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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, in Rumoi, Japan, is another subzero cold winter month, with an average temperature varying between -6.3°C (20.7°F) and -2.3°C (27.9°F). In Rumoi, Japan, January is the month with the lowest recorded average temperatures, measuring a high of -2.3°C (27.9°F) and a low of -6.3°C (20.7°F). Weather in January »
Weather in February
The last month of the winter, February, is also a subzero cold month in Rumoi, Japan, with an average temperature varying between -6.5°C (20.3°F) and -2.2°C (28°F). The arrival of February brings an average high-temperature of a still subzero cold -2.2°C (28°F), closely following the temperature pattern of January. Weather in February »
Weather in March
The first month of the spring, March, is an icy month in Rumoi, Japan, with an average temperature fluctuating between -3.1°C (26.4°F) and 1.3°C (34.3°F). The average high-temperature mildly increases in March, edging from a freezing cold -2.2°C (28°F) in February to a wintry 1.3°C (34.3°F). Weather in March »
Weather in April
April in Rumoi, Japan, is a frosty spring month, with temperature in the range of an average low of 2.2°C (36°F) and an average high of 6.9°C (44.4°F). April's arrival coincides with a temperature rise, moving from March's cold 1.3°C (34.3°F) to a frosty 6.9°C (44.4°F). Weather in April »
Weather in May
The last month of the spring, May, is a mild month in Rumoi, Japan, with an average temperature ranging between min 7.5°C (45.5°F) and max 13.3°C (55.9°F). A shift in the average high-temperature is noticeable in May, changing from a chilly 6.9°C (44.4°F) in April to a refreshing 13.3°C (55.9°F). Weather in May »
Weather in June
June, the first month of the summer in Rumoi, is an enjoyable month, with temperature in the range of an average high of 17.6°C (63.7°F) and an average low of 11.6°C (52.9°F). With the onset of June, Rumoi's average high-temperature experiences a slight rise, moving from May's mild 13.3°C (55.9°F) to a still refreshing 17.6°C (63.7°F). Weather in June »
Weather in July
July in Rumoi, Japan, is an agreeable summer month, with an average temperature varying between 16.2°C (61.2°F) and 21.6°C (70.9°F). July brings a slight elevation in the average high-temperature, transitioning from June's enjoyable 17.6°C (63.7°F) to a pleasant 21.6°C (70.9°F). Weather in July »
Weather in August
August, the last month of the summer in Rumoi, is also an agreeable month, with an average temperature ranging between min 17.8°C (64°F) and max 22.9°C (73.2°F). August temperatures tend to peak at an average high of 22.9°C (73.2°F) and dip to a low of 17.8°C (64°F). Weather in August »
Weather in September
The first month of the autumn, September, is also an enjoyable month in Rumoi, Japan, with an average temperature fluctuating between 19.8°C (67.6°F) and 14.8°C (58.6°F). The onset of September entails a subtle temperature shift, as the average high-temperature eases from an agreeable 22.9°C (73.2°F) in August to a refreshing 19.8°C (67.6°F). Weather in September »
Weather in October
October, like September, is another mild autumn month in Rumoi, Japan, with an average temperature fluctuating between 8.6°C (47.5°F) and 13.4°C (56.1°F). Transition into October marks a drop in the average high-temperature, moving from an enjoyable 19.8°C (67.6°F) in September to a still refreshing 13.4°C (56.1°F). Weather in October »
Weather in November
November, the last month of the autumn in Rumoi, is another cold month, with an average temperature varying between 2.3°C (36.1°F) and 5.9°C (42.6°F). The beginning of November marks a decrease in the average high-temperature, transitioning from a mild 13.4°C (56.1°F) in October to a cold 5.9°C (42.6°F). Weather in November »
Weather in December
The first month of the winter, December, is also a wintry month in Rumoi, Japan, with an average temperature ranging between min -3.5°C (25.7°F) and max 0.1°C (32.2°F). December comes with a decrease in the average high-temperature, falling from a wintry 5.9°C (42.6°F) in November to a still cold 0.1°C (32.2°F). Weather in December »
[Resources]Frequently asked questions
What is the coldest month in Rumoi?
Rumoi, Japan, experiences its lowest temperatures in January, with an average peak of -2.3°C (27.9°F) and a low of -6.3°C (20.7°F).
How much does it rain in Rumoi?
In Rumoi, Japan, during the entire year, the rain falls for 138.6 days and collects up to 792mm (31.18") of precipitation.
When does it snow in Rumoi?
January through May, October through December are months with snowfall in Rumoi.
How much does it snow in Rumoi?
In Rumoi, Japan, during the entire year, snow falls for 84.9 days and aggregates up to 1049mm (41.3") of snow.
What are the months with the least sunshine in Rumoi?
The months with the least sunshine in Rumoi are January and December, with an average of 1.4h of sunshine.
What is the month with the lowest UV index in Rumoi?
The months with the lowest UV index in Rumoi are January, February, November and December, with an average maximum UV index of 1.
What is the driest month in Rumoi?
February is the month with the least rainfall in Rumoi. Rain falls for 2.7 days and accumulates 35mm (1.38") of precipitation.
What are the months with the most sunshine in Rumoi?
May and August, with an average of 8.8h of sunshine, are months with the most sunshine.
When it does not snow in Rumoi?
In Rumoi, Japan, snow does not fall in June through September.
When are the longest days in Rumoi?
June has the longest days of the year, with an average of 15h and 24min of daylight.
What is the most humid month in Rumoi?
With an average relative humidity of 87%, July is the most humid month in Rumoi, Japan.
When is the highest UV index in Rumoi?
July is the month with the highest UV index in Rumoi, Japan, with an average maximum UV index of 6.
What month is the hottest in Rumoi?
Rumoi's August weather, with an average high temperature of 22.9°C (73.2°F) and an average low temperature of 17.8°C (64°F), tends to be the warmest of the year.
What is the rainiest month in Rumoi?
The month with the most rainfall in Rumoi is August, when the rain falls for 18 days and typically aggregates up to 136mm (5.35") of precipitation.
What is the least humid month in Rumoi?
The least humid month is October, with an average relative humidity of 74%.
What is the snowiest month in Rumoi?
The month with the most snowfall is December, when snow falls for 18 days and typically aggregates up to 260mm (10.24") of snow.
What is the month with the shortest days in Rumoi?
December has the shortest days of the year, with an average of 9h and 0min of daylight.
Is there Daylight Saving Time (DST) in Rumoi?
Rumoi, Japan, does not observe Daylight Saving Time (DST). JST timezone is used throughout the entire year.
Average temperature
Rumoi, Japan
The warmest month (with the highest average high temperature) is August (22.9°C).
The month with the lowest average high temperature is January (-2.3°C).
The month with the highest average low temperature is August (17.8°C).
The coldest month (with the lowest average low temperature) is February (-6.5°C).
Average pressure
Rumoi, Japan
- Average pressure in January:
1012.6mbar - Average pressure in February:
1014.4mbar - Average pressure in March:
1012.8mbar - Average pressure in April:
1011.7mbar - Average pressure in May:
1010mbar - Average pressure in June:
1008.8mbar
- Average pressure in July:
1008.4mbar - Average pressure in August:
1009.5mbar - Average pressure in September:
1013.1mbar - Average pressure in October:
1015.3mbar - Average pressure in November:
1015.4mbar - Average pressure in December:
1012.2mbar
The month with the highest atmospheric pressure is November (1015.4mbar).
The month with the lowest atmospheric pressure is July (1008.4mbar).
Average wind speed
Rumoi, Japan
- Average wind speed in January:
19.9km/h - Average wind speed in February:
20km/h - Average wind speed in March:
18.5km/h - Average wind speed in April:
16.9km/h - Average wind speed in May:
14.1km/h - Average wind speed in June:
11.1km/h
- Average wind speed in July:
10.3km/h - Average wind speed in August:
11.6km/h - Average wind speed in September:
14.1km/h - Average wind speed in October:
19.2km/h - Average wind speed in November:
20.5km/h - Average wind speed in December:
22.6km/h
The windiest month (with the highest average wind speed) is December (22.6km/h).
The calmest month (with the lowest average wind speed) is July (10.3km/h).
Average humidity
Rumoi, Japan
The month with the highest relative humidity is July (87%).
The month with the lowest relative humidity is October (74%).
Average rainfall
Rumoi, Japan
The wettest month (with the highest rainfall) is August (136mm).
The driest month (with the least rainfall) is February (35mm).
Average rainfall days
Rumoi, Japan
- Average rainfall days in January:
2.3 days - Average rainfall days in February:
2.7 days - Average rainfall days in March:
6.5 days - Average rainfall days in April:
11.2 days - Average rainfall days in May:
13.3 days - Average rainfall days in June:
15.9 days
- Average rainfall days in July:
17.1 days - Average rainfall days in August:
18 days - Average rainfall days in September:
16.6 days - Average rainfall days in October:
16.9 days - Average rainfall days in November:
13.1 days - Average rainfall days in December:
5 days
The month with the highest number of rainy days is August (18 days).
The month with the least rainy days is January (2.3 days).
Average snowfall
Rumoi, Japan
The month with the highest snowfall is December (260mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days
Rumoi, Japan
- Average snowfall days in January:
21.1 days - Average snowfall days in February:
17.2 days - Average snowfall days in March:
13.7 days - Average snowfall days in April:
4.9 days - Average snowfall days in May:
0.4 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:
0.1 days - Average snowfall days in November:
9.5 days - Average snowfall days in December:
18 days
The month with the highest number of snowfall days is January (21.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Rumoi, Japan
- Average daylight in January:
9h and 2min - Average daylight in February:
10h and 3min - Average daylight in March:
11h and 5min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 4min - Average daylight in June:
15h and 2min
- Average daylight in July:
15h and 1min - Average daylight in August:
14h and 0min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 4min - Average daylight in December:
9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in January:
1h and 2min - Average sunshine in February:
1h and 5min - Average sunshine in March:
4h and 1min - Average sunshine in April:
8h and 2min - Average sunshine in May:
8h and 5min - Average sunshine in June:
7h and 5min
- Average sunshine in July:
8h and 1min - Average sunshine in August:
8h and 5min - Average sunshine in September:
8h and 0min - Average sunshine in October:
6h and 1min - Average sunshine in November:
2h and 5min - Average sunshine in December:
1h and 2min
The months with the most sunshine are May and August (Average sunshine: 8h and 48min).
The months with the least sunshine are January and December (Average sunshine: 1h and 24min).
Average sunshine days
Rumoi, Japan
- Average sunshine days in January:
5.8 days - Average sunshine days in February:
6.1 days - Average sunshine days in March:
10.8 days - Average sunshine days in April:
14.3 days - Average sunshine days in May:
15.9 days - Average sunshine days in June:
11.8 days
- Average sunshine days in July:
11.7 days - Average sunshine days in August:
11.2 days - Average sunshine days in September:
10.6 days - Average sunshine days in October:
11.7 days - Average sunshine days in November:
7.2 days - Average sunshine days in December:
5.1 days
The month with the most sunshine days is May (15.9 days).
The month with the least sunshine days is December (5.1 days).
Average UV index
Rumoi, 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
Rumoi, 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
Rumoi, Japan
The months with the highest visibility are September and October (10km).
The months with the lowest visibility are January, February and December (8km).
Rumoi, Japan
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