Month guide · Viveiro, Spain

Viveiro in September: weather and what to expect

September is the last month of the year with average highs above 20°C in Viveiro. September highs in Viveiro are now 1.3°C warmer than in 1991-2000. In September, Viveiro averages highs of 21°C and lows of 16°C, with about 12 rainy days and 77 mm of rain. Crowds in Galicia are low.

Based on 1991-2020 climate data · Updated 2 November 2026 · Sources

Average high Town-level21°CLow 16°C
Sea temperature Modelled19°COpen sea nearby, average for the month
Rainy days Town-level1277 mm in total
UV index Modelled5Moderate at noon on a clear day
Crowds RegionalLowGalicia as a whole

Is September a good time to visit?

Good for

No verdicts for Viveiro in September yet. They only use climate values that are precise enough to judge with.

Not ideal for

  • Reliable dry weather
    About 12 rainy days in the month

Daily highs through September

Town-level · ERA5-Land 1991-2020
Usual range (8 in 10 years)Typical high

Highs fall about 2°C over the month.

September in detail

Town-level · ERA5-Land
MeasureAugustSeptemberOctober
Average high23°C21°C19°C
Average low17°C16°C13°C
Rainy days (at least 1 mm)111216
Total rainfall59 mm77 mm118 mm
Daylight (mid-month)14 h 02 min12 h 35 min11 h 06 min

Crowds, holidays and daylight

Visitor level RegionalLowNights booked through online platforms in Galicia in September 2025: about 35% of the busiest month.

Public holidays in September 2027

No national or regional public holidays.

Local (municipal) holidays are not included.

Daylight mid-month Exact12 h 35 minSunrise to sunset, calculated from the town's coordinates.
PlaceHighRain daysFrom Viveiro
Adamuz, Andalusia30°C4678 km
Valdelacalzada, Extremadura30°C4536 km
Puebla de la Calzada, Extremadura30°C4536 km
Montijo, Extremadura29°C4535 km
La Garrovilla, Extremadura29°C4536 km

The nearest towns with a warmer September. Distances are in a straight line.

How September is changing

Town-level · ERA5-Land

September highs are 1.3°C warmer than in 1991-2000, and September rainfall is down about 35% (2016-2025 against 1991-2000). Days above 25°C in September went from 1.3 to 3.6 a year on average.

Questions about Viveiro in September

Is September a good time to visit Viveiro?

It is less suited to reliable dry weather (about 12 rainy days in the month).

How warm is Viveiro in September?

Average highs are 21°C and lows 16°C. August averages 23°C and October 19°C.

Does it rain much in Viveiro in September?

About 12 days have at least 1 mm of rain, with 77 mm in total over the month.

Is Viveiro busy in September?

In September 2025, nights booked through online platforms in Galicia were about 35% of the busiest month, which we count as low. The figure is for the whole region and leaves out hotels.

How long are the days in Viveiro in September?

About 12 h 35 min from sunrise to sunset in the middle of the month.

Sources

Climate: ERA5-Land, Copernicus Climate Change Service (C3S) Climate Data Store, contains modified Copernicus information (CC BY 4.0). Crowds: Eurostat, nights spent in short-stay accommodation booked through online platforms (tour_ce_omn12) (CC BY 4.0). Place names and populations: GeoNames (CC BY 4.0). Climate averages cover 1991-2020. Daylight: calculated from the town's coordinates. Full methodology