Climate and monthly weather forecastOkegawa, Japan
Climate and monthly weather forecast
Weather in January
January, the same as December, in Okegawa, Japan, is a frosty winter month, with an average temperature ranging between max 8.3°C (46.9°F) and min 1.4°C (34.5°F). January, having an average high-temperature of 8.3°C (46.9°F) and an average low-temperature of 1.4°C (34.5°F), is the coldest month. Weather in January »Weather in February
The last month of the winter, February, is also a frosty month in Okegawa, Japan, with temperature in the range of an average low of 2.2°C (36°F) and an average high of 9.5°C (49.1°F). The start of February sees the average high-temperature at a still chilly 9.5°C (49.1°F), showing little difference from January's 8.3°C (46.9°F). Weather in February »Weather in March
March, the first month of the spring in Okegawa, is a refreshing month, with an average temperature varying between 13.3°C (55.9°F) and 5°C (41°F). The shift into March is characterized by a subtle rise in the average high-temperature, transitioning from February's frosty 9.5°C (49.1°F) to a refreshing 13.3°C (55.9°F). Weather in March »Weather in April
April is an enjoyable spring month in Okegawa, Japan, with temperature in the range of an average high of 18.3°C (64.9°F) and an average low of 9.7°C (49.5°F). The start of April signals an increase in the average high-temperature, moving from a moderate 13.3°C (55.9°F) in March to a still refreshing 18.3°C (64.9°F). Weather in April »Weather in May
May, the last month of the spring in Okegawa, is a warm month, with an average temperature ranging between max 24.1°C (75.4°F) and min 15.6°C (60.1°F). The shift into May is characterized by a rise in the average high-temperature, transitioning from April's comfortable 18.3°C (64.9°F) to a moderately hot 24.1°C (75.4°F). Weather in May »Weather in June
The first month of the summer, June, is also a moderately hot month in Okegawa, Japan, with temperature in the range of an average low of 19.1°C (66.4°F) and an average high of 26.3°C (79.3°F). The onset of June brings an average high-temperature of a still warm 26.3°C (79.3°F), nearly matching the May temperature. Weather in June »Weather in July
July in Okegawa, Japan, is a hot summer month, with an average temperature ranging between max 30.6°C (87.1°F) and min 23.3°C (73.9°F). Okegawa's transition into July is noticed by a slight rise in the average high-temperature, advancing from a warm 26.3°C (79.3°F) in June to a hot 30.6°C (87.1°F). Weather in July »Weather in August
August, the last month of the summer in Okegawa, is another tropical month, with temperature in the range of an average high of 32.3°C (90.1°F) and an average low of 24.8°C (76.6°F). Okegawa's warmest month, August, registers temperatures that range from a high of 32.3°C (90.1°F) to a low of 24.8°C (76.6°F). The heat index value during August is calculated to be a scorching 41°C (105.8°F). Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Okegawa, Japan, with an average temperature varying between 27.8°C (82°F) and 20.8°C (69.4°F). In September, the average high-temperature marginally decreases from a tropical 32.3°C (90.1°F) in August to a warm 27.8°C (82°F). Weather in September »Weather in October
October, like September, is another pleasant autumn month in Okegawa, Japan, with an average temperature ranging between min 15.3°C (59.5°F) and max 21.7°C (71.1°F). In Okegawa, the average high-temperature in October drops from a moderately hot 27.8°C (82°F) in September to an agreeable 21.7°C (71.1°F). Weather in October »Weather in November
November, the last month of the autumn in Okegawa, is another refreshing month, with an average temperature ranging between max 15.9°C (60.6°F) and min 9.5°C (49.1°F). November shows a mild decline in the average high-temperature, falling from October's agreeable 21.7°C (71.1°F) to a refreshing 15.9°C (60.6°F). Weather in November »Weather in December
The first month of the winter, December, is still a cool month in Okegawa, Japan, with an average temperature ranging between max 10.5°C (50.9°F) and min 4.4°C (39.9°F). Okegawa, Japan, observes a minor decrease in the average high-temperature with the arrival of December, falling from November's refreshing 15.9°C (60.6°F) to a fresh 10.5°C (50.9°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
The coldest temperatures occur during January, when averages reach a peak of 8.3°C (46.9°F) and a low of 1.4°C (34.5°F).
With an average relative humidity of 58%, January is the least humid month in Okegawa.
Throughout the year, in Okegawa, there are 94.5 rainfall days, and 224mm (8.82") of precipitation is accumulated.
Months with snowfall in Okegawa are January through March.
Throughout the year, there are 3.5 snowfall days, and 15mm (0.59") of snow is accumulated.
The month with the lowest UV index in Okegawa, Japan, is January, with an average maximum UV index of 2.
The months with the least rainfall are February and December Rain falls for 4.9 days and accumulates 6mm (0.24") of rain.
The month with the most snowfall in Okegawa is February, when snow falls for 2.1 days and typically aggregates up to 10mm (0.39") of snow.
With an average of 6h of sunshine, February has the least sunshine of the year.
In Okegawa, Japan, snow does not fall in April through December.
June and July, with an average relative humidity of 73%, are most humid months in Okegawa, Japan.
With an average of 14h and 36min of daylight, June has the longest days of the year.
The month with the highest UV index in Okegawa is July, with an average maximum UV index of 7.
Okegawa, Japan, records the warmest temperatures in August, averaging a high of 32.3°C (90.1°F) and a low of 24.8°C (76.6°F).
With an average of 9.7h of sunshine, August has the most sunshine of the year in Okegawa, Japan.
September is the month with the most rainfall in Okegawa, Japan. Rain falls for 10.3 days and accumulates 33mm (1.3") of precipitation.
With an average of 9h and 48min of daylight, December has the shortest days of the year in Okegawa.
Okegawa does not utilize Daylight Saving Time (DST). JST timezone is used over the entire year.
Average temperature
Okegawa, Japan
The warmest month (with the highest average high temperature) is August (32.3°C).
The month with the lowest average high temperature is January (8.3°C).
The month with the highest average low temperature is August (24.8°C).
The coldest month (with the lowest average low temperature) is January (1.4°C).
Average pressure
Okegawa, Japan
- Average pressure in January:
1016.5mbar - Average pressure in February:
1017.5mbar - Average pressure in March:
1015.7mbar - Average pressure in April:
1014.3mbar - Average pressure in May:
1012mbar - Average pressure in June:
1009.2mbar
- Average pressure in July:
1009.8mbar - Average pressure in August:
1010.3mbar - Average pressure in September:
1013.6mbar - Average pressure in October:
1016.9mbar - Average pressure in November:
1018.3mbar - Average pressure in December:
1016.5mbar
The month with the highest atmospheric pressure is November (1018.3mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed
Okegawa, Japan
- Average wind speed in January:
11.4km/h - Average wind speed in February:
11.5km/h - Average wind speed in March:
11.4km/h - Average wind speed in April:
11.5km/h - Average wind speed in May:
10.4km/h - Average wind speed in June:
9.6km/h
- Average wind speed in July:
8.8km/h - Average wind speed in August:
8.9km/h - Average wind speed in September:
9.4km/h - Average wind speed in October:
9.9km/h - Average wind speed in November:
8.9km/h - Average wind speed in December:
10.5km/h
The windiest months (with the highest average wind speed) are February and April (11.5km/h).
The calmest month (with the lowest average wind speed) is July (8.8km/h).
Average humidity
Okegawa, Japan
The months with the highest relative humidity are June and July (73%).
The month with the lowest relative humidity is January (58%).
Average rainfall
Okegawa, Japan
The wettest month (with the highest rainfall) is September (33mm).
The driest months (with the least rainfall) are February and December (6mm).
Average rainfall days
Okegawa, Japan
- Average rainfall days in January:
4.1 days - Average rainfall days in February:
4.9 days - Average rainfall days in March:
8.2 days - Average rainfall days in April:
8.5 days - Average rainfall days in May:
8.3 days - Average rainfall days in June:
10.2 days
- Average rainfall days in July:
9.6 days - Average rainfall days in August:
9.6 days - Average rainfall days in September:
10.3 days - Average rainfall days in October:
9 days - Average rainfall days in November:
6.9 days - Average rainfall days in December:
4.9 days
The month with the highest number of rainy days is September (10.3 days).
The month with the least rainy days is January (4.1 days).
Average snowfall
Okegawa, Japan
The month with the highest snowfall is February (10mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days
Okegawa, Japan
- Average snowfall days in January:
1.1 days - Average snowfall days in February:
2.1 days - Average snowfall days in March:
0.2 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 days - Average snowfall days in December:
0.1 days
The month with the highest number of snowfall days is February (2.1 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight / Average sunshine
Okegawa, Japan
- Average daylight in January:
10h and 0min - 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 6min - Average daylight in June:
14h and 36min
- Average daylight in July:
14h and 18min - Average daylight in August:
13h and 30min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 18min - Average daylight in November:
10h and 18min - Average daylight in December:
9h and 48min
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 48min).
- Average sunshine in January:
6h and 36min - Average sunshine in February:
6h and 0min - Average sunshine in March:
7h and 0min - Average sunshine in April:
9h and 0min - Average sunshine in May:
9h and 24min - Average sunshine in June:
8h and 30min
- Average sunshine in July:
9h and 6min - Average sunshine in August:
9h and 42min - Average sunshine in September:
7h and 24min - Average sunshine in October:
6h and 30min - Average sunshine in November:
6h and 6min - Average sunshine in December:
6h and 24min
The month with the most sunshine is August (Average sunshine: 9h and 42min).
The month with the least sunshine is February (Average sunshine: 6h and 0min).
Average sunshine days
Okegawa, Japan
- Average sunshine days in January:
25.3 days - Average sunshine days in February:
20.3 days - Average sunshine days in March:
20 days - Average sunshine days in April:
20.3 days - Average sunshine days in May:
20.3 days - Average sunshine days in June:
16.9 days
- Average sunshine days in July:
18.8 days - Average sunshine days in August:
19.6 days - Average sunshine days in September:
17.1 days - Average sunshine days in October:
18.9 days - Average sunshine days in November:
21.5 days - Average sunshine days in December:
24.8 days
The month with the most sunshine days is January (25.3 days).
The month with the least sunshine days is June (16.9 days).
Average UV index
Okegawa, Japan
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover
Okegawa, Japan
The month with the most cloud cover is June (Cloud cover 46).
The month with the least cloud cover is January (Cloud cover 27).
Average visibility
Okegawa, Japan
The months with the highest visibility are January, February, March, April, May, October, November and December (10km).
The months with the lowest visibility are June, July, August and September (9km).
