Climate and monthly weather forecastOnahama, Japan
Climate and monthly weather forecast
Weather in January
January, like December, is another chilly winter month in Onahama, Japan, with an average temperature varying between 1.3°C (34.3°F) and 6.7°C (44.1°F). The month of January, characterized by an average high of 6.7°C (44.1°F) and a low of 1.3°C (34.3°F), is recognized as the coldest. Weather in January »Weather in February
February, the last month of the winter in Onahama, is also a frosty month, with an average temperature fluctuating between 1.4°C (34.5°F) and 6.8°C (44.2°F). The advent of February brings an average high-temperature of a still chilly 6.8°C (44.2°F), almost identical to the preceding month. Weather in February »Weather in March
March, the first month of the spring in Onahama, is a cool month, with temperature in the range of an average high of 10.3°C (50.5°F) and an average low of 4°C (39.2°F). As Onahama welcomes March, the average high-temperature sees a modest rise, transitioning from a frosty 6.8°C (44.2°F) in February to a cool 10.3°C (50.5°F). Weather in March »Weather in April
April is a moderate spring month in Onahama, Japan, with temperature in the range of an average high of 14.4°C (57.9°F) and an average low of 8.2°C (46.8°F). Onahama in April observes a minor temperature shift, with average high-temperatures adjusting from a fresh 10.3°C (50.5°F) in March to a refreshing 14.4°C (57.9°F). Weather in April »Weather in May
May, the last month of the spring in Onahama, is a refreshing month, with an average temperature ranging between min 13.4°C (56.1°F) and max 19.4°C (66.9°F). May comes with a subtle rise, with the average high-temperature adjusting from a mild 14.4°C (57.9°F) in April to a still refreshing 19.4°C (66.9°F). Weather in May »Weather in June
The first month of the summer, June, is a pleasant month in Onahama, Japan, with an average temperature ranging between min 16.9°C (62.4°F) and max 21.9°C (71.4°F). Onahama experiences an average high-temperature of an agreeable 21.9°C (71.4°F) in June, marking an insignificant shift from 19.4°C (66.9°F) in May. Weather in June »Weather in July
July is a moderately hot summer month in Onahama, Japan, with an average temperature ranging between min 21.1°C (70°F) and max 25.6°C (78.1°F). Onahama observes a slight uplift in the average high-temperature with the onset of July, adjusting from June's pleasant 21.9°C (71.4°F) to a moderately hot 25.6°C (78.1°F). Weather in July »Weather in August
August, the last month of the summer in Onahama, is another warm month, with an average temperature fluctuating between 27.2°C (81°F) and 22.7°C (72.9°F). August, marked by an average high-temperature of 27.2°C (81°F) and a low-temperature of 22.7°C (72.9°F), is the warmest month. The heat index value during August is calculated to be a tropical 31°C (87.8°F). Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Onahama, Japan, with temperature in the range of an average low of 19.8°C (67.6°F) and an average high of 24°C (75.2°F). A moderate decline in average high-temperatures is noted in September, moving from a warm 27.2°C (81°F) in August to a still moderately hot 24°C (75.2°F). Weather in September »Weather in October
October, the same as September, is another comfortable autumn month in Onahama, Japan, with an average temperature varying between 19.4°C (66.9°F) and 14.6°C (58.3°F). A mild drop in Onahama's average high-temperature is observed in October, transitioning from a warm 24°C (75.2°F) in September to a comfortable 19.4°C (66.9°F). Weather in October »Weather in November
November, the last month of the autumn in Onahama, is another mild month, with an average temperature fluctuating between 9.5°C (49.1°F) and 14.4°C (57.9°F). The commencement of November includes a gentle temperature shift, with the average high-temperature dropping a bit from a comfortable 19.4°C (66.9°F) in October to a moderate 14.4°C (57.9°F). Weather in November »Weather in December
The first month of the winter, December, is also a frosty month in Onahama, Japan, with an average temperature varying between 4.5°C (40.1°F) and 9.4°C (48.9°F). As November shifts into December, a slight alteration in temperatures is observed, with average highs reducing from a refreshing 14.4°C (57.9°F) to a frosty 9.4°C (48.9°F). Weather in December »Updated: Aug 15, 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 temperatures occur during January, when averages reach a peak of 6.7°C (44.1°F) and a low of 1.3°C (34.3°F).
With an average relative humidity of 65%, January is the least humid month in Onahama.
January is the month with the least rainfall. Rain falls for 5.5 days and accumulates 27mm (1.06") of precipitation.
In Onahama, during the entire year, the rain falls for 149.2 days and collects up to 755mm (29.72") of precipitation.
Months with snowfall are January through March and November.
Throughout the year, there are 4.4 snowfall days, and 47mm (1.85") of snow is accumulated.
The months with the lowest UV index are January and February, with an average maximum UV index of 2.
The month with the most snowfall is February, when snow falls for 2.2 days and typically aggregates up to 20mm (0.79") of snow.
April through October and December are months without snowfall.
The month with the longest days in Onahama is June, with an average of 14h and 42min of daylight.
With an average relative humidity of 86%, July is the most humid month.
The months with the highest UV index are July and August, with an average maximum UV index of 6.
In Onahama, the average temperatures in August are the highest, with a peak at 27.2°C (81°F) and a low of 22.7°C (72.9°F).
The month with the most sunshine in Onahama is August, with an average of 9.8h of sunshine.
October is the month with the most rainfall. Rain falls for 14.5 days and accumulates 105mm (4.13") of precipitation.
With an average of 5.7h of sunshine, November has the least sunshine of the year.
The month with the shortest days is December, with an average of 9h and 42min of daylight.
Onahama, Japan, does not observe Daylight Saving Time (DST). JST timezone is used over the entire year.
Average temperature
Onahama, Japan
The warmest month (with the highest average high temperature) is August (27.2°C).
The month with the lowest average high temperature is January (6.7°C).
The month with the highest average low temperature is August (22.7°C).
The coldest month (with the lowest average low temperature) is January (1.3°C).
Average pressure
Onahama, Japan
- Average pressure in January:
1016.1mbar - Average pressure in February:
1017.5mbar - Average pressure in March:
1015.8mbar - Average pressure in April:
1014.5mbar - Average pressure in May:
1012.1mbar - Average pressure in June:
1009.4mbar
- Average pressure in July:
1009.6mbar - Average pressure in August:
1010.2mbar - Average pressure in September:
1013.8mbar - Average pressure in October:
1017.2mbar - Average pressure in November:
1018.4mbar - Average pressure in December:
1016.2mbar
The month with the highest atmospheric pressure is November (1018.4mbar).
The month with the lowest atmospheric pressure is June (1009.4mbar).
Average wind speed
Onahama, Japan
- Average wind speed in January:
19.8km/h - Average wind speed in February:
19.4km/h - Average wind speed in March:
18.1km/h - Average wind speed in April:
17km/h - Average wind speed in May:
14.4km/h - Average wind speed in June:
12.3km/h
- Average wind speed in July:
11.6km/h - Average wind speed in August:
11.9km/h - Average wind speed in September:
13.3km/h - Average wind speed in October:
15.3km/h - Average wind speed in November:
15.7km/h - Average wind speed in December:
19.1km/h
The windiest month (with the highest average wind speed) is January (19.8km/h).
The calmest month (with the lowest average wind speed) is July (11.6km/h).
Average humidity
Onahama, Japan
The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is January (65%).
Average rainfall
Onahama, Japan
The wettest month (with the highest rainfall) is October (105mm).
The driest month (with the least rainfall) is January (27mm).
Average rainfall days
Onahama, Japan
- Average rainfall days in January:
5.5 days - Average rainfall days in February:
7.3 days - Average rainfall days in March:
12.8 days - Average rainfall days in April:
13.3 days - Average rainfall days in May:
12.8 days - Average rainfall days in June:
16.1 days
- Average rainfall days in July:
18 days - Average rainfall days in August:
16.1 days - Average rainfall days in September:
14.8 days - Average rainfall days in October:
14.5 days - Average rainfall days in November:
10.2 days - Average rainfall days in December:
7.8 days
The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is January (5.5 days).
Average snowfall
Onahama, Japan
The month with the highest snowfall is February (20mm).
The months with the least snowfall are April, May, June, July, August, September, October and December (0mm).
Average snowfall days
Onahama, Japan
- Average snowfall days in January:
1.1 days - Average snowfall days in February:
2.2 days - Average snowfall days in March:
0.8 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 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 days - Average snowfall days in November:
0.1 days - Average snowfall days in December:
0.2 days
The month with the highest number of snowfall days is February (2.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Onahama, Japan
- Average daylight in January:
10h and 0min - Average daylight in February:
10h and 48min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 6min - Average daylight in May:
14h and 6min - Average daylight in June:
14h and 42min
- Average daylight in July:
14h and 24min - Average daylight in August:
13h and 36min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 18min - Average daylight in November:
10h and 12min - Average daylight in December:
9h and 42min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in January:
6h and 18min - Average sunshine in February:
5h and 48min - Average sunshine in March:
6h and 48min - Average sunshine in April:
8h and 48min - Average sunshine in May:
9h and 24min - Average sunshine in June:
8h and 36min
- Average sunshine in July:
8h and 42min - Average sunshine in August:
9h and 48min - Average sunshine in September:
7h and 30min - Average sunshine in October:
7h and 12min - Average sunshine in November:
5h and 42min - Average sunshine in December:
5h and 54min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is November (Average sunshine: 5h and 42min).
Average sunshine days
Onahama, Japan
- Average sunshine days in January:
24.4 days - Average sunshine days in February:
18.8 days - Average sunshine days in March:
16.1 days - Average sunshine days in April:
14.3 days - Average sunshine days in May:
16.4 days - Average sunshine days in June:
10.3 days
- Average sunshine days in July:
9.8 days - Average sunshine days in August:
11 days - Average sunshine days in September:
12.8 days - Average sunshine days in October:
14.6 days - Average sunshine days in November:
18.6 days - Average sunshine days in December:
21.7 days
The month with the most sunshine days is January (24.4 days).
The month with the least sunshine days is July (9.8 days).
Average UV index
Onahama, Japan
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and February (UV index 2).
Average cloud cover
Onahama, Japan
The month with the most cloud cover is July (Cloud cover 47).
The month with the least cloud cover is January (Cloud cover 32).
Average visibility
Onahama, Japan
The months with the highest visibility are January, February, March, April, September, October, November and December (10km).
The months with the lowest visibility are May, June, July and August (9km).
