Climate and monthly weather forecastJonanjima, Japan
Climate and monthly weather forecast
Weather in January
January, like December, is a frosty winter month in Jonanjima, Japan, with temperature in the range of an average high of 8.9°C (48°F) and an average low of 3.4°C (38.1°F). Jonanjima records the coldest temperatures in January, averaging a high of 8.9°C (48°F) and a low 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 Jonanjima, Japan, with an average temperature varying between 9.8°C (49.6°F) and 4.1°C (39.4°F). Transitioning from January to February, Jonanjima observes an average high-temperature of a still chilly 9.8°C (49.6°F), differing subtly from the previous month. Weather in February »Weather in March
The first month of the spring, March, is a fresh month in Jonanjima, Japan, with an average temperature varying between 6.7°C (44.1°F) and 12.8°C (55°F). In Jonanjima, the onset of March comes with a modest high-temperature shift, transitioning from February's frosty 9.8°C (49.6°F) to a fresh 12.8°C (55°F). Weather in March »Weather in April
April in Jonanjima, Japan, is a comfortable spring month, with an average temperature varying between 10.8°C (51.4°F) and 17.2°C (63°F). April's arrival signals a subtle increase in average high-temperatures, moving from March's fresh 12.8°C (55°F) to a comfortable 17.2°C (63°F). Weather in April »Weather in May
The last month of the spring, May, is an agreeable month in Jonanjima, Japan, with an average temperature varying between 21.9°C (71.4°F) and 16.2°C (61.2°F). The arrival of May witnesses a small shift in the average high-temperature, moving from a refreshing 17.2°C (63°F) in April to an agreeable 21.9°C (71.4°F). Weather in May »Weather in June
June, the first month of the summer in Jonanjima, is a warm month, with temperature in the range of an average low of 19.2°C (66.6°F) and an average high of 24.3°C (75.7°F). Jonanjima's shift into June sets the average high-temperature at a moderately hot 24.3°C (75.7°F), a figure that deviates only slightly from May's 21.9°C (71.4°F). Weather in June »Weather in July
July, like June, in Jonanjima, Japan, is a moderately hot summer month, with an average temperature varying between 23.3°C (73.9°F) and 28.3°C (82.9°F). As July begins, there's a slight increase in the average high-temperature, moving from a warm 24.3°C (75.7°F) in June 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 Jonanjima, is also a moderately hot month, with temperature in the range of an average high of 29.8°C (85.6°F) and an average low of 24.9°C (76.8°F). August, known for its average high temperature of 29.8°C (85.6°F) and an average low temperature of 24.9°C (76.8°F), is the warmest month. For most parts of August, the heat index is computed to be a fiery hot 36°C (96.8°F). Weather in August »Weather in September
September, the first month of the autumn in Jonanjima, is also a moderately hot month, with temperature in the range of an average low of 21.6°C (70.9°F) and an average high of 26.5°C (79.7°F). The start of September signals a gentle decrease in the average high-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 an agreeable autumn month in Jonanjima, Japan, with an average temperature ranging between max 21.5°C (70.7°F) and min 16.8°C (62.2°F). October comes with a decrease in the average high-temperature, falling 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
The last month of the autumn, November, is another comfortable month in Jonanjima, Japan, with an average temperature varying between 11.5°C (52.7°F) and 16.5°C (61.7°F). Arrival of November comes with a reduction in the average high-temperature, falling from an agreeable 21.5°C (70.7°F) in October to a comfortable 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 Jonanjima, Japan, with an average temperature fluctuating between 11.5°C (52.7°F) and 6.4°C (43.5°F). The average high-temperature drops in December, from November's enjoyable 16.5°C (61.7°F) to a fresh 11.5°C (52.7°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
Jonanjima, Japan, witnesses the coldest weather in 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 Jonanjima, Japan, 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 in Jonanjima are January through March.
Throughout the year, there are 3.5 snowfall days, and 41mm (1.61") of snow is accumulated.
January through March, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Jonanjima, Japan.
February is the month with the most snowfall in Jonanjima. Snow falls for 2 days and accumulates 37mm (1.46") of snow.
February has the least sunshine of the year, with an average of 5.5h of sunshine.
In Jonanjima, snow does not fall in April through December.
The month with the longest days is June, with an average of 14h and 30min of daylight.
With an average relative humidity of 80%, July is the most humid month.
The month with the highest UV index in Jonanjima, Japan, is July, with an average maximum UV index of 7.
August temperatures in Jonanjima tend to peak at an average high of 29.8°C (85.6°F) and dip to a low of 24.9°C (76.8°F).
August has the most sunshine of the year in Jonanjima, 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.
December has the shortest days of the year, with an average of 9h and 48min of daylight.
Jonanjima, Japan, does not observe Daylight Saving Time (DST). JST timezone is used throughout the entire year.
Average temperature
Jonanjima, 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
Jonanjima, 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
Jonanjima, 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
Jonanjima, Japan
The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is January (61%).
Average rainfall
Jonanjima, Japan
The wettest month (with the highest rainfall) is October (100mm).
The driest month (with the least rainfall) is December (36mm).
Average rainfall days
Jonanjima, 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
Jonanjima, 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
Jonanjima, 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
Jonanjima, 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
Jonanjima, 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
Jonanjima, 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
Jonanjima, 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
Jonanjima, 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).
