality in Algeciras 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 Algeciras is worst in March — around 17 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (June, 10 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateGoodMar 1616 µg/m³Jun 1410 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb14Moderate
Mar17Moderate
Apr14Moderate
May12Good
Jun10Good
Jul13Moderate
Aug13Moderate
Sep13Moderate
Oct13Moderate
Nov12Good
Dec11Good
Location & terrain

Where is Algeciras?

Algeciras sits at 36.1°N, 5.5°W, 29 m above sea level, in Spain. The nearest listed city is Los Barrios, 7.0 km away.

Topography around Algeciras

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

Within 3 km, the terrain around Algeciras has only modest variations in elevation — a maximum elevation change of 106 m around an average of 24 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 824 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,887 m.

The land around Algeciras is covered by artificial surfaces (38%), water (27%) and grassland (21%) within 3 km, water (39%) and trees (33%) within 16 km, and water (44%) and trees (22%) within 80 km.

3 km
106 m
16 km
824 m
80 km
1,887 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Los Barrios 7.0 km · Gibraltar 9.0 km · La Línea de la Concepción 10 km · San Roque 10 km · Tarifa 19 km · Ceuta 30 km · Fnidek 33 km · Estepona 43 km

Spain travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 65% of US
price level, 2025
GDP per capita
$38,627
2025
Happiness
6.5 / 10
World Happiness, 2025
Safe drinking water
99%
of population, 2024
Homicide rate
0.7
per 100k, 2023
Road deaths
3.9
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 540
Religion
Roman Catholic 58%atheist 16%agnostic 11%non-believer 11%

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 Algeciras (36.1333°, -5.4505°, elevation 29 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).