Climate and monthly weather forecastIshikari, Japan
Climate and monthly weather forecast
Weather in January
January, the same as December, in Ishikari, Japan, is a freezing cold winter month, with an average temperature fluctuating between -2.8°C (27°F) and -7.9°C (17.8°F). In Ishikari, January is the month with the lowest recorded average temperatures, measuring a high of -2.8°C (27°F) and a low of -7.9°C (17.8°F). Weather in January »Weather in February
February, the last month of the winter in Ishikari, is another freezing cold month, with temperature in the range of an average low of -8.5°C (16.7°F) and an average high of -2.5°C (27.5°F). February begins with an average high-temperature of a still subzero cold -2.5°C (27.5°F), reflecting close similarity to the preceding month. Weather in February »Weather in March
March, the first month of the spring in Ishikari, is an icy month, with an average temperature varying between 1.3°C (34.3°F) and -4.8°C (23.4°F). In March, the meteorological conditions subtly change with the average high-temperature edging from a freezing cold -2.5°C (27.5°F) in February to a wintry 1.3°C (34.3°F). Weather in March »Weather in April
April in Ishikari, Japan, is a frosty spring month, with temperature in the range of an average high of 8.3°C (46.9°F) and an average low of 1.7°C (35.1°F). April's arrival coincides with a rise in the average high-temperature, moving from March's wintry 1.3°C (34.3°F) to a frosty 8.3°C (46.9°F). Weather in April »Weather in May
The last month of the spring, May, is a refreshing month in Ishikari, Japan, with an average temperature ranging between min 7.1°C (44.8°F) and max 15.2°C (59.4°F). As May arrives, Ishikari's weather shows an increase in high-temperatures, moving from April's frosty 8.3°C (46.9°F) to a mild 15.2°C (59.4°F). Weather in May »Weather in June
The first month of the summer, June, is a refreshing month in Ishikari, Japan, with an average temperature fluctuating between 18.9°C (66°F) and 11.3°C (52.3°F). June's arrival sees a mild rise in the average high-temperature, transitioning from May's refreshing 15.2°C (59.4°F) to a comfortable 18.9°C (66°F). Weather in June »Weather in July
July in Ishikari, Japan, is a warm summer month, with an average temperature varying between 23.1°C (73.6°F) and 15.8°C (60.4°F). July's onset brings a subtle temperature rise, moving from a comfortable 18.9°C (66°F) in June to a moderately hot 23.1°C (73.6°F). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Ishikari, Japan, with an average temperature varying between 23.7°C (74.7°F) and 17°C (62.6°F). In Ishikari, August is the month with the highest recorded average temperatures, measuring a high of 23.7°C (74.7°F) and a low of 17°C (62.6°F). Weather in August »Weather in September
September, the first month of the autumn in Ishikari, is still a pleasant month, with temperature in the range of an average high of 20.2°C (68.4°F) and an average low of 13.3°C (55.9°F). Ishikari, Japan, observes a small decrease in the average high-temperature with the arrival of September, falling from August's moderately hot 23.7°C (74.7°F) to an agreeable 20.2°C (68.4°F). Weather in September »Weather in October
October, like September, is a moderate autumn month in Ishikari, Japan, with an average temperature ranging between max 13.5°C (56.3°F) and min 7.2°C (45°F). The shift from September to October involves a decrease in the average high-temperature, from an agreeable 20.2°C (68.4°F) to a mild 13.5°C (56.3°F). Weather in October »Weather in November
The last month of the autumn, November, is another chilly month in Ishikari, Japan, with an average temperature fluctuating between 1.4°C (34.5°F) and 6.1°C (43°F). The transition into November is accompanied by a temperature decrease, with the average high-temperature shifting from a moderate 13.5°C (56.3°F) in October to a frosty 6.1°C (43°F). Weather in November »Weather in December
December, the first month of the winter in Ishikari, is still a freezing cold month, with an average temperature ranging between min -4.7°C (23.5°F) and max -0.4°C (31.3°F). A subtle decrease in the average high-temperature marks December, falling from November's chilly 6.1°C (43°F) to a freezing cold -0.4°C (31.3°F). Weather in December »Updated: Jan 31, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
The coldest period tends to be January, when average temperatures fluctuate between a high of -2.8°C (27°F) and a low of -7.9°C (17.8°F).
The months with the highest humidity in Ishikari are January and July, with an average relative humidity of 87%.
In Ishikari, Japan, during the entire year, the rain falls for 169.9 days and collects up to 854mm (33.62") of precipitation.
January through May, October through December are months with snowfall in Ishikari, Japan.
January is the month with the most snowfall. Snow falls for 27.6 days and accumulates 377mm (14.84") of snow.
Throughout the year, in Ishikari, there are 111.1 snowfall days, and 1455mm (57.28") of snow is accumulated.
With an average of 2h of sunshine, January has the least sunshine of the year in Ishikari, Japan.
The months with the lowest UV index in Ishikari, Japan, are January, February, November and December, with an average maximum UV index of 1.
February and March, with an average sea temperature of 5.3°C (41.5°F), are months with the coldest seawater.
April and October, with an average relative humidity of 77%, are the least humid months in Ishikari.
The month with the least rainfall in Ishikari, Japan, is April, when the rain falls for 14.6 days and typically collects 45mm (1.77") of precipitation.
The months with the most sunshine in Ishikari are May and August, with an average of 9h of sunshine.
In Ishikari, Japan, snow does not fall in June through September.
June has the longest days of the year, with an average of 15h and 18min of daylight.
The month with the highest UV index in Ishikari, Japan, is July, with an average maximum UV index of 6.
August is Ishikari's warmest month, registering average high temperatures of 23.7°C (74.7°F) and lows of 17°C (62.6°F).
August is the month with the most rainfall in Ishikari. Rain falls for 19.8 days and accumulates 123mm (4.84") of precipitation.
With an average sea temperature of 21.6°C (70.9°F), August is the month with the warmest seawater in Ishikari, Japan.
With an average of 9h and 6min of daylight, December has the shortest days of the year.
Ishikari, Japan, does not utilize Daylight Saving Time (DST). JST timezone is used over the entire year.
Average temperature
Ishikari, Japan
The warmest month (with the highest average high temperature) is August (23.7°C).
The month with the lowest average high temperature is January (-2.8°C).
The month with the highest average low temperature is August (17°C).
The coldest month (with the lowest average low temperature) is February (-8.5°C).
Average pressure
Ishikari, Japan
- Average pressure in January:
1013.2mbar - Average pressure in February:
1014.9mbar - Average pressure in March:
1013.3mbar - Average pressure in April:
1012.2mbar - Average pressure in May:
1010.2mbar - Average pressure in June:
1008.8mbar
- Average pressure in July:
1008.5mbar - Average pressure in August:
1009.6mbar - Average pressure in September:
1013.4mbar - Average pressure in October:
1015.9mbar - Average pressure in November:
1016mbar - Average pressure in December:
1012.9mbar
The month with the highest atmospheric pressure is November (1016mbar).
The month with the lowest atmospheric pressure is July (1008.5mbar).
Average wind speed
Ishikari, Japan
- Average wind speed in January:
15.5km/h - Average wind speed in February:
15.3km/h - Average wind speed in March:
14.4km/h - Average wind speed in April:
14.3km/h - Average wind speed in May:
12.7km/h - Average wind speed in June:
11km/h
- Average wind speed in July:
10.1km/h - Average wind speed in August:
10.1km/h - Average wind speed in September:
11.1km/h - Average wind speed in October:
14.6km/h - Average wind speed in November:
15.4km/h - Average wind speed in December:
16.9km/h
The windiest month (with the highest average wind speed) is December (16.9km/h).
The calmest months (with the lowest average wind speed) are July and August (10.1km/h).
Average humidity
Ishikari, Japan
The months with the highest relative humidity are January and July (87%).
The months with the lowest relative humidity are April and October (77%).
Average rainfall
Ishikari, Japan
The wettest month (with the highest rainfall) is August (123mm).
The driest month (with the least rainfall) is April (45mm).
Average rainfall days
Ishikari, Japan
- Average rainfall days in January:
4.5 days - Average rainfall days in February:
4.8 days - Average rainfall days in March:
11.2 days - Average rainfall days in April:
14.6 days - Average rainfall days in May:
16.8 days - Average rainfall days in June:
17.3 days
- Average rainfall days in July:
19.9 days - Average rainfall days in August:
19.8 days - Average rainfall days in September:
17.4 days - Average rainfall days in October:
18.8 days - Average rainfall days in November:
15.1 days - Average rainfall days in December:
9.7 days
The month with the highest number of rainy days is July (19.9 days).
The month with the least rainy days is January (4.5 days).
Average snowfall
Ishikari, Japan
The month with the highest snowfall is January (377mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days
Ishikari, Japan
- Average snowfall days in January:
27.6 days - Average snowfall days in February:
23.5 days - Average snowfall days in March:
19.2 days - Average snowfall days in April:
5.3 days - Average snowfall days in May:
0.3 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.5 days - Average snowfall days in November:
11 days - Average snowfall days in December:
23.7 days
The month with the highest number of snowfall days is January (27.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature
Ishikari, Japan
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 / Average sunshine
Ishikari, Japan
- Average daylight in January:
9h and 24min - Average daylight in February:
10h and 30min - Average daylight in March:
11h and 54min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 42min - Average daylight in June:
15h and 18min
- Average daylight in July:
15h and 0min - Average daylight in August:
13h and 54min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 42min - Average daylight in December:
9h and 6min
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 January:
2h - Average sunshine in February:
2h and 24min - Average sunshine in March:
4h and 24min - Average sunshine in April:
8h and 24min - Average sunshine in May:
9h - Average sunshine in June:
8h and 12min
- Average sunshine in July:
8h and 12min - Average sunshine in August:
9h - Average sunshine in September:
8h and 12min - Average sunshine in October:
6h and 36min - Average sunshine in November:
3h and 48min - Average sunshine in December:
2h and 24min
The months with the most sunshine are May and August (Average sunshine: 9h).
The month with the least sunshine is January (Average sunshine: 2h).
Average sunshine days
Ishikari, Japan
- Average sunshine days in January:
2.5 days - Average sunshine days in February:
3.5 days - Average sunshine days in March:
6.3 days - Average sunshine days in April:
10.4 days - Average sunshine days in May:
12.1 days - Average sunshine days in June:
9.6 days
- Average sunshine days in July:
8.3 days - Average sunshine days in August:
8.3 days - Average sunshine days in September:
8.5 days - Average sunshine days in October:
9.9 days - Average sunshine days in November:
5.5 days - Average sunshine days in December:
2.2 days
The month with the most sunshine days is May (12.1 days).
The month with the least sunshine days is December (2.2 days).
Average UV index
Ishikari, Japan
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover
Ishikari, Japan
The month with the most cloud cover is January (Cloud cover 81).
The month with the least cloud cover is September (Cloud cover 37).
Average visibility
Ishikari, Japan
The month with the highest visibility is October (10km).
The months with the lowest visibility are January, February and December (7km).
