Porta weather in September

In September, Porta sees average daytime highs of 24°C and overnight lows near 18°C, with 77 mm of rain across 10.6 wet days and about 12.3 hours of daylight. It is the 3rd-warmest and 2nd-wettest month of the year here.

Highs ease over the month, from about 26°C in the first days to 22°C by the end. The sky is clear or mostly clear about 40% of the time in September, and the air most often feels humid.

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 Porta's 9th-clearest and 9th-windiest month. For the whole year in context, see Porta's year-round climate.

Daytime high
24°
3rd warmest
Overnight low
18°
10th coldest
Rainfall
77 mm
10.6 wet days
Daylight
12 h 18 min
6:37 AM – 6:54 PM
Cloud cover
50%
9th clearest
Wind
9 km/h
9th windiest
Solar energy
4.37 kWh/m²
Travel score
6.9
out of 10

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 22°C by the end.

A typical September day in Porta reaches about 24°C in the afternoon and slips back to 18°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 27°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)
12620
22619
32619
42519
52519
62519
72519
82519
92519
102518
112518
122518
132418
142418
152418
162418
172417
182417
192417
202317
212317
222317
232317
242317
252316
262316
272316
282316
292216
302216

Porta weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan12° / 406.29.33.8
Feb13° / 366.310.34.1
Mar15° / 406.711.75.1
Apr17° / 10°528.213.15.8
May20° / 13°457.514.36.8
Jun24° / 17°345.614.97.9
Jul27° / 20°254.714.77.9
Aug27° / 20°406.613.77.3
Sep24° / 18°7710.612.36.9
Oct20° / 14°901010.96.5
Nov16° / 6089.75.4
Dec13° / 415.79.14.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 40% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 19% of September, with mostly cloudy or overcast conditions the remaining 41%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16238
26139
36040
46040
55941
65941
75941
85941
95941
105941
115941
125941
135941
145842
155842
165842
175842
185842
195842
205743
215743
225743
235743
245842
255842
265842
275941
285941
295941
305941

Chance of precipitation in September

Any precipitation

Porta gets around 77 mm of rain over 10.6 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 35% and peaks near 37% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
132
232
333
433
534
634
734
834
935
1035
1135
1235
1335
1436
1536
1636
1737
1837
1937
2037
2137
2236
2336
2435
2534
2634
2733
2833
2933
3032

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 38% 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 (%)
121133477
221234466
321335455
431336444
531436433
641537422
751637412
851637401
961737391
1071837381
1171937360
1282037350
1382137340
1492237320
15102238300
16102338290
17112438270
18122538250
19122639230
20132639220
21142739200
22142840180
23142940170
24152941150
25153041140
26163041120
27163141110
28173141100
2918324190
3019324080

Wind in September

Winds average 9 km/h in September.

Across September, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

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 6:22 AM to 6:52 AM, and sunset from 7:20 PM to 6:29 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.06:227:20
212.96:237:18
312.96:247:17
412.86:257:15
512.86:267:13
612.76:277:12
712.76:287:10
812.66:297:08
912.66:307:06
1012.66:317:05
1112.56:327:03
1212.56:337:01
1312.46:346:59
1412.46:356:57
1512.36:366:56
1612.36:376:54
1712.26:386:52
1812.26:406:50
1912.16:416:48
2012.16:426:47
2112.06:436:45
2212.06:446:43
2311.96:456:41
2411.96:466:39
2511.86:476:38
2611.86:486:36
2711.86:496:34
2811.76:506:32
2911.76:516:31
3011.66:526:29

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.37 kWh/m².

For context, solar energy here swings from a low near 1.84 kWh/m² to a high of 6.83 kWh/m² in June across the year — September's 4.37 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
34.9Bright
44.9Bright
54.8Bright
64.8Bright
74.8Bright
84.7Bright
94.7Bright
104.6Bright
114.6Bright
124.5Bright
134.5Bright
144.5Bright
154.4Bright
164.4Bright
174.3Bright
184.3Bright
194.3Bright
204.2Bright
214.2Bright
224.1Bright
234.1Bright
244.0Bright
254.0Bright
264.0Moderate
273.9Moderate
283.9Moderate
293.8Moderate
303.8Moderate
Planning a trip in September

Is September a good time to visit Porta?

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

6.9
Sightseeing
4th-best month of the year
5.8
Beach & pool
4th-best month of the year

September is a reasonable time to visit Porta for sightseeing.

What to pack for Porta in September

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

In September, Porta sees daytime highs around 24°C and nights near 18°C. Worth packing: light clothes and rain gear. About 11 days see rain.

light clothesrain gear

Sea temperature near Porta 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 18 km away) is warmest in August at about 25°C and coldest in February near 13°C.

It's comfortable for a long swim from Jun 11 to Oct 23 — about 4.4 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb13Bracing
Mar13Bracing
Apr14Bracing
May17Cool
Jun21Refreshing
Jul24Refreshing
Aug25Warm
Sep24Refreshing
Oct21Refreshing
Nov17Cool
Dec15Bracing

UV index in Porta 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 Porta peaks around July 15 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 1 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJul 15UV 9Dec 20UV 1
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr7High
May6High
Jun8Very high
Jul9Very high
Aug8Very high
Sep6High
Oct3Moderate
Nov2Moderate
Dec1Low
Location & terrain

Where is Porta?

Porta sits at 41.4°N, 2.2°E, 54 m above sea level, in Spain. The nearest listed city is Nou Barris, 1.0 km away.

Topography around Porta

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

Within 3 km, the terrain around Porta has significant variations in elevation — a maximum elevation change of 329 m around an average of 84 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 512 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,677 m.

The land around Porta is covered by artificial surfaces (70%) and trees (21%) within 3 km, artificial surfaces (31%), water (30%) and trees (26%) within 16 km, and trees (43%) and water (33%) within 80 km.

3 km
329 m
16 km
512 m
80 km
1,677 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Nou Barris 1.0 km · Vilapicina i la Torre Llobeta 1.0 km · el Turó de la Peira 1.0 km · la Prosperitat 1.0 km · Sant Andreu 1.0 km · la Guineueta 1.0 km · Barri de Sant Andreu 1.0 km · La Sagrera 1.0 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 Porta (41.4349°, 2.1788°, elevation 54 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).