Climate and monthly weather forecastOasa, Japan

Climate and monthly weather forecast

Weather in January

January, like December, in Oasa, Japan, is an icy winter month, with an average temperature fluctuating between -0.1°C (31.8°F) and 5.1°C (41.2°F). The coldest time of the year is January, with temperatures averaging a high of 5.1°C (41.2°F) and a low of -0.1°C (31.8°F). Weather in January »

Weather in February

The last month of the winter, February, is a frosty month in Oasa, Japan, with an average temperature ranging between min 0.3°C (32.5°F) and max 6.8°C (44.2°F). February is marked by an average high-temperature of a 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 Oasa, is a cool month, with an average temperature fluctuating between 10.7°C (51.3°F) and 2.3°C (36.1°F). Oasa's March weather indicates a minor ascent in high-temperatures, adjusting from a chilly 6.8°C (44.2°F) in February to a fresh 10.7°C (51.3°F). Weather in March »

Weather in April

April in Oasa, Japan, is a moderate spring month, with temperature in the range of an average low of 6.5°C (43.7°F) and an average high of 15.8°C (60.4°F). With the onset of April, Oasa experiences a temperature shift, with the average high-temperature moving from a fresh 10.7°C (51.3°F) in March to a moderate 15.8°C (60.4°F). Weather in April »

Weather in May

The last month of the spring, May, is a pleasant month in Oasa, Japan, with an average temperature ranging between min 10.9°C (51.6°F) and max 21.7°C (71.1°F). The arrival of May brings an increase in high-temperatures, moving from a moderate 15.8°C (60.4°F) in April to an agreeable 21.7°C (71.1°F). Weather in May »

Weather in June

June, the first month of the summer in Oasa, is a moderately hot month, with an average temperature ranging between max 24.7°C (76.5°F) and min 15.4°C (59.7°F). June witnesses a minor rise in the average high-temperature, transitioning from a pleasant 21.7°C (71.1°F) in May to a moderately hot 24.7°C (76.5°F). Weather in June »

Weather in July

July, like June, in Oasa, Japan, is another warm summer month, with temperature in the range of an average low of 20.3°C (68.5°F) and an average high of 28.1°C (82.6°F). As June gives way to July, the average high-temperature displays a slight ascent, adjusting from a warm 24.7°C (76.5°F) to a still moderately hot 28.1°C (82.6°F). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Oasa, Japan, with an average temperature varying between 20.8°C (69.4°F) and 29.8°C (85.6°F). In Oasa, August records the highest average temperatures, peaking at 29.8°C (85.6°F) and reaching a low of 20.8°C (69.4°F). In August, the heat index is computed to be a torrid 38°C (100.4°F). Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Oasa, Japan, with an average temperature ranging between min 17°C (62.6°F) and max 25.1°C (77.2°F). September sees a slight reduction in average high-temperature, with a shift from 29.8°C (85.6°F) in August to a still moderately hot 25.1°C (77.2°F). Weather in September »

Weather in October

October, like September, in Oasa, Japan, is another enjoyable autumn month, with an average temperature ranging between max 19.6°C (67.3°F) and min 11.8°C (53.2°F). The onset of October is marked by a decrease in temperature, transitioning from a moderately hot 25.1°C (77.2°F) in September to a refreshing 19.6°C (67.3°F). Weather in October »

Weather in November

The last month of the autumn, November, is another refreshing month in Oasa, Japan, with an average temperature varying between 13.9°C (57°F) and 6.9°C (44.4°F). Oasa's weather in November involves a decrease in the average high-temperature, moving down from October's comfortable 19.6°C (67.3°F) to a still refreshing 13.9°C (57°F). Weather in November »

Weather in December

December, the first month of the winter in Oasa, is still a chilly month, with an average temperature varying between 2.3°C (36.1°F) and 7.5°C (45.5°F). A moderate decline in the average high-temperature is seen during December, decreasing from a mild 13.9°C (57°F) in November to a frosty 7.5°C (45.5°F). Weather in December »

Updated: Jan 31, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

With an average high-temperature of 5.1°C (41.2°F) and an average low-temperature of -0.1°C (31.8°F), January is the coldest month.

Throughout the year, in Oasa, there are 183.2 rainfall days, and 1092mm (42.99") of precipitation is accumulated.

January through March, November and December are months with snowfall in Oasa, Japan.

The month with the most snowfall is January, when snow falls for 10.8 days and typically aggregates up to 145mm (5.71") of snow.

Throughout the year, in Oasa, there are 27 snowfall days, and 345mm (13.58") of snow is accumulated.

With an average of 3.2h of sunshine, January has the least sunshine of the year in Oasa.

April through October are months without snowfall.

May is the least humid month in Oasa, with an average relative humidity of 73%.

With an average of 14h and 30min of daylight, June has the longest days of the year in Oasa, Japan.

The most humid month is July, with an average relative humidity of 85%.

July is the month with the most rainfall in Oasa, Japan. Rain falls for 21 days and accumulates 202mm (7.95") of precipitation.

With an average maximum UV index of 7, July is the month with the highest UV index.

Temperature records in Oasa mark August as the warmest month, with highs averaging 29.8°C (85.6°F) and lows at 20.8°C (69.4°F).

August has the most sunshine of the year in Oasa, with an average of 9.6h of sunshine.

November is the month with the least rainfall. Rain falls for 13.4 days and accumulates 42mm (1.65") of precipitation.

The month with the shortest days in Oasa, Japan, is December, with an average of 9h and 54min of daylight.

Oasa, Japan, does not observe Daylight Saving Time (DST). JST timezone is used over the entire year.

The month with the lowest UV index is December, with an average maximum UV index of 1.

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Year J F M A M J J A S O N D

Average temperature
Oasa, Japan

Average high temperature in January:
5.1°C
Average high temperature in February:
6.8°C
Average high temperature in March:
10.7°C
Average high temperature in April:
15.8°C
Average high temperature in May:
21.7°C
Average high temperature in June:
24.7°C

Average high temperature in July:
28.1°C
Average high temperature in August:
29.8°C
Average high temperature in September:
25.1°C
Average high temperature in October:
19.6°C
Average high temperature in November:
13.9°C
Average high temperature in December:
7.5°C

The warmest month (with the highest average high temperature) is August (29.8°C).
The month with the lowest average high temperature is January (5.1°C).

Average low temperature in January:
-0.1°C
Average low temperature in February:
0.3°C
Average low temperature in March:
2.3°C
Average low temperature in April:
6.5°C
Average low temperature in May:
10.9°C
Average low temperature in June:
15.4°C

Average low temperature in July:
20.3°C
Average low temperature in August:
20.8°C
Average low temperature in September:
17°C
Average low temperature in October:
11.8°C
Average low temperature in November:
6.9°C
Average low temperature in December:
2.3°C

The month with the highest average low temperature is August (20.8°C).
The coldest month (with the lowest average low temperature) is January (-0.1°C).

Average pressure
Oasa, Japan

Average pressure in January:
1020.9mbar
Average pressure in February:
1020.7mbar
Average pressure in March:
1018.3mbar
Average pressure in April:
1015.1mbar
Average pressure in May:
1011.9mbar
Average pressure in June:
1008.3mbar

Average pressure in July:
1008.3mbar
Average pressure in August:
1008.8mbar
Average pressure in September:
1012.7mbar
Average pressure in October:
1017.3mbar
Average pressure in November:
1020.1mbar
Average pressure in December:
1020.4mbar

The month with the highest atmospheric pressure is January (1020.9mbar).
The months with the lowest atmospheric pressure are June and July (1008.3mbar).

Average wind speed
Oasa, Japan

Average wind speed in July:
7.3km/h
Average wind speed in August:
6.9km/h
Average wind speed in September:
7km/h
Average wind speed in October:
7.8km/h
Average wind speed in November:
8.4km/h
Average wind speed in December:
10.6km/h

The windiest month (with the highest average wind speed) is December (10.6km/h).
The calmest month (with the lowest average wind speed) is June (6.3km/h).

Average humidity
Oasa, Japan

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is May (73%).

Average rainfall
Oasa, Japan

The wettest month (with the highest rainfall) is July (202mm).
The driest month (with the least rainfall) is November (42mm).

Average rainfall days
Oasa, Japan

Average rainfall days in January:
14.6 days
Average rainfall days in February:
12.3 days
Average rainfall days in March:
14.3 days
Average rainfall days in April:
13.8 days
Average rainfall days in May:
11.6 days
Average rainfall days in June:
17.4 days

Average rainfall days in July:
21 days
Average rainfall days in August:
17.7 days
Average rainfall days in September:
16.1 days
Average rainfall days in October:
13.5 days
Average rainfall days in November:
13.4 days
Average rainfall days in December:
17.5 days

The month with the highest number of rainy days is July (21 days).
The month with the least rainy days is May (11.6 days).

Average snowfall
Oasa, Japan

The month with the highest snowfall is January (145mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days
Oasa, Japan

Average snowfall days in January:
10.8 days
Average snowfall days in February:
7.4 days
Average snowfall days in March:
2.2 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:
0.2 days
Average snowfall days in December:
6.4 days

The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight / Average sunshine
Oasa, Japan

Average daylight in January:
10h and 6min
Average daylight in February:
10h and 54min
Average daylight in March:
12h and 0min
Average daylight in April:
13h and 6min
Average daylight in May:
14h and 0min
Average daylight in June:
14h and 30min

Average daylight in July:
14h and 12min
Average daylight in August:
13h and 24min
Average daylight in September:
12h and 24min
Average daylight in October:
11h and 18min
Average daylight in November:
10h and 24min
Average daylight in December:
9h and 54min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).

Average sunshine in January:
3h and 12min
Average sunshine in February:
4h and 12min
Average sunshine in March:
6h and 18min
Average sunshine in April:
8h and 30min
Average sunshine in May:
9h and 12min
Average sunshine in June:
8h and 18min

Average sunshine in July:
8h and 24min
Average sunshine in August:
9h and 36min
Average sunshine in September:
8h and 6min
Average sunshine in October:
5h and 30min
Average sunshine in November:
5h and 6min
Average sunshine in December:
3h and 18min

The month with the most sunshine is August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).