August weather forecastHakodate, Japan

August

Weather in August

Hakodate in August maintains the high temperatures seen in July, with a record summer peak between 19.6°C (67.3°F) to 23.4°C (74.1°F). Despite receiving the most rainfall throughout the year, Hakodate's August is still filled with plenty of sunshine. The city's fascinating landscapes, teeming with lush greenery, are particularly enjoyable during this month due to the high visibility. The prevailing high temperatures in August, combined with slightly reduced humidity levels compared to July, marks the end of Hakodate's summer. Through the decrease in rainfall heading into September, a hint at the upcoming autumn season becomes noticeable.

Temperature

The warmest period in Hakodate is August, when temperatures fluctuate between an average high of 23.4°C (74.1°F) and a low of 19.6°C (67.3°F).

Humidity

In Hakodate, the average relative humidity in August is 86%.

Rainfall

August is the month with the most rainfall in Hakodate. Rain falls for 11.9 days and accumulates 25mm (0.98") of precipitation.

Snowfall

In Hakodate, snow does not fall in May through October.

Sea temperature

The month with the warmest seawater is August, with an average sea temperature of 21.8°C (71.2°F).
Note: For the majority of people, swimming in water at 21.8°C (71.2°F) is not enjoyable. The challenge of controlling breathing escalates as the temperature decreases from 21°C (69.8°F) to 15°C (59°F).

Daylight

In August, the average length of the day is 13h and 50min.
On the first day of the month, sunrise is at 04:31 and sunset at 18:55. On the last day of August, in Hakodate, sunrise is at 05:02 and sunset at 18:12 JST.

Sunshine

The average sunshine in August in Hakodate is 8.3h.

UV index

June through September, with an average maximum UV index of 5, are months with the highest UV index in Hakodate, Japan. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: The UV index of 5 during August leads to these advisories:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Heads up! Sand and water reflection magnifies the UV exposure from the Sun.

Updated: Jan 31, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Hakodate's August weather reaches an average high of 23.4°C (74.1°F) and an average low of 19.6°C (67.3°F), making it the warmest month.

In Hakodate, 23.4°C (74.1°F) is the average high-temperature and 19.6°C (67.3°F) is the average low-temperature during August.

The average relative humidity in August in Hakodate is 86%.

The month with the most rainfall is August, when the rain falls for 11.9 days and typically aggregates up to 25mm (0.98") of precipitation.

In Hakodate, Japan, in August, it is raining for 11.9 days, with typically 25mm (0.98") of accumulated precipitation.

In Hakodate, snow does not fall in May through October.

With an average sea temperature of 21.8°C (71.2°F), August is the month with the warmest seawater in Hakodate.

In August, the average sea temperature is 21.8°C (71.2°F). For most, swimming in 21.8°C (71.2°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).

In Hakodate, the average day length in August is 13h and 50min.

In August, on the first day of the month, sunrise is at 04:31 and sunset at 18:55. On the last day of the month, sunrise is at 05:02 and sunset at 18:12 JST.

In August, the average sunshine duration is 8.3h.

The months with the highest UV index are June through September, with an average maximum UV index of 5.

In August, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to the Sun's UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J August S O N D

Jul

August

Sep

Average high temperature

21.3°C

23.4°C

20.9°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

13.2km/h

14.3km/h

14.9km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

11.9

9.4

Average snowfall

0mm

Average snowfall days

Average sea temperature

Average daylight

Average sunshine

Average sunshine days

14.1

14.4

15.5

Average UV index

Average cloud cover

Average visibility

Average temperature in August
Hakodate, Japan

Average high temperature in August: 23.4°C

The warmest month (with the highest average high temperature) is August (23.4°C).
The month with the lowest average high temperature is January (-0.1°C).

Average low temperature in August: 19.6°C

The month with the highest average low temperature is August (19.6°C).
The coldest month (with the lowest average low temperature) is February (-3.5°C).

Average pressure in August
Hakodate, Japan

Average pressure in August: 1009.8mbar

The month with the highest atmospheric pressure is November (1017mbar).
The month with the lowest atmospheric pressure is July (1008.8mbar).

Average wind speed in August
Hakodate, Japan

Average wind speed in August: 13.1km/h

The windiest month (with the highest average wind speed) is December (24.3km/h).
The calmest month (with the lowest average wind speed) is July (12.2km/h).

Average humidity in August
Hakodate, Japan

Average humidity in August: 86%

The month with the highest relative humidity is July (89%).
The month with the lowest relative humidity is October (73%).

Average rainfall in August
Hakodate, Japan

Average rainfall in August: 25mm

The wettest month (with the highest rainfall) is August (25mm).
The driest month (with the least rainfall) is May (12mm).

Average rainfall days in August
Hakodate, Japan

Average rainfall days in August: 11.9 days

The month with the highest number of rainy days is July (13 days).
The month with the least rainy days is January (4.8 days).

Average snowfall in August
Hakodate, Japan

Average snowfall in August: 0mm

The month with the highest snowfall is February (52mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in August
Hakodate, Japan

Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (15.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average sea temperature in August
Hakodate, Japan

Average sea temperature in August: 21.8°C

The best month for swimming (with the highest average sea temperature) is August (21.8°C).
The coldest month (with the lowest average sea temperature) is March (4.9°C).

Average daylight in August /
Average sunshine in August
Hakodate, Japan

Average daylight in August: 13h and 48min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

Average sunshine in August: 8h and 18min

The month with the most sunshine is May (Average sunshine: 8h and 48min).
The months with the least sunshine are January and February (Average sunshine: 3h and 6min).

Average sunshine days in August
Hakodate, Japan

Average sunshine days in August: 14.4 days

The months with the most sunshine days are May and October (17.3 days).
The month with the least sunshine days is February (9.3 days).

Average UV index in August
Hakodate, Japan

Average UV index in August: 5

The months with the highest UV index are June, July, August and September (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).