Tortosa weather in September

In September, Tortosa sees average daytime highs of 25°C and overnight lows near 18°C, with 66 mm of rain across 7.8 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 2nd-wettest month of the year here.

Highs ease over the month, from about 27°C in the first days to 23°C by the end. The sky is clear or mostly clear about 50% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 hours at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Tortosa's 5th-clearest and 10th-windiest month. For the whole year in context, see Tortosa's year-round climate.

Daytime high
25°
4th warmest
Overnight low
18°
10th coldest
Rainfall
66 mm
7.8 wet days
Daylight
12 h 18 min
6:44 AM – 7:00 PM
Cloud cover
43%
5th clearest
Wind
10 km/h
10th windiest
Solar energy
4.8 kWh/m²
Travel score
7.4
out of 10

Tortosa is capital of Tortosa Municipality, Spain.

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 27°C in the first days to 23°C by the end.

A typical September day in Tortosa reaches about 25°C in the afternoon and slips back to 18°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 28°C. Set against its neighbours, September runs about 3°C cooler than August and about 4°C warmer than October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12719
22719
32719
42719
52719
62619
72619
82619
92618
102618
112618
122618
132518
142518
152518
162518
172517
182517
192517
202417
212417
222417
232417
242416
252416
262416
272316
282316
292316
302316

Tortosa weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan13° / 445.99.43.9
Feb13° / 314.710.44.5
Mar16° / 436.111.75.5
Apr18° / 10°55813.16.2
May21° / 13°557.514.27.0
Jun25° / 17°274.814.98.0
Jul28° / 20°213.614.67.6
Aug28° / 21°335.713.67.0
Sep25° / 18°667.812.37.4
Oct21° / 14°677.710.97.0
Nov16° / 516.19.75.7
Dec13° / 425.79.14.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 50% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 18% of September, with mostly cloudy or overcast conditions the remaining 32%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17327
27327
37228
47228
57030
67030
77030
86931
96931
106931
116832
126733
136733
146733
156733
166733
176634
186634
196634
206634
216634
226634
236634
246634
256634
266634
276634
286634
296634
306634

Chance of precipitation in September

Any precipitation

Tortosa gets around 66 mm of rain over 7.8 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 25% and peaks near 27% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
124
224
325
425
525
625
725
825
924
1024
1124
1224
1325
1425
1525
1626
1726
1826
1927
2027
2127
2227
2326
2426
2526
2625
2725
2824
2924
3023

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 30% of days. Sticky, muggy-or-worse air turns up on roughly 23% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1181922329
2191922328
3192023317
4202024316
5202024315
6212125304
7222125293
8232125292
9242125282
10252125271
11262026271
12272026261
13282026251
14291926250
15301927240
16311927220
17331927210
18341927200
19342028180
20352028170
21362128160
22362128140
23362229130
24372229120
25372330110
2637233090
2738243080
2839243070
2939243070
3040242960

Wind in September

Winds average 10 km/h in September.

Across September, daily wind ranges from about 10 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 hours at the start of September to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 84 minutes over September. Sunrise moves from 6:29 AM to 6:59 AM, and sunset from 7:26 PM to 6:36 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.06:297:26
212.96:307:25
312.96:317:23
412.86:327:21
512.86:337:19
612.76:347:18
712.76:357:16
812.66:367:14
912.66:377:13
1012.56:387:11
1112.56:397:09
1212.56:407:07
1312.46:417:06
1412.46:427:04
1512.36:437:02
1612.36:447:00
1712.26:456:58
1812.26:466:57
1912.16:476:55
2012.16:486:53
2112.06:496:51
2212.06:506:50
2311.96:516:48
2411.96:526:46
2511.86:536:44
2611.86:556:43
2711.86:566:41
2811.76:576:39
2911.76:586:37
3011.66:596:36

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.8 kWh/m².

For context, solar energy here swings from a low near 1.99 kWh/m² to a high of 7.22 kWh/m² in June across the year — September's 4.8 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.5Bright
25.4Bright
35.4Bright
45.3Bright
55.3Bright
65.3Bright
75.2Bright
85.2Bright
95.1Bright
105.1Bright
115.0Bright
125.0Bright
134.9Bright
144.9Bright
154.8Bright
164.8Bright
174.7Bright
184.7Bright
194.7Bright
204.6Bright
214.6Bright
224.5Bright
234.5Bright
244.4Bright
254.4Bright
264.3Bright
274.3Bright
284.3Bright
294.2Bright
304.2Bright
Planning a trip in September

Is September a good time to visit Tortosa?

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

7.4
Sightseeing
3rd-best month of the year
6.7
Beach & pool
4th-best month of the year

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

What to pack for Tortosa in September

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

In September, Tortosa sees daytime highs around 25°C and nights near 18°C. Worth packing: light clothes and sun protection. About 8 days see rain.

light clothessun protection

Sea temperature near Tortosa in September

The nearest coast averages about 25°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 23 km away) is warmest in August at about 26°C and coldest in February near 13°C.

It's comfortable for a long swim from Jun 3 to Oct 30 — about 4.9 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb13Bracing
Mar14Bracing
Apr15Cool
May18Cool
Jun22Refreshing
Jul25Warm
Aug26Warm
Sep25Warm
Oct22Refreshing
Nov18Cool
Dec15Cool

UV index in Tortosa in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Tortosa peaks around July 14 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJul 14UV 9Dec 19UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5High
Apr7High
May6High
Jun9Very high
Jul10Very high
Aug8Very high
Sep6High
Oct4Moderate
Nov2Moderate
Dec2Low
Location & terrain

Where is Tortosa?

Tortosa sits at 40.8°N, 0.5°E, 18 m above sea level, in Spain. The nearest listed city is Amposta, 12 km away.

Topography around Tortosa

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

Within 3 km, the terrain around Tortosa has significant variations in elevation — a maximum elevation change of 276 m around an average of 46 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,433 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,439 m.

The land around Tortosa is covered by trees (50%) within 3 km, trees (49%) and shrubs (20%) within 16 km, and trees (35%) and water (28%) within 80 km.

3 km
276 m
16 km
1,433 m
80 km
1,439 m
treesshrubsgrasslandcroplandartificial surfaceswater
September weather nearby: Amposta 12 km · Sant Carles de la Ràpita 23 km · Vinaròs 38 km · Benicarló 45 km · Cambrils 53 km · Salou 60 km · Alcañiz 61 km · Vila-seca 62 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 Tortosa (40.8125°, 0.5216°, elevation 18 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).