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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
Climate and monthly weather forecast
Weather in January
January, like December, is a frosty winter month in Oyama, Japan, with an average temperature fluctuating between 7.1°C (44.8°F) and 0.2°C (32.4°F). With average high temperatures of 7.1°C (44.8°F) and lows of 0.2°C (32.4°F), January is the coldest month. Weather in January »
Weather in February
The last month of the winter, February, is also a frosty month in Oyama, Japan, with an average temperature fluctuating between 8.2°C (46.8°F) and 0.5°C (32.9°F). The beginning of February records an average high-temperature of a still frosty 8.2°C (46.8°F), marking a negligible difference from January's 7.1°C (44.8°F). Weather in February »
Weather in March
March, the first month of the spring in Oyama, is a cool month, with temperature in the range of an average high of 12.2°C (54°F) and an average low of 3.6°C (38.5°F). With the onset of March, Oyama experiences a subtle temperature shift, with the average high-temperature moving from a chilly 8.2°C (46.8°F) in February to a cool 12.2°C (54°F). Weather in March »
Weather in April
April in Oyama, Japan, is an enjoyable spring month, with an average temperature fluctuating between 17.2°C (63°F) and 8.1°C (46.6°F). A rise in the average high-temperature is observed during April, moving from a fresh 12.2°C (54°F) in March to a comfortable 17.2°C (63°F). Weather in April »
Weather in May
May, the last month of the spring in Oyama, is a moderately hot month, with an average temperature fluctuating between 23.1°C (73.6°F) and 14°C (57.2°F). May's arrival coincides with a temperature rise, moving from April's refreshing 17.2°C (63°F) to a warm 23.1°C (73.6°F). Weather in May »
Weather in June
June, the first month of the summer in Oyama, is still a warm month, with an average temperature fluctuating between 25.5°C (77.9°F) and 17.7°C (63.9°F). The transition into June notes an average high-temperature of a still warm 25.5°C (77.9°F), revealing a mild distinction from the 23.1°C (73.6°F) in May. Weather in June »
Weather in July
July, like June, in Oyama, Japan, is a moderately hot summer month, with temperature in the range of an average high of 29.5°C (85.1°F) and an average low of 21.8°C (71.2°F). Oyama's weather shows a minor temperature rise with the arrival of July, moving from a moderately hot 25.5°C (77.9°F) in June to a still warm 29.5°C (85.1°F). Weather in July »
Weather in August
August, the last month of the summer in Oyama, is a hot month, with an average temperature fluctuating between 23.3°C (73.9°F) and 31.2°C (88.2°F). August is the warmest month of the year, registering average temperatures as high as 31.2°C (88.2°F) and as low as 23.3°C (73.9°F). In August, the heat index is estimated at a fiery hot 39°C (102.2°F). Weather in August »
Weather in September
September, the first month of the autumn in Oyama, is also a moderately hot month, with an average temperature varying between 19.1°C (66.4°F) and 26.5°C (79.7°F). Oyama's weather subtly changes with the onset of September, barely falling from a hot 31.2°C (88.2°F) in August to a warm 26.5°C (79.7°F). Weather in September »
Weather in October
October, like September, is an agreeable autumn month in Oyama, Japan, with an average temperature varying between 14°C (57.2°F) and 20.9°C (69.6°F). The decrease of average high-temperatures is mild in October, with a decline from a moderately hot 26.5°C (79.7°F) in September to a pleasant 20.9°C (69.6°F). Weather in October »
Weather in November
The last month of the autumn, November, is another mild month in Oyama, Japan, with an average temperature ranging between max 14.9°C (58.8°F) and min 8.4°C (47.1°F). Oyama's weather in November involves a decrease in the average high-temperature, moving down from October's pleasant 20.9°C (69.6°F) to a mild 14.9°C (58.8°F). Weather in November »
Weather in December
December, the first month of the winter in Oyama, is still a chilly month, with an average temperature varying between 9.5°C (49.1°F) and 3°C (37.4°F). A decrease in the average high-temperature is observed during December, shifting from a refreshing 14.9°C (58.8°F) in November to a frosty 9.5°C (49.1°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
What month is the coldest in Oyama?
January is the coldest month in Oyama, Japan, with an average high-temperature of 7.1°C (44.8°F) and an average low-temperature of 0.2°C (32.4°F).
What is the least humid month in Oyama?
With an average relative humidity of 61%, January is the least humid month in Oyama.
How much does it rain in Oyama?
In Oyama, Japan, during the entire year, the rain falls for 99.4 days and collects up to 187mm (7.36") of precipitation.
When does it snow in Oyama?
January through March are months with snowfall in Oyama, Japan.
How many days does it snow in Oyama?
Throughout the year, there are 3.2 snowfall days, and 6mm (0.24") of snow is accumulated.
What is the month with the lowest UV index in Oyama?
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index.
What is the snowiest month in Oyama?
The month with the most snowfall is February, when snow falls for 1.9 days and typically aggregates up to 4mm (0.16") of snow.
What is the month with the least sunshine in Oyama?
The month with the least sunshine is February, with an average of 6.3h of sunshine.
When it does not snow in Oyama?
April through December are months without snowfall in Oyama.
When are the longest days in Oyama?
With an average of 14h and 36min of daylight, June has the longest days of the year in Oyama, Japan.
What is the most humid month in Oyama?
July is the most humid month, with an average relative humidity of 78%.
What is the rainiest month in Oyama?
July is the month with the most rainfall. Rain falls for 18.3 days and accumulates 35mm (1.38") of precipitation.
What is the month with the highest UV index in Oyama?
July is the month with the highest UV index in Oyama, Japan, with an average maximum UV index of 7.
What time of the year is the hottest in Oyama?
In Oyama, August registers the highest temperatures, averaging 31.2°C (88.2°F) at the peak and 23.3°C (73.9°F) at the lowest.
What month has the most sunshine in Oyama?
August has the most sunshine of the year in Oyama, with an average of 9.9h of sunshine.
What is the driest month in Oyama?
December is the month with the least rainfall in Oyama, Japan. Rain falls for 3.3 days and accumulates 3mm (0.12") of precipitation.
What is the month with the shortest days in Oyama?
The month with the shortest days is December, with an average of 9h and 42min of daylight.
Is there Daylight Saving Time (DST) in Oyama?
Oyama does not utilize Daylight Saving Time (DST). JST timezone is used over the entire year.
Average temperature
Oyama, Japan
The warmest month (with the highest average high temperature) is August (31.2°C).
The month with the lowest average high temperature is January (7.1°C).
The month with the highest average low temperature is August (23.3°C).
The coldest month (with the lowest average low temperature) is January (0.2°C).
Average pressure
Oyama, Japan
- Average pressure in January:
1016.5mbar - Average pressure in February:
1017.6mbar - Average pressure in March:
1015.8mbar - Average pressure in April:
1014.4mbar - Average pressure in May:
1012mbar - Average pressure in June:
1009.3mbar
- Average pressure in July:
1009.8mbar - Average pressure in August:
1010.3mbar - Average pressure in September:
1013.8mbar - Average pressure in October:
1017.1mbar - Average pressure in November:
1018.5mbar - Average pressure in December:
1016.5mbar
The month with the highest atmospheric pressure is November (1018.5mbar).
The month with the lowest atmospheric pressure is June (1009.3mbar).
Average wind speed
Oyama, Japan
- Average wind speed in January:
9.1km/h - Average wind speed in February:
9km/h - Average wind speed in March:
9.3km/h - Average wind speed in April:
9.5km/h - Average wind speed in May:
8.5km/h - Average wind speed in June:
8km/h
- Average wind speed in July:
7.2km/h - Average wind speed in August:
7.4km/h - Average wind speed in September:
7.6km/h - Average wind speed in October:
8.1km/h - Average wind speed in November:
7km/h - Average wind speed in December:
8.4km/h
The windiest month (with the highest average wind speed) is April (9.5km/h).
The calmest month (with the lowest average wind speed) is November (7km/h).
Average humidity
Oyama, Japan
The month with the highest relative humidity is July (78%).
The month with the lowest relative humidity is January (61%).
Average rainfall
Oyama, Japan
The wettest month (with the highest rainfall) is July (35mm).
The driest month (with the least rainfall) is December (3mm).
Average rainfall days
Oyama, Japan
- Average rainfall days in January:
3.9 days - Average rainfall days in February:
3.6 days - Average rainfall days in March:
6.3 days - Average rainfall days in April:
8.3 days - Average rainfall days in May:
7.9 days - Average rainfall days in June:
13.6 days
- Average rainfall days in July:
18.3 days - Average rainfall days in August:
14.2 days - Average rainfall days in September:
9.3 days - Average rainfall days in October:
7.1 days - Average rainfall days in November:
3.6 days - Average rainfall days in December:
3.3 days
The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is December (3.3 days).
Average snowfall
Oyama, Japan
The month with the highest snowfall is February (4mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days
Oyama, Japan
- Average snowfall days in January:
0.8 days - Average snowfall days in February:
1.9 days - Average snowfall days in March:
0.3 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 days - Average snowfall days in December:
0.2 days
The month with the highest number of snowfall days is February (1.9 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight / Average sunshine
Oyama, Japan
- Average daylight in January:
10h and 0min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 1min - Average daylight in June:
14h and 4min
- Average daylight in July:
14h and 2min - Average daylight in August:
13h and 3min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 2min - Average daylight in November:
10h and 2min - Average daylight in December:
9h and 4min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in January:
6h and 5min - Average sunshine in February:
6h and 2min - Average sunshine in March:
7h and 2min - Average sunshine in April:
9h and 2min - Average sunshine in May:
9h and 4min - Average sunshine in June:
8h and 5min
- Average sunshine in July:
9h and 0min - Average sunshine in August:
9h and 5min - Average sunshine in September:
8h and 0min - Average sunshine in October:
7h and 1min - Average sunshine in November:
6h and 2min - Average sunshine in December:
6h and 4min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 18min).
Average sunshine days
Oyama, Japan
- Average sunshine days in January:
26.1 days - Average sunshine days in February:
23.1 days - Average sunshine days in March:
23 days - Average sunshine days in April:
19.6 days - Average sunshine days in May:
19.5 days - Average sunshine days in June:
11.7 days
- Average sunshine days in July:
7.5 days - Average sunshine days in August:
10.9 days - Average sunshine days in September:
17 days - Average sunshine days in October:
20.9 days - Average sunshine days in November:
24.7 days - Average sunshine days in December:
27.5 days
The month with the most sunshine days is December (27.5 days).
The month with the least sunshine days is July (7.5 days).
Average UV index
Oyama, Japan
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover
Oyama, Japan
The month with the most cloud cover is June (Cloud cover 46).
The month with the least cloud cover is January (Cloud cover 25).
Average visibility
Oyama, Japan
The months with the highest visibility are January, February, March, November and December (10km).
The months with the lowest visibility are April, May, June, July, August, September and October (9km).
