San Sebastián monthly weather averages

Contents

Average daytime temperature

The bar chart below shows the average monthly peak daytime temperatures at San Sebastián

San Sebastián average temperature chart (Celsius) San Sebastián average temperature chart (Fahrenheit)
Average monthly temperatures in San Sebastián (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 26.6 28.3 30.2 31 30.9 29.3 29.1 29.4 28.9 28.1 27.2 27.2
°F 79.8 82.9 86.4 87.8 87.6 84.8 84.3 85 84 82.5 80.9 81

Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.

Average rainfall & rainy days

The graph below shows the average rainfall and number of rainy days per month.

San Sebastián monthly rainfall chart (mm) San Sebastián monthly rainfall chart (inches)
Average monthly rainfall in San Sebastián (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 17 11 13 49 182 268 194 174 320 182 50 21
inches 0.7 0.4 0.5 1.9 7.2 10.6 7.6 6.8 12.6 7.2 2 0.8
Rainy days 8 6 4 6 14 21 20 20 23 20 12 10

Average annual rainfall in San Sebastián: 1406.167mm (553.6 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in San Sebastián

San Sebastián average daily sunshine chart
Average daily sunshine San Sebastián
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 8.5 9 10.2 10.4 9.7 8.1 8.3 8.1 7.5 7.1 7.3 7.9

Day / night temperatures

The graph below shows the daily range of temperatures for each month.

San Sebastián average minimum / maximum temperatures (Celsius) San Sebastián average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in San Sebastián (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 15.2 15.6 16.7 17.9 19.2 19 19.1 19.1 18.9 18.7 17.4 16.8
Max °C 26.9 28.6 30.6 31.3 31.2 29.6 29.3 29.7 29.2 28.3 27.4 27.5
Min °F 59.3 60.1 62 64.2 66.6 66.2 66.4 66.4 65.9 65.7 63.3 62.2
Max °F 69.8 71.8 74.5 76.3 77.4 75.7 75.6 75.9 75.2 74.3 72.3 71.8

Sea temperature

The graph below shows the average sea temperature.

San Sebastián average sea temperature chart (Celsius) San Sebastián average sea temperature chart (Fahrenheit)
Average sea temperature around San Sebastián in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 27.6 27.6 28.1 28.9 29.3 29.5 29.4 29.7 29.6 29.2 28.7 28.1
°F 81.6 81.7 82.6 84 84.8 85.1 84.9 85.4 85.2 84.6 83.6 82.5

Wind speed

The graph below shows the average wind speed.

San Sebastián average winspeed by month (km/h) San Sebastián average winspeed by month (mph)
Average wind speed in San Sebastián (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 23 23 23 22 19 18 20 19 17 18 19 21
mph 14 14 14 14 12 11 12 12 11 11 12 13

A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.

Relative humidity

The graph below shows the average relative humidity.

San Sebastián relative humidity averages
Average relative humidity in San Sebastián
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
68% 66% 58% 58% 64% 76% 75% 75% 77% 79% 77% 72%

Other monthly averages

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

San Sebastián weather stats

San Sebastián weather statistics
Hottest month: May 30.9°C 87.6°F
Driest month: February 11mm 0.4ins
Sunniest month: March 10.2hrs
Coldest month: January 26.6°C 79.9°F
Wettest month: September 320mm 12.6ins
Warmest sea: August 29.7°C 85.5°F
Map showing location of San Sebastián (14.25, -87.63333) San Sebastián map pin © Google

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