August weather forecastOtaru, Japan
August
Weather in August
August maintains the city's wave of warm weather, even surpassing July's average high temperatures. However, rainfall hits its peak at a staggering 119mm (4.69") for the month, setting it as the wettest period for Otaru. Sea temperatures continue to be inviting, presenting ideal conditions for water activities. Humidity levels remain high, contributing to the overall warmth of the city. Round-the-clock cloud cover combined with extensive sunshine hours sets a picturesque stage for Otaru's coastal views.Temperature
Otaru's warmest temperatures are experienced in August, with average high temperatures of 23°C (73.4°F) and lows of 16.8°C (62.2°F).Humidity
The average relative humidity in August is 87%.Rainfall
The month with the most rainfall is August, when the rain falls for 19.1 days and typically aggregates up to 119mm (4.69") of precipitation.Snowfall
In Otaru, snow does not fall in June through September.Sea temperature
The month with the warmest seawater in Otaru, Japan, is August, with an average sea temperature of 21.6°C (70.9°F).Note: Swimming in water that is 21.6°C (70.9°F) is not enjoyable for most. Breathing becomes more challenging to manage as the water temperature dips from 21°C (69.8°F) to 15°C (59°F).
Daylight
In August, the average length of the day in Otaru is 13h and 55min.On the first day of August, sunrise is at 04:26 and sunset at 18:58. On the last day of the month, sunrise is at 04:59 and sunset at 18:13 JST.
Sunshine
The months with the most sunshine in Otaru, Japan, are May and August, with an average of 8.4h of sunshine.UV index
June through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A daily high UV index of 5 in August leads to these guidelines:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Alert! Sand and water increase UV exposure due to their reflective properties.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Otaru, Japan
- Average high temperature in August: 23°C
The warmest month (with the highest average high temperature) is August (23°C).
The month with the lowest average high temperature is January (-3.3°C).
- Average low temperature in August: 16.8°C
The month with the highest average low temperature is August (16.8°C).
The coldest month (with the lowest average low temperature) is February (-8.2°C).
Average pressure in August
Otaru, Japan
- Average pressure in August: 1009.5mbar
The month with the highest atmospheric pressure is November (1016.1mbar).
The month with the lowest atmospheric pressure is July (1008.5mbar).
Average wind speed in August
Otaru, Japan
- Average wind speed in August: 9.7km/h
The windiest month (with the highest average wind speed) is December (19km/h).
The calmest month (with the lowest average wind speed) is July (9.2km/h).
Average humidity in August
Otaru, Japan
- Average humidity in August: 87%
The month with the highest relative humidity is July (88%).
The months with the lowest relative humidity are April and October (79%).
Average rainfall in August
Otaru, Japan
- Average rainfall in August: 119mm
The wettest month (with the highest rainfall) is August (119mm).
The driest month (with the least rainfall) is April (43mm).
Average rainfall days in August
Otaru, Japan
- Average rainfall days in August: 19.1 days
The month with the highest number of rainy days is July (20.2 days).
The month with the least rainy days is February (2.5 days).
Average snowfall in August
Otaru, Japan
- Average snowfall in August: 0mm
The month with the highest snowfall is January (369mm).
The months with the least snowfall are 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 (26 days).
The months with the least 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).
The 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: 13h and 54min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in August: 8h and 24min
The months with the most sunshine are May and August (Average sunshine: 8h and 24min).
The month with the least sunshine is January (Average sunshine: 1h and 12min).
Average sunshine days in August
Otaru, Japan
- Average sunshine days in August: 9.9 days
The month with the most sunshine days is May (14.8 days).
The month with the least sunshine days is January (3.1 days).
Average UV index in August
Otaru, Japan
- Average UV index in August: 5
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in August
Otaru, Japan
- Average cloud cover in August: 49
The month with the most cloud cover is January (Cloud cover 89).
The month with the least cloud cover is September (Cloud cover 42).
Average visibility in August
Otaru, Japan
- Average visibility in August: 9km
The month with the highest visibility is October (10km).
The month with the lowest visibility is January (7km).
