Viveiro weather in September

In September, Viveiro sees average daytime highs of 21°C and overnight lows near 16°C, with 68 mm of rain across 10 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 24% of the time in September, and the air most often feels comfortable.

Daylight stretches from about 13 h 06 min at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Viveiro's 1st-clearest and 8th-windiest month. For the whole year in context, see Viveiro's year-round climate.

Daytime high
21°
3rd warmest
Overnight low
16°
10th coldest
Rainfall
68 mm
10 wet days
Daylight
12 h 18 min
7:16 AM – 7:34 PM
Cloud cover
60%
1st clearest
Wind
15 km/h
8th windiest
Solar energy
4.31 kWh/m²
Travel score
6.4
out of 10

Viveiro is capital town of the municipality of Vivero, 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 Viveiro reaches about 21°C in the afternoon and slips back to 16°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 24°C. Set against its neighbours, September runs about 2°C cooler than August and about 3°C warmer than October.

10°15°20°25°151015202530
Avg high (°C)Avg low (°C)
12217
22216
32216
42216
52216
62216
72216
82216
92116
102116
112116
122116
132116
142116
152116
162116
172116
182116
192115
202115
212115
222015
232015
242015
252015
262015
272015
282015
292015
302015

Viveiro 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
Jan13° / 11614.89.13.0
Feb13° / 8812.310.23.2
Mar14° / 9013.111.63.8
Apr15° / 10°9714.413.24.0
May17° / 12°8212.714.55.1
Jun20° / 14°549.315.26.2
Jul22° / 16°367.414.97.0
Aug22° / 17°518.813.86.9
Sep21° / 16°681012.36.4
Oct18° / 14°10914.210.85.3
Nov15° / 11°13016.49.53.8
Dec13° / 11614.28.83.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 24% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 19% of September, with mostly cloudy or overcast conditions the remaining 56%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14555
24852
34852
44852
54852
64951
74951
84951
94753
104753
114654
124555
134555
144456
154456
164258
174258
184159
194258
204159
214258
224159
234159
244159
254060
264060
274060
284060
293862
303862

Chance of precipitation in September

Any precipitation

Viveiro gets around 68 mm of rain over 10 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 34% and peaks near 38% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
128
228
328
428
529
629
730
830
931
1032
1132
1233
1334
1434
1535
1636
1736
1837
1937
2037
2137
2237
2337
2437
2537
2637
2737
2837
2938
3038

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 41% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
11841374
21841364
31941364
42041364
52041354
62140353
72240353
82340343
92340343
102440333
112540333
122640322
132640312
142740312
152840302
162941292
172941281
183042271
193142261
203243251
213243241
223343231
233444220
243444220
253544210
263643200
273743200
283842190
294042190
304141180

Wind in September

Winds average 15 km/h in September.

Across September, daily wind ranges from about 15 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
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 06 min 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 90 minutes over September. Sunrise moves from 6:58 AM to 7:32 AM, and sunset from 8:02 PM to 7:07 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.16:588:02
213.07:008:00
313.07:017:58
412.97:027:56
512.97:037:54
612.87:047:52
712.87:057:51
812.77:077:49
912.77:087:47
1012.67:097:45
1112.67:107:43
1212.57:117:41
1312.47:127:39
1412.47:147:37
1512.37:157:35
1612.37:167:34
1712.27:177:32
1812.27:187:30
1912.17:197:28
2012.17:217:26
2112.07:227:24
2212.07:237:22
2311.97:247:20
2411.97:257:18
2511.87:267:16
2611.87:287:15
2711.77:297:13
2811.77:307:11
2911.67:317:09
3011.67:327:07

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.31 kWh/m².

For context, solar energy here swings from a low near 1.34 kWh/m² to a high of 6.39 kWh/m² in June across the year — September's 4.31 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
15.0Bright
24.9Bright
34.9Bright
44.9Bright
54.8Bright
64.8Bright
74.7Bright
84.7Bright
94.6Bright
104.6Bright
114.5Bright
124.5Bright
134.4Bright
144.4Bright
154.3Bright
164.3Bright
174.2Bright
184.2Bright
194.1Bright
204.0Bright
214.0Bright
223.9Moderate
233.9Moderate
243.8Moderate
253.8Moderate
263.7Moderate
273.7Moderate
283.6Moderate
293.6Moderate
303.5Moderate
Planning a trip in September

Is September a good time to visit Viveiro?

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

6.4
Sightseeing
3rd-best month of the year
3.8
Beach & pool
3rd-best month of the year

September is a reasonable time to visit Viveiro for sightseeing.

What to pack for Viveiro in September

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

In September, Viveiro sees daytime highs around 21°C and nights near 16°C. Worth packing: rain gear. About 10 days see rain.

rain gear

Sea temperature near Viveiro in September

The nearest coast averages about 19°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 20°C and coldest in March near 13°C.

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

10°15°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan13Bracing
Feb13Bracing
Mar13Bracing
Apr13Bracing
May14Bracing
Jun16Cool
Jul19Cool
Aug20Cool
Sep19Cool
Oct17Cool
Nov15Cool
Dec14Bracing

UV index in Viveiro 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 Viveiro peaks around June 22 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 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 highHighModerateLowJun 22UV 8Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar4Moderate
Apr6High
May6High
Jun8Very high
Jul8Very high
Aug8Very high
Sep6High
Oct4Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Viveiro?

Viveiro sits at 43.7°N, 7.6°W, 30 m above sea level, in Spain. The nearest listed city is Narón, 51 km away.

Topography around Viveiro

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

Within 3 km, the terrain around Viveiro has significant variations in elevation — a maximum elevation change of 539 m around an average of 152 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 903 m; within 80 km, large variations in elevation — a maximum elevation change of 1,199 m.

The land around Viveiro is covered by trees (62%) within 3 km, trees (55%) and water (24%) within 16 km, and water (41%) and trees (38%) within 80 km.

3 km
539 m
16 km
903 m
80 km
1,199 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
September weather nearby: Narón 51 km · Ferrol 55 km · Oleiros 69 km · A Coruña 72 km · Lugo 73 km · Cambre 73 km · Culleredo 76 km · Arteixo 84 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 Viveiro (43.6623°, -7.5934°, elevation 30 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).