Otaru
Japan
Long-term weather forecast
Long-term weather forecast

August weather forecast and climate
Otaru, Japan

August, the last month of the summer, in Otaru, is another warm month, with temperature in the range of an average high of 25.6°C (78.1°F) and an average low of 18.4°C (65.1°F).

Temperature

August is the warmest month, with an average high-temperature of 25.6°C (78.1°F) and an average low-temperature of 18.4°C (65.1°F).

Humidity

The average relative humidity in August is 78%.

Rainfall

In Otaru, in August, it is raining for 10.2 days, with typically 117.7mm (4.6") of accumulated precipitation. Throughout the year, in Otaru, there are 193 rainfall days, and 1235mm (48.6") of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Sea temperature

August is the month with the warmest seawater in Otaru, Japan, with an average sea temperature of 21.6°C (70.9°F).
Note: For most, swimming in 21.6°C (70.9°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).

Daylight

In Otaru, the average length of the day in August is 13.9h.

Sunshine

In August, the average sunshine is 5.5h.

What is the warmest month in Otaru?

August is the warmest month in Otaru, with an average high-temperature of 25.6°C (78.1°F) and an average low-temperature of 18.4°C (65.1°F).

What is the temperature in August in Otaru?

In August, in Otaru, Japan, the average high-temperature is 25.6°C (78.1°F), and the average low-temperature is 18.4°C (65.1°F).

What is the average humidity in August in Otaru?

The average relative humidity in August in Otaru is 78%.

How much does it rain in Otaru in August?

In Otaru, Japan, in August, during 10.2 rainfall days, 117.7mm (4.6") of precipitation is typically accumulated.

When it does not snow in Otaru?

In Otaru snow does not fall in May through September.

When is the sea warmest in Otaru?

With an average sea temperature of 21.6°C (70.9°F), August is the month with the warmest seawater.

How cold is the water in August in Otaru?

In August, the average sea temperature is 21.6°C (70.9°F). For swimming, a surface water temperature of 21.6°C (70.9°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

How many hours of daylight does Otaru have in August?

In August, the average length of the day in Otaru is 13.9h.

How long on average sun shines in August in Otaru?

In Otaru, the average sunshine in August is 5.5h.
Average temperature in August - Otaru, Japan
  • Average high temperature in August: 25.6°C

The warmest month (with the highest average high temperature) is August (25.6°C).
The month with the lowest average high temperature is January (-0.7°C).

  • Average low temperature in August: 18.4°C

The month with the highest average low temperature is August (18.4°C).
The coldest month (with the lowest average low temperature) is January (-6.1°C).

Average humidity in August - Otaru, Japan
  • Average humidity in August: 78%

The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is April (64%).

Average rainfall in August - Otaru, Japan
  • Average rainfall in August: 117.7mm

The wettest month (with the highest rainfall) is November (146.8mm).
The driest month (with the lowest rainfall) is June (46.3mm).

Average rainfall days in August - Otaru, Japan
  • Average rainfall days in August: 10.2 days

The month with the highest number of rainy days is January (25.5 days).
The month with the lowest number of rainy days is June (8.6 days).

Average snowfall in August - Otaru, Japan
  • Average snowfall in August: 0mm

The month with the highest snowfall is January (1940mm).
Months with the lowest snowfall are May, June, July, August and September (0mm).

Average snowfall days in August - Otaru, Japan
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (29.4 days).
Months with the lowest number of snowfall days are June, July, August and September (0 days).

Average sea temperature in August - Otaru, Japan
  • Average sea temperature in August: 21.6°C

The best month for swimming (with the highest average sea temperature) is August (21.6°C).
Coldest months (with the lowest average sea temperature) are February and March (5.3°C).

Average daylight in August / Average sunshine in August - Otaru, Japan
  • Average daylight in August: 13.9h

The month with the longest days is June (Average daylight: 15.3h).
The month with shortest days is December (Average daylight: 9.1h).

  • Average sunshine in August: 5.5h

The month with most sunshine is May (Average sunshine: 6.5h).
The month with least sunshine is December (Average sunshine: 2h).