Redondela weather in September

In September, Redondela sees average daytime highs of 22°C and overnight lows near 13°C, with 90 mm of rain across 8.9 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 24°C in the first days to 21°C by the end. The sky is clear or mostly clear about 42% 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 Redondela's 3rd-clearest and 12th-windiest month. For the whole year in context, see Redondela's year-round climate.

Daytime high
22°
3rd warmest
Overnight low
13°
10th coldest
Rainfall
90 mm
8.9 wet days
Daylight
12 h 18 min
7:20 AM – 7:37 PM
Cloud cover
49%
3rd clearest
Wind
9 km/h
12th windiest
Solar energy
4.62 kWh/m²
Travel score
7.0
out of 10

Redondela is human settlement in Redondela, Pontevedra Province, 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 24°C in the first days to 21°C by the end.

A typical September day in Redondela reaches about 22°C in the afternoon and slips back to 13°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 27°C. Set against its neighbours, September runs about 2°C cooler than August and about 4°C warmer than October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12414
22414
32414
42414
52314
62314
72314
82314
92314
102314
112314
122314
132214
142213
152213
162213
172213
182213
192213
202213
212113
222113
232113
242113
252113
262112
272112
282112
292012
302012

Redondela 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° / 20413.99.32.7
Feb13° / 13811.110.33.3
Mar15° / 15012.111.64.4
Apr16° / 15014.413.14.6
May19° / 10°12213.114.45.6
Jun22° / 13°628.3157.0
Jul24° / 15°375.814.88.0
Aug24° / 15°506.113.78.0
Sep22° / 13°908.912.37.0
Oct18° / 11°20113.610.85.4
Nov14° / 21314.79.63.7
Dec12° / 20713.693.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 42% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 15% of September, with mostly cloudy or overcast conditions the remaining 44%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16733
26733
36634
46634
56535
66436
76337
86238
96238
106040
115941
125941
135743
145644
155644
165545
175347
185347
195248
205248
215149
225248
235149
245050
255050
264951
274951
284951
294951
304852

Chance of precipitation in September

Any precipitation

Redondela gets around 90 mm of rain over 8.9 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 30% and peaks near 35% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
123
223
323
424
524
625
725
826
927
1027
1128
1229
1330
1430
1531
1631
1732
1832
1933
2033
2133
2234
2334
2434
2534
2635
2735
2835
2935
3035

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 46% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
12449261
22449261
32449261
42550250
52550250
62650240
72750230
82849230
92849230
102948220
113048220
123247210
133347200
143446200
153546190
163646180
173845170
183945150
194045140
204245130
214345120
224444110
234544110
244644100
25474390
26484390
27504280
28514180
29534070
30543970

Wind in September

Winds average 9 km/h in September, the calmest month.

Across September, daily wind ranges from about 9 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
19calm
29calm
39calm
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 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
213.07:058:02
312.97:068:01
412.97:077:59
512.87:087:57
612.87:097:55
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
1612.37:207:37
1712.27:217:35
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
2711.77:327:17
2811.77:347:15
2911.67:357:13
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 4.62 kWh/m².

For context, solar energy here swings from a low near 1.46 kWh/m² to a high of 6.94 kWh/m² in July across the year — September's 4.62 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.3Bright
45.3Bright
55.2Bright
65.2Bright
75.1Bright
85.1Bright
95.0Bright
104.9Bright
114.9Bright
124.8Bright
134.7Bright
144.7Bright
154.6Bright
164.6Bright
174.5Bright
184.4Bright
194.4Bright
204.3Bright
214.3Bright
224.2Bright
234.2Bright
244.1Bright
254.0Bright
264.0Moderate
273.9Moderate
283.9Moderate
293.8Moderate
303.8Moderate
Planning a trip in September

Hazard calendar for Redondela

In seasonPeak

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

Redondela'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 Redondela?

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
4.9
Beach & pool
3rd-best month of the year

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

What to pack for Redondela in September

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

In September, Redondela sees daytime highs around 22°C and nights near 13°C. Worth packing: light clothes, rain gear and sun protection. About 9 days see rain.

light clothesrain gearsun protection

Sea temperature near Redondela 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 24 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
Jun16Cool
Jul17Cool
Aug17Cool
Sep17Cool
Oct16Cool
Nov15Cool
Dec14Bracing

UV index in Redondela 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 Redondela 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 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 15UV 9Dec 20UV 1
UV index (midday)Level
Jan2Low
Feb2Moderate
Mar5Moderate
Apr6High
May7High
Jun8Very high
Jul9Very high
Aug8Very high
Sep6High
Oct4Moderate
Nov2Low
Dec1Low

Air quality in Redondela 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 Redondela is worst in September — around 19 µg/m³ PM2.5 (moderate), about 2.8× the cleanest month (November, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodModerateGoodSep 1819 µg/m³Nov 237 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb12Good
Mar15Moderate
Apr12Good
May8Good
Jun8Good
Jul9Good
Aug14Moderate
Sep19Moderate
Oct17Moderate
Nov7Good
Dec7Good
Location & terrain

Where is Redondela?

Redondela sits at 42.3°N, 8.6°W, 6 m above sea level, in Spain. The nearest listed city is Moaña, 11 km away.

Topography around Redondela

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

Within 3 km, the terrain around Redondela has significant variations in elevation — a maximum elevation change of 443 m around an average of 120 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 880 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,517 m.

The land around Redondela is covered by trees (47%) and grassland (27%) within 3 km, trees (61%) and grassland (20%) within 16 km, and trees (48%), grassland (25%) and water (24%) within 80 km.

3 km
443 m
16 km
880 m
80 km
1,517 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Moaña 11 km · Vigo 11 km · Porriño 14 km · Marín 14 km · Cangas do Morrazo 15 km · Ponteareas 15 km · Pontevedra 17 km · Poio 19 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 Redondela (42.2834°, -8.6096°, elevation 6 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).