Ōtsu monthly weather averages

Average daytime temperature

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

Ōtsu average temperature chart (Celsius) Ōtsu average temperature chart (Fahrenheit)
Average monthly temperatures in Ōtsu (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 6.7 7.3 10.9 17.7 22.5 25.6 29.7 31.3 26.7 20.7 15.1 9.6
°F 44.1 45.2 51.7 63.9 72.4 78.2 85.4 88.3 80 69.2 59.1 49.3

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.

Ōtsu monthly rainfall chart (mm) Ōtsu monthly rainfall chart (inches)
Average monthly rainfall in Ōtsu (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 80 82 111 133 138 224 213 121 177 110 76 68
inches 3.2 3.2 4.4 5.2 5.4 8.8 8.4 4.8 7 4.3 3 2.7
Rainy days 22 22 21 17 15 18 19 17 18 15 16 19

Average daily sunshine

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

Ōtsu average daily sunshine chart
Average daily sunshine Ōtsu
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 3.8 4 5.1 5.9 6.6 5 5.5 6.5 4.9 5.2 4.6 4.1

Day / night temperatures

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

Ōtsu average minimum / maximum temperatures (Celsius) Ōtsu average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Ōtsu (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -0.7 -0.3 1.9 7.5 12.3 17.4 21.8 22.7 18.6 11.7 6.1 1.4
Max °C 6.9 7.5 11.2 18 22.7 25.9 29.9 31.5 26.9 20.9 15.3 9.8
Min °F 30.7 31.5 35.3 45.4 54.1 63.2 71.2 72.9 65.4 53.1 43 34.5
Max °F 37.6 38.5 43.7 54.9 63.5 70.9 78.4 80.8 72.9 61.3 51.3 42.1

Sea temperature

The graph below shows the average sea temperature.

Ōtsu average sea temperature chart (Celsius) Ōtsu average sea temperature chart (Fahrenheit)
Average sea temperature around Ōtsu in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 14.6 13.3 13.1 14.4 17.4 21.1 24.5 27.1 25.7 22.6 19.8 17
°F 58.3 55.9 55.6 58 63.3 69.9 76.2 80.8 78.2 72.7 67.7 62.6

Wind speed

The graph below shows the average wind speed.

Ōtsu average winspeed by month (km/h) Ōtsu average winspeed by month (mph)
Average wind speed in Ōtsu (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 10 10 10 10 9 9 8 9 8 8 9 9
mph 6 7 7 6 6 5 5 5 5 5 5 6

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.

Ōtsu relative humidity averages
Average relative humidity in Ōtsu
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
72% 72% 69% 68% 69% 74% 77% 74% 76% 75% 74% 74%

Other monthly averages

UV index Best time to go?

Ōtsu weather stats

Ōtsu weather statistics
Hottest month: August 31.3°C 88.3°F
Driest month: December 68mm 2.7ins
Sunniest month: August 6.5hrs
Coldest month: January 6.7°C 44.1°F
Wettest month: June 224mm 8.8ins
Warmest sea: August 27.1°C 80.8°F
Map showing location of Ōtsu (35.00444, 135.86833)

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