Onsala monthly weather averages

Contents

Average daytime temperature

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

Onsala average temperature chart (Celsius) Onsala average temperature chart (Fahrenheit)
Average monthly temperatures in Onsala (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 1 1.4 4.7 9.7 15.8 19.4 20.3 20 15.9 11.5 6.5 2.9
°F 33.9 34.6 40.4 49.4 60.5 66.9 68.5 67.9 60.7 52.7 43.7 37.3

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.

Onsala monthly rainfall chart (mm) Onsala monthly rainfall chart (inches)
Average monthly rainfall in Onsala (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 63 40 42 44 46 55 72 79 81 81 79 74
inches 2.5 1.6 1.6 1.7 1.8 2.1 2.8 3.1 3.2 3.2 3.1 2.9
Rainy days 16 12 13 11 11 11 12 12 14 15 17 16

Average annual rainfall in Onsala: 823.4mm (324.2 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Onsala

Onsala average daily sunshine chart
Average daily sunshine Onsala
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 1 2 3.7 6 8.2 9.2 8.7 7.6 5.2 3.2 1.9 1.1

Day / night temperatures

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

Onsala average minimum / maximum temperatures (Celsius) Onsala average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Onsala (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -3.4 -3.8 -1.4 2 6.8 10.8 12.4 12.1 9.1 6.2 1.8 -1.7
Max °C 1.2 1.6 4.8 9.9 16.1 19.6 20.5 20.2 16.1 11.7 6.6 3.1
Min °F 26 25.3 29.5 35.5 44.2 51.4 54.2 53.7 48.4 43.1 35.2 29
Max °F 30 30 35.1 42.6 52.5 59.4 61.5 61 54.7 48 39.6 33.3

Sea temperature

The graph below shows the average sea temperature.

Onsala average sea temperature chart (Celsius) Onsala average sea temperature chart (Fahrenheit)
Average sea temperature around Onsala in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 3.2 2.4 2.9 5.8 10.7 15.1 17.6 17.8 15.1 11.7 8.4 5
°F 37.8 36.2 37.2 42.5 51.2 59.1 63.7 64.1 59.1 53 47 41

Wind speed

The graph below shows the average wind speed.

Onsala average winspeed by month (km/h) Onsala average winspeed by month (mph)
Average wind speed in Onsala (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 19 17 19 17 17 17 17 16 19 19 20 19
mph 12 11 12 11 10 10 10 10 12 12 12 12

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.

Onsala relative humidity averages
Average relative humidity in Onsala
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
96% 93% 86% 78% 74% 75% 78% 79% 82% 87% 92% 96%

Other monthly averages

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Beta

Current (hourly) weather 15 day forecast

Onsala weather stats

Onsala weather statistics
Hottest month: July 20.3°C 68.5°F
Driest month: February 40mm 1.6ins
Sunniest month: June 9.2hrs
Coldest month: January 1°C 33.8°F
Wettest month: September 81mm 3.2ins
Warmest sea: August 17.8°C 64°F
Map showing location of Onsala (57.42531, 12.02903) Onsala map pin © Google

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