Tui weather in September

In September, Tui sees average daytime highs of 21°C and overnight lows near 15°C, with 85 mm of rain across 8.1 wet days and about 12.3 hours of daylight. It is the 3rd-warmest and 9th-wettest month of the year here.

Highs ease over the month, from about 22°C in the first days to 20°C by the end. The sky is clear or mostly clear about 46% of the time in September, and the air most often feels comfortable.

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 Tui's 3rd-clearest and 12th-windiest month. For the whole year in context, see Tui's year-round climate.

Daytime high
21°
3rd warmest
Overnight low
15°
10th coldest
Rainfall
85 mm
8.1 wet days
Daylight
12 h 18 min
7:21 AM – 7:37 PM
Cloud cover
45%
3rd clearest
Wind
11 km/h
12th windiest
Solar energy
4.79 kWh/m²
Travel score
7.0
out of 10

Tui is capital town of the municipality of Tui, 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 22°C in the first days to 20°C by the end.

A typical September day in Tui reaches about 21°C in the afternoon and slips back to 15°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 25°C. Set against its neighbours, September runs about 2°C cooler than August and about 3°C warmer than October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12215
22215
32215
42215
52215
62215
72215
82215
92215
102215
112215
122115
132115
142115
152115
162115
172115
182115
192114
202114
212114
222014
232014
242014
252014
262014
272014
282014
292014
302014

Tui weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan12° / 20913.99.33.1
Feb13° / 13910.710.33.6
Mar15° / 15411.711.74.4
Apr16° / 10°15113.513.14.6
May18° / 12°1251214.35.7
Jun21° / 14°547.4157.0
Jul22° / 16°314.714.78.1
Aug23° / 16°435.513.78.0
Sep21° / 15°858.112.37.0
Oct18° / 13°21213.310.95.5
Nov15° / 10°22714.89.64.0
Dec13° / 21214.293.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 46% 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 37%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17228
27228
37129
47129
57030
67030
77030
86832
96832
106733
116733
126535
136535
146337
156337
166139
176139
186040
195941
205941
215842
225842
235743
245644
255644
265545
275545
285446
295446
305347

Chance of precipitation in September

Any precipitation

Tui gets around 85 mm of rain over 8.1 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 27% and peaks near 32% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202530
Rain chance (%)
121
221
321
422
522
622
723
824
924
1025
1126
1227
1327
1428
1528
1629
1729
1830
1930
2030
2130
2231
2331
2431
2531
2632
2732
2832
2932
3032

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the comfortable band about 47% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
11646371
21646371
31646371
41746361
51746360
61846350
71947340
81947340
92047330
102147320
112247310
122347300
132347290
142447280
152547270
162648260
172648250
182749240
192849230
202949220
213049210
223049200
233149190
243249190
253348180
263448180
273547180
283646170
293845170
303944160

Wind in September

Winds average 11 km/h in September, the calmest month.

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
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2512calm
2612calm
2712calm
2812calm
2912calm
3012calm

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 7:04 AM to 7:36 AM, and sunset from 8:04 PM to 7:12 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.07:048:04
212.97:068:02
312.97:078:01
412.97:087:59
512.87:097:57
612.87:107:55
712.77:117:54
812.77:127:52
912.67:137:50
1012.67:147:48
1112.57:157:46
1212.57:167:45
1312.47:177:43
1412.47:187:41
1512.37:197:39
1612.37:217:37
1712.27:227:35
1812.27:237:34
1912.17:247:32
2012.17:257:30
2112.07:267:28
2212.07:277:26
2311.97:287:24
2411.97:297:23
2511.87:307:21
2611.87:317:19
2711.77:337:17
2811.77:347:15
2911.67:357:14
3011.67:367:12

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.79 kWh/m².

For context, solar energy here swings from a low near 1.54 kWh/m² to a high of 7.18 kWh/m² in July across the year — September's 4.79 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.5Bright
45.5Bright
55.4Bright
65.3Bright
75.3Bright
85.2Bright
95.2Bright
105.1Bright
115.0Bright
125.0Bright
134.9Bright
144.9Bright
154.8Bright
164.7Bright
174.7Bright
184.6Bright
194.6Bright
204.5Bright
214.5Bright
224.4Bright
234.3Bright
244.3Bright
254.2Bright
264.2Bright
274.1Bright
284.1Bright
294.0Bright
304.0Moderate
Planning a trip in September

Hazard calendar for Tui

In seasonPeak

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

Tui's rainy season runs October–May, 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 Tui?

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

7.0
Sightseeing
3rd-best month of the year
4.3
Beach & pool
3rd-best month of the year

September is one of the better times to visit Tui for general sightseeing.

What to pack for Tui in September

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

In September, Tui sees daytime highs around 21°C and nights near 15°C. Worth packing: rain gear and sun protection. About 8 days see rain.

rain gearsun protection

Sea temperature near Tui in September

The nearest coast averages about 17°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 21 km away) is warmest in August at about 17°C and coldest in February near 13°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

12°14°16°18°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan14Bracing
Feb13Bracing
Mar13Bracing
Apr14Bracing
May15Cool
Jun17Cool
Jul17Cool
Aug17Cool
Sep17Cool
Oct16Cool
Nov15Cool
Dec14Bracing

UV index in Tui 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 Tui peaks around July 13 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 1 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 13UV 9Dec 21UV 1
UV index (midday)Level
Jan2Low
Feb2Moderate
Mar5Moderate
Apr7High
May7High
Jun9Very high
Jul9Very high
Aug8Very high
Sep6High
Oct4Moderate
Nov2Moderate
Dec1Low
Location & terrain

Where is Tui?

Tui sits at 42.0°N, 8.6°W, 50 m above sea level, in Spain. The nearest listed city is Porriño, 13 km away.

Topography around Tui

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

Within 3 km, the terrain around Tui has significant variations in elevation — a maximum elevation change of 271 m around an average of 57 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 825 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,517 m.

The land around Tui is covered by trees (47%) and grassland (31%) within 3 km, trees (60%) and grassland (31%) within 16 km, and trees (44%), water (26%) and grassland (25%) within 80 km.

3 km
271 m
16 km
825 m
80 km
1,517 m
treesshrubsgrasslandcroplandartificial surfaceswater
September weather nearby: Porriño 13 km · Monção 14 km · Nigrán 17 km · Ponteareas 18 km · Vigo 22 km · Redondela 26 km · Cangas do Morrazo 27 km · Moaña 27 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 Tui (42.0471°, -8.6443°, elevation 50 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).