Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average sea temperature in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
April's arrival in Hakodate signals a subtle increase in average high-temperatures, moving from March's wintry 3.6°C (38.5°F) to a chilly 8.4°C (47.1°F). An average low-temperature of 4.1°C (39.4°F) characterizes Hakodate's April nights.Humidity
In April, the average relative humidity is 76%.Rainfall
In Hakodate, during April, the rain falls for 10.8 days and regularly aggregates up to 15mm (0.59") of precipitation. Throughout the year, there are 112.7 rainfall days, and 203mm (7.99") of precipitation is accumulated.Snowfall
Months with snowfall in Hakodate, Japan, are January through April, November and December. April is the last month it regularly snows in Hakodate, Japan. During 2.2 snowfall days, in April, Hakodate aggregates 7mm (0.28") of snow. In Hakodate, during the entire year, snow falls for 57.1 days and aggregates up to 179mm (7.05") of snow.Sea temperature
In Hakodate, the average seawater temperature in April is 7°C (44.6°F).Note: You can swim in 7°C (44.6°F) below 10°C (50°F) with proper thermal wear; failing that, the cold shock and respiratory challenges are nearly certain. A short span at 13°C (55.4°F) without it is tough.
Daylight
In Hakodate, the average length of the day in April is 13h and 20min.On the first day of the month, sunrise is at 05:19 and sunset at 18:02. On the last day of April, in Hakodate, sunrise is at 04:34 and sunset at 18:34 JST.
Sunshine
In Hakodate, the average sunshine in April is 8.7h.UV index
In Hakodate, the average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The daily high UV index of 3 in April translates into this advice:
Exercise prevention - Precautions against solar damage are endorsed. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Frequently asked questions
What are the temperatures in Hakodate in April?
What is the average humidity in April in Hakodate?
How much does it rain in Hakodate in April?
What is the last month it snows in Hakodate?
What is the water temperature in April in Hakodate?
How many hours of daylight does Hakodate have in April?
When are sunrise and sunset in April in Hakodate?
How many hours of sunshine does Hakodate have in April?
How high is the UV index in April in Hakodate?
Average temperature in April
Hakodate, Japan
- Average high temperature in April: 8.4°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 April: 4.1°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 April
Hakodate, Japan
- Average pressure in April: 1013.1mbar
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 April
Hakodate, Japan
- Average wind speed in April: 17.8km/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 April
Hakodate, Japan
- Average humidity in April: 76%
The month with the highest relative humidity is July (89%).
The month with the lowest relative humidity is October (73%).
Average rainfall in April
Hakodate, Japan
- Average rainfall in April: 15mm
The wettest month (with the highest rainfall) is August (25mm).
The driest month (with the least rainfall) is May (12mm).
Average rainfall days in April
Hakodate, Japan
- Average rainfall days in April: 10.8 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 April
Hakodate, Japan
- Average snowfall in April: 7mm
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 April
Hakodate, Japan
- Average snowfall days in April: 2.2 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 April
Hakodate, Japan
- Average sea temperature in April: 7°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 April /
Average sunshine in April
Hakodate, Japan
- Average daylight in April: 13h and 2min
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 April: 8h and 4min
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 April
Hakodate, Japan
- Average sunshine days in April: 16.3 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 April
Hakodate, Japan
- Average UV index in April: 3
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).
Average cloud cover in April
Hakodate, Japan
- Average cloud cover in April: 42
The month with the most cloud cover is January (Cloud cover 69).
The months with the least cloud cover are September and October (Cloud cover 38).
Average visibility in April
Hakodate, Japan
- Average visibility in April: 9km
The months with the highest visibility are September and October (10km).
The month with the lowest visibility is July (8km).
Hakodate, Japan
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