Average daily temperature during the week of 23 June 2025 - 29 June 2025 was 23 °C (73 °F), average minimal (night) temperature was 16 °C (61 °F). Both the daily and night temperatures in Hakodate are slightly above the long-term average, which is around 21 °C (70 °F) and 14 °C (57 °F) respectively. In the middle, Wednesday was hottest day of the week. The average temperatures during different times of day (local time) were following: 7am 19 °C (66 °F), 10am 21 °C (70 °F), 1pm 22 °C (72 °F), 4pm 22 °C (72 °F), 7pm 20 °C (68 °F), 10pm 18 °C (64 °F).

The week had 3 days without rain, 3 days with light rain and 1 day with moderate rain. The total precipitation for the week in Hakodate was 14 mm (0.55 in), which is below the area's average of 25 mm (0.98 in). During the daytime (from dawn to dusk), there was 55 % cloud coverage on average. There was a meteorological observation of mist and fog.

The wind's speed averaged 2.5 m/s. The air pressure was 1002 hpa - 1015 hpa. On average, the air humidity in Hakodate was 87 %.

During the daytime (from dawn to dusk), there were in average: 4.5 hours clear skies, 2 hours partially overcast skies, 8 hours overcast skies and 1.5 hours rainy weather. Average time of sunrise was 04:03, average time of sunset was 19:15.

Weather overview

Hakodate (Japan) in general has a mild continental climate. Temperatures during the day are in the range from 1 °C (35 °F) in January to 26 °C (78 °F) in August. The least rainy month in Hakodate is June with its 10 days of rain, the rainiest month is January, when it rains 19 days. The highest night temperatures could be experienced in August with 19 °C (66 °F), the lowest in January with -5 °C (23 °F).

January weather

The ongoing wet season is noticeable in Hakodate. The minimum of the day temperature is observable, and the night temperature reaches its minimum as well in January. The rainfall amount descents similarly to the previous month, its value is 79 mm (3.12 in), while the maximum of the number of rainy days is observable in this month.

February weather

The day temperature starts to rise, the value of this measure is 2 °C (36 °F) in Hakodate. There is pending wet season. The rainfall amount reaches its minimum, with its value being 65 mm (2.58 in), while the number of rainy days descent's start could be observed, its value is 17 days. The rise of the number of sun hours (without clouds) can be observed, its value is 3 hours.

March weather

The day temperature rises similarly to the previous month, with its value of 6 °C (42 °F) in Hakodate, while the night temperature rise's start could be observed, with its value of -2 °C (29 °F). The number of rainy days descents similarly to the previous month, its value is 14 days. The number of sun hours (without clouds) rises similarly to the previous month, with its value being 5 hours.

April weather

The rise of the day temperature can be observed, its value is 12 °C (54 °F) in Hakodate, and the night temperature rises similarly to the previous month as well, with its value being 3 °C (38 °F). The number of rainy days descents similarly to the previous month, while the beginning of the rise of the rainfall amount could be noticed, the value of this measure is 83 mm (3.27 in). The minimum of the humidity is observable, with its value of 71 %.

May weather

The day temperature rises similarly to the previous month, with its value being 17 °C (62 °F) in Hakodate, and the rise of the night temperature can be observed too, with its value being 8 °C (46 °F). The rainfall amount continues to rise. The number of sun hours (without clouds) reaches its maximum in May.

June weather

The tourist season slowly starts in Hakodate. The rise of the day temperature can be observed, with its value being 20 °C (68 °F), and the night temperature rises similarly to the previous month too, its value is 12 °C (54 °F). The number of rainy days reaches its minimum, the value of this measure is 10 days, while the rainfall amount descent's start could be observed in this month.

July weather

The day temperature continues to rise, with its value of 23 °C (74 °F) in Hakodate, and the rise of the night temperature can be observed too, with its value being 17 °C (62 °F). The number of rainy days rise's start could be observed, the value of this measure is 11 days, and the rainfall amount rise's start could be observed too. There is pending tourist season.

August weather

The tourist season is close to its peak in Hakodate. The maximum of the day temperature is observable, with its value of 26 °C (78 °F), and the maximum of the night temperature is observable too in this month. The number of rainy days rises similarly to the previous month, with its value of 11 days. The wind speed is on its minimum in August.

September weather

The tourist season is close to its peak in Hakodate. The day temperature descent's start could be observed, and the beginning of the descent of the night temperature could be noticed as well, its value is 15 °C (59 °F). The number of rainy days continues to rise, with its value of 13 days, while the rainfall amount reaches its maximum, its value is 164 mm (6.46 in).

October weather

The day temperature descents similarly to the previous month in Hakodate, and the night temperature descents similarly to the previous month too, with its value of 8 °C (47 °F). The beginning of the descent of the rainfall amount could be noticed in October.

November weather

The wet season is about to start in November in Hakodate. The day temperature descents similarly to the previous month, its value is 10 °C (51 °F). The rainfall amount starts to rise, with its value of 114 mm (4.49 in), and the number of rainy days rise's start could be observed too, with its value being 16 days. The beginning of the descent of the number of sun hours (without clouds) could be noticed, with its value of 3 hours.

December weather

The ongoing wet season is noticeable in Hakodate. The day temperature continues to descent, the value of this measure is 4 °C (39 °F), and the descent of the night temperature can be observed too, with its value being -3 °C (27 °F). The rainfall amount descent's start could be observed, with its value of 93 mm (3.66 in). The minimum of the number of sun hours (without clouds) is observable, with its value being 2 hours.

How windy is it in Hakodate in April?

In Hakodate in April, there will be an average wind scale of 4.

What is the average number of rainy days in May in Hakodate?

There are 11 days, which are rainy in May in Hakodate, that is, days with precipitation more than 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 2.5 days of the week, or in general - 35 % days.

Is June a good month to visit Hakodate?

There are good conditions for visiting in Hakodate in June. You can expect just 10 days of rain during the month, taking an umbrella is not necessary. There are some people, who may feel a slight chill at 20 °C (68 °F), but others will feel perfectly fine. The temperature of 12 °C (54 °F) at night may make it better to dine inside or to put on more clothes for a dinner outside.

What is the sea temperature in Hakodate in July?

The temperature of the sea in July in Hakodate is 18 °C (64 °F). At this sea temperature, swimming probably won't be the best experience. You probably won't like to stay in water for a long time. On the other hand, there are a minority of people who seek these conditions.

Is August part of the wet season in Hakodate?

No, there is no wet season in Hakodate in August - you can expect 11 days of rain during the month.

What temperature can I expect during the day in Hakodate in September?

In Hakodate in September, the average daily temperatures will be 23 °C (74 °F). A comfortable temperature for most people, where it is neither too cold nor too hot, and a large number of activities can be carried out comfortably, including sunbathing by the water. Lighter clothing will be suitable - shorts, skirts, t-shirts, jackets; a light sweater and long trousers may also be useful.

What is the air temperature in October in Hakodate at night?

The average night temperature in October in Hakodate is 8 °C (47 °F). The nights will be cool, layers of clothes will be needed for evening and morning walks, the hotel should be equipped with heating.