Climate and monthly weather forecastTomamae, Japan
Climate and monthly weather forecast
Weather in January
January, the same as December, in Tomamae, Japan, is a freezing cold winter month, with an average temperature fluctuating between -6.2°C (20.8°F) and -2.5°C (27.5°F). The temperature hits its lowest levels in January and February, recording an average high-temperature of -2.5°C (27.5°F). Weather in January »Weather in February
The last month of the winter, February, is also a subzero cold month in Tomamae, Japan, with an average temperature ranging between max -2.5°C (27.5°F) and min -6.6°C (20.1°F). During January and February, Tomamae registers its lowest temperatures, averaging a high of -2.5°C (27.5°F). Weather in February »Weather in March
The first month of the spring, March, is a wintry month in Tomamae, Japan, with an average temperature ranging between max 1.1°C (34°F) and min -3°C (26.6°F). The onset of March marks a slight increase in the average high-temperature, moving from a freezing cold -2.5°C (27.5°F) in February to an icy 1.1°C (34°F). Weather in March »Weather in April
April in Tomamae, Japan, is a chilly spring month, with an average temperature ranging between max 6.3°C (43.3°F) and min 2.1°C (35.8°F). With the onset of April, Tomamae's average high-temperature experiences a rise, moving from March's wintry 1.1°C (34°F) to a chilly 6.3°C (43.3°F). Weather in April »Weather in May
May, the last month of the spring in Tomamae, is a cool month, with an average temperature fluctuating between 7.3°C (45.1°F) and 12.3°C (54.1°F). With the onset of May, Tomamae's average high-temperature sees a rise, moving from April's chilly 6.3°C (43.3°F) to a cool 12.3°C (54.1°F). Weather in May »Weather in June
June, the first month of the summer in Tomamae, is an enjoyable month, with temperature in the range of an average low of 11.4°C (52.5°F) and an average high of 16.7°C (62.1°F). Tomamae in June experiences a slight uptick in the average high-temperature, adjusting from May's cool 12.3°C (54.1°F) to a refreshing 16.7°C (62.1°F). Weather in June »Weather in July
July in Tomamae, Japan, is a pleasant summer month, with an average temperature ranging between min 15.9°C (60.6°F) and max 20.9°C (69.6°F). The shift from June to July introduces a subtle increase in the average high-temperature, moving from a comfortable 16.7°C (62.1°F) to a pleasant 20.9°C (69.6°F). Weather in July »Weather in August
August, the last month of the summer in Tomamae, is also an agreeable month, with an average temperature varying between 22.5°C (72.5°F) and 17.5°C (63.5°F). Tomamae's August weather, marked by an average high temperature of 22.5°C (72.5°F) and an average low temperature of 17.5°C (63.5°F), is the warmest in the year. Weather in August »Weather in September
September, the first month of the autumn in Tomamae, is also an enjoyable month, with an average temperature varying between 14.9°C (58.8°F) and 19.5°C (67.1°F). Tomamae's progression into September involves a gentle drop in the average high-temperature, from an agreeable 22.5°C (72.5°F) in August to a comfortable 19.5°C (67.1°F). Weather in September »Weather in October
October, the same as September, in Tomamae, Japan, is another mild autumn month, with temperature in the range of an average high of 13.3°C (55.9°F) and an average low of 8.8°C (47.8°F). With October's arrival, Tomamae's weather changes as the average high-temperature falls from an enjoyable 19.5°C (67.1°F) in September to a moderate 13.3°C (55.9°F). Weather in October »Weather in November
The last month of the autumn, November, is also a wintry month in Tomamae, Japan, with an average temperature ranging between max 5.6°C (42.1°F) and min 2.4°C (36.3°F). The arrival of November indicates a decrease in the average high-temperature, moving from a mild 13.3°C (55.9°F) in October to a cold 5.6°C (42.1°F). Weather in November »Weather in December
The first month of the winter, December, is also a wintry month in Tomamae, Japan, with an average temperature fluctuating between -3.3°C (26.1°F) and 0°C (32°F). The transition into December is accompanied by a temperature decrease, with the average high-temperature shifting from a cold 5.6°C (42.1°F) in November to a still icy 0°C (32°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
January and February mark Tomamae's lowest temperatures, averaging a high-temperature of -2.5°C (27.5°F).
Throughout the year, in Tomamae, Japan, there are 146.4 rainfall days, and 837mm (32.95") of precipitation is accumulated.
Months with snowfall are January through May, October through December.
In Tomamae, Japan, during the entire year, snow falls for 93.9 days and aggregates up to 1120mm (44.09") of snow.
January has the least sunshine of the year, with an average of 1.4h of sunshine.
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index.
April is the month with the least rainfall. Rain falls for 12.8 days and accumulates 42mm (1.65") of precipitation.
June through September are months without snowfall.
With an average of 15h and 30min of daylight, June has the longest days of the year.
The most humid month in Tomamae, Japan, is July, with an average relative humidity of 86%.
The months with the highest UV index are July and August, with an average maximum UV index of 5.
Tomamae's August weather, with an average high temperature of 22.5°C (72.5°F) and an average low temperature of 17.5°C (63.5°F), tends to be the warmest of the year.
The month with the most rainfall in Tomamae is August, when the rain falls for 17.6 days and typically aggregates up to 125mm (4.92") of precipitation.
The month with the most sunshine is August, with an average of 8.7h of sunshine.
October is the least humid month in Tomamae, Japan, with an average relative humidity of 73%.
The month with the most snowfall in Tomamae is December, when snow falls for 19.1 days and typically aggregates up to 279mm (10.98") of snow.
December has the shortest days of the year in Tomamae, with an average of 8h and 54min of daylight.
Tomamae, Japan, does not observe Daylight Saving Time (DST). JST timezone is used over the entire year.
Average temperature
Tomamae, Japan
The warmest month (with the highest average high temperature) is August (22.5°C).
The months with the lowest average high temperature are January and February (-2.5°C).
The month with the highest average low temperature is August (17.5°C).
The coldest month (with the lowest average low temperature) is February (-6.6°C).
Average pressure
Tomamae, Japan
- Average pressure in January:
1012.3mbar - Average pressure in February:
1014.1mbar - Average pressure in March:
1012.5mbar - Average pressure in April:
1011.5mbar - Average pressure in May:
1009.9mbar - Average pressure in June:
1008.8mbar
- Average pressure in July:
1008.3mbar - Average pressure in August:
1009.4mbar - Average pressure in September:
1013mbar - Average pressure in October:
1015mbar - Average pressure in November:
1015mbar - Average pressure in December:
1011.7mbar
The months with the highest atmospheric pressure are October and November (1015mbar).
The month with the lowest atmospheric pressure is July (1008.3mbar).
Average wind speed
Tomamae, Japan
- Average wind speed in January:
20.9km/h - Average wind speed in February:
21km/h - Average wind speed in March:
19.9km/h - Average wind speed in April:
18.4km/h - Average wind speed in May:
15.5km/h - Average wind speed in June:
12.5km/h
- Average wind speed in July:
11.8km/h - Average wind speed in August:
13.1km/h - Average wind speed in September:
15.7km/h - Average wind speed in October:
20.9km/h - Average wind speed in November:
22.3km/h - Average wind speed in December:
23.7km/h
The windiest month (with the highest average wind speed) is December (23.7km/h).
The calmest month (with the lowest average wind speed) is July (11.8km/h).
Average humidity
Tomamae, Japan
The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is October (73%).
Average rainfall
Tomamae, Japan
The wettest month (with the highest rainfall) is August (125mm).
The driest month (with the least rainfall) is April (42mm).
Average rainfall days
Tomamae, Japan
- Average rainfall days in January:
2.4 days - Average rainfall days in February:
2.9 days - Average rainfall days in March:
8.3 days - Average rainfall days in April:
12.8 days - Average rainfall days in May:
14.5 days - Average rainfall days in June:
16.8 days
- Average rainfall days in July:
17.2 days - Average rainfall days in August:
17.6 days - Average rainfall days in September:
17.2 days - Average rainfall days in October:
18.3 days - Average rainfall days in November:
12.5 days - Average rainfall days in December:
5.9 days
The month with the highest number of rainy days is October (18.3 days).
The month with the least rainy days is January (2.4 days).
Average snowfall
Tomamae, Japan
The month with the highest snowfall is December (279mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days
Tomamae, Japan
- Average snowfall days in January:
22.5 days - Average snowfall days in February:
19.9 days - Average snowfall days in March:
17.4 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:
0.4 days - Average snowfall days in November:
9 days - Average snowfall days in December:
19.1 days
The month with the highest number of snowfall days is January (22.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Tomamae, Japan
- Average daylight in January:
9h and 18min - Average daylight in February:
10h and 30min - Average daylight in March:
11h and 54min - Average daylight in April:
13h and 30min - Average daylight in May:
14h and 48min - Average daylight in June:
15h and 30min
- Average daylight in July:
15h and 6min - Average daylight in August:
14h and 0min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 36min - Average daylight in December:
8h and 54min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in January:
1h and 24min - Average sunshine in February:
1h and 54min - Average sunshine in March:
4h and 6min - Average sunshine in April:
8h and 24min - Average sunshine in May:
8h and 36min - Average sunshine in June:
7h and 42min
- Average sunshine in July:
7h and 48min - Average sunshine in August:
8h and 42min - Average sunshine in September:
8h and 6min - Average sunshine in October:
6h and 24min - Average sunshine in November:
2h and 48min - Average sunshine in December:
1h and 30min
The month with the most sunshine is August (Average sunshine: 8h and 42min).
The month with the least sunshine is January (Average sunshine: 1h and 24min).
Average sunshine days
Tomamae, Japan
- Average sunshine days in January:
4.3 days - Average sunshine days in February:
4.5 days - Average sunshine days in March:
7.4 days - Average sunshine days in April:
11.8 days - Average sunshine days in May:
14.8 days - Average sunshine days in June:
11.3 days
- Average sunshine days in July:
12.3 days - Average sunshine days in August:
11.1 days - Average sunshine days in September:
10.3 days - Average sunshine days in October:
10.7 days - Average sunshine days in November:
6.6 days - Average sunshine days in December:
3.1 days
The month with the most sunshine days is May (14.8 days).
The month with the least sunshine days is December (3.1 days).
Average UV index
Tomamae, Japan
The months with the highest UV index are July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover
Tomamae, Japan
The month with the most cloud cover is January (Cloud cover 88).
The month with the least cloud cover is September (Cloud cover 37).
Average visibility
Tomamae, Japan
The months with the highest visibility are September and October (10km).
The month with the lowest visibility is December (7km).
