Climate and monthly weather forecastKeihinjima, Japan
Climate and monthly weather forecast
Weather in January
January, like December, is another chilly winter month in Keihinjima, Japan, with an average temperature ranging between max 8.9°C (48°F) and min 3.4°C (38.1°F). Keihinjima's temperature records reveal January as the coldest month, marked by average highs of 8.9°C (48°F) and lows of 3.4°C (38.1°F). Weather in January »Weather in February
The last month of the winter, February, is another chilly month in Keihinjima, Japan, with an average temperature varying between 9.8°C (49.6°F) and 4.1°C (39.4°F). The arrival of February denotes a barely perceptible change in the average high-temperatures to a still frosty 9.8°C (49.6°F) from January's 8.9°C (48°F). Weather in February »Weather in March
March, the first month of the spring in Keihinjima, is a fresh month, with an average temperature ranging between max 12.8°C (55°F) and min 6.7°C (44.1°F). As Keihinjima enters March, the average high-temperature marginally increases from the a frosty 9.8°C (49.6°F) of February to a cool 12.8°C (55°F). Weather in March »Weather in April
April in Keihinjima, Japan, is a comfortable spring month, with temperature in the range of an average high of 17.2°C (63°F) and an average low of 10.8°C (51.4°F). The coming of April brings a minor shift in Keihinjima's weather, with average high-temperatures adjusting from March's fresh 12.8°C (55°F) to a refreshing 17.2°C (63°F). Weather in April »Weather in May
The last month of the spring, May, is an agreeable month in Keihinjima, Japan, with an average temperature ranging between max 21.9°C (71.4°F) and min 16.2°C (61.2°F). As May begins, there's a slight increase in the average high-temperature, moving from a comfortable 17.2°C (63°F) in April to an agreeable 21.9°C (71.4°F). Weather in May »Weather in June
The first month of the summer, June, is a warm month in Keihinjima, Japan, with an average temperature varying between 19.2°C (66.6°F) and 24.3°C (75.7°F). With the arrival of June, Keihinjima's average high-temperature registers at a moderately hot 24.3°C (75.7°F), indicating a subtle variation from the previous month. Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Keihinjima, Japan, with temperature in the range of an average high of 28.3°C (82.9°F) and an average low of 23.3°C (73.9°F). As July arrives, Keihinjima's weather shows a minor increase in high-temperatures, edging from June's 24.3°C (75.7°F) to a still moderately hot 28.3°C (82.9°F). Weather in July »Weather in August
August, the last month of the summer in Keihinjima, is another warm month, with an average temperature ranging between min 24.9°C (76.8°F) and max 29.8°C (85.6°F). Keihinjima experiences its highest average temperatures in August, reaching a peak of 29.8°C (85.6°F) and a minimum of 24.9°C (76.8°F). August's average heat index is estimated at a fiery hot 36°C (96.8°F). Weather in August »Weather in September
September, the first month of the autumn in Keihinjima, is also a moderately hot month, with an average temperature varying between 21.6°C (70.9°F) and 26.5°C (79.7°F). The onset of September is marked by a minor decrease in temperature, transitioning from 29.8°C (85.6°F) in August to a still moderately hot 26.5°C (79.7°F). Weather in September »Weather in October
October, like September, is another pleasant autumn month in Keihinjima, Japan, with an average temperature varying between 16.8°C (62.2°F) and 21.5°C (70.7°F). The start of October involves a temperature drop, moving from a warm 26.5°C (79.7°F) in September to an agreeable 21.5°C (70.7°F). Weather in October »Weather in November
November, the last month of the autumn in Keihinjima, is another refreshing month, with an average temperature varying between 11.5°C (52.7°F) and 16.5°C (61.7°F). With the beginning of November, the average high-temperature shows a decrease, transitioning from a pleasant 21.5°C (70.7°F) in October to a refreshing 16.5°C (61.7°F). Weather in November »Weather in December
The first month of the winter, December, is also a fresh month in Keihinjima, Japan, with an average temperature fluctuating between 6.4°C (43.5°F) and 11.5°C (52.7°F). The onset of December results in a decrease in the average high-temperature, receding from a refreshing 16.5°C (61.7°F) in November to a cool 11.5°C (52.7°F). Weather in December »Updated: Aug 26, 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 time of the year is January, with temperatures averaging a high of 8.9°C (48°F) and a low of 3.4°C (38.1°F).
January is the least humid month in Keihinjima, with an average relative humidity of 61%.
Throughout the year, there are 154.1 rainfall days, and 754mm (29.69") of precipitation is accumulated.
Months with snowfall are January through March.
Throughout the year, in Keihinjima, there are 3.5 snowfall days, and 41mm (1.61") of snow is accumulated.
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 3.
The month with the most snowfall is February, when snow falls for 2 days and typically aggregates up to 37mm (1.46") of snow.
February has the least sunshine of the year, with an average of 5.5h of sunshine.
In Keihinjima, Japan, snow does not fall in April through December.
The month with the longest days in Keihinjima is June, with an average of 14h and 30min of daylight.
The most humid month is July, with an average relative humidity of 80%.
With an average maximum UV index of 7, July is the month with the highest UV index.
In Keihinjima, August is identified by the average highest temperatures, reaching a peak of 29.8°C (85.6°F) and a low of 24.9°C (76.8°F).
August has the most sunshine of the year, with an average of 10.3h of sunshine.
October is the month with the most rainfall. Rain falls for 15.3 days and accumulates 100mm (3.94") of precipitation.
The month with the least rainfall is December, when the rain falls for 9.1 days and typically collects 36mm (1.42") of precipitation.
The month with the shortest days is December, with an average of 9h and 48min of daylight.
Keihinjima does not observe Daylight Saving Time (DST). JST timezone is used throughout the entire year.
Average temperature
Keihinjima, Japan
The warmest month (with the highest average high temperature) is August (29.8°C).
The month with the lowest average high temperature is January (8.9°C).
The month with the highest average low temperature is August (24.9°C).
The coldest month (with the lowest average low temperature) is January (3.4°C).
Average pressure
Keihinjima, Japan
- Average pressure in January:
1016.1mbar - Average pressure in February:
1017mbar - Average pressure in March:
1015.4mbar - Average pressure in April:
1014.2mbar - Average pressure in May:
1011.9mbar - Average pressure in June:
1009.2mbar
- Average pressure in July:
1009.8mbar - Average pressure in August:
1010.2mbar - Average pressure in September:
1013.4mbar - Average pressure in October:
1016.5mbar - Average pressure in November:
1018mbar - Average pressure in December:
1016.2mbar
The month with the highest atmospheric pressure is November (1018mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed
Keihinjima, Japan
- Average wind speed in January:
15.8km/h - Average wind speed in February:
16.8km/h - Average wind speed in March:
17.1km/h - Average wind speed in April:
17.3km/h - Average wind speed in May:
15.6km/h - Average wind speed in June:
13.6km/h
- Average wind speed in July:
15km/h - Average wind speed in August:
14.2km/h - Average wind speed in September:
13.9km/h - Average wind speed in October:
15.4km/h - Average wind speed in November:
14km/h - Average wind speed in December:
15km/h
The windiest month (with the highest average wind speed) is April (17.3km/h).
The calmest month (with the lowest average wind speed) is June (13.6km/h).
Average humidity
Keihinjima, Japan
The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is January (61%).
Average rainfall
Keihinjima, Japan
The wettest month (with the highest rainfall) is October (100mm).
The driest month (with the least rainfall) is December (36mm).
Average rainfall days
Keihinjima, Japan
- Average rainfall days in January:
7.5 days - Average rainfall days in February:
10.4 days - Average rainfall days in March:
15.2 days - Average rainfall days in April:
13.8 days - Average rainfall days in May:
12.8 days - Average rainfall days in June:
16 days
- Average rainfall days in July:
15.3 days - Average rainfall days in August:
12.8 days - Average rainfall days in September:
14 days - Average rainfall days in October:
15.3 days - Average rainfall days in November:
11.9 days - Average rainfall days in December:
9.1 days
The month with the highest number of rainy days is June (16 days).
The month with the least rainy days is January (7.5 days).
Average snowfall
Keihinjima, Japan
The month with the highest snowfall is February (37mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days
Keihinjima, Japan
- Average snowfall days in January:
1.1 days - Average snowfall days in February:
2 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:
0.2 days
The month with the highest number of snowfall days is February (2 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight / Average sunshine
Keihinjima, 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 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 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in January:
6h and 12min - Average sunshine in February:
5h and 30min - Average sunshine in March:
6h and 36min - Average sunshine in April:
8h and 36min - Average sunshine in May:
9h and 12min - Average sunshine in June:
8h and 36min
- Average sunshine in July:
9h and 30min - Average sunshine in August:
10h and 18min - Average sunshine in September:
7h and 54min - Average sunshine in October:
6h and 36min - Average sunshine in November:
5h and 54min - Average sunshine in December:
6h and 6min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 5h and 30min).
Average sunshine days
Keihinjima, Japan
- Average sunshine days in January:
20.9 days - Average sunshine days in February:
14.9 days - Average sunshine days in March:
13.2 days - Average sunshine days in April:
14.1 days - Average sunshine days in May:
16.3 days - Average sunshine days in June:
12.3 days
- Average sunshine days in July:
14.1 days - Average sunshine days in August:
15.9 days - Average sunshine days in September:
13.6 days - Average sunshine days in October:
13 days - Average sunshine days in November:
16.4 days - Average sunshine days in December:
20.2 days
The month with the most sunshine days is January (20.9 days).
The month with the least sunshine days is June (12.3 days).
Average UV index
Keihinjima, Japan
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, March, November and December (UV index 3).
Average cloud cover
Keihinjima, Japan
The months with the most cloud cover are June and October (Cloud cover 45).
The month with the least cloud cover is January (Cloud cover 31).
Average visibility
Keihinjima, Japan
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
