Climate and monthly weather forecastYanai, Japan
Climate and monthly weather forecast
Weather in January
January, like December, is a frosty winter month in Yanai, Japan, with temperature in the range of an average low of 4.3°C (39.7°F) and an average high of 8.7°C (47.7°F). Yanai's January weather, with an average high temperature of 8.7°C (47.7°F) and an average low temperature of 4.3°C (39.7°F), tends to be the coldest of the year. Weather in January »Weather in February
The last month of the winter, February, is another chilly month in Yanai, Japan, with an average temperature fluctuating between 9.3°C (48.7°F) and 4.7°C (40.5°F). February ushers in an average high-temperature of a still chilly 9.3°C (48.7°F), aligning closely with the preceding month. Weather in February »Weather in March
The first month of the spring, March, is a fresh month in Yanai, Japan, with temperature in the range of an average low of 6.7°C (44.1°F) and an average high of 12.3°C (54.1°F). Yanai's transition into March is marked by a minor temperature shift, moving from a frosty 9.3°C (48.7°F) in February to a fresh 12.3°C (54.1°F). Weather in March »Weather in April
April is an enjoyable spring month in Yanai, Japan, with an average temperature ranging between max 16.3°C (61.3°F) and min 10.5°C (50.9°F). The beginning of April marks a minor shift in the average high-temperature, moving from March's cool 12.3°C (54.1°F) to an enjoyable 16.3°C (61.3°F). Weather in April »Weather in May
The last month of the spring, May, is an agreeable month in Yanai, Japan, with an average temperature fluctuating between 20.8°C (69.4°F) and 14.9°C (58.8°F). Yanai, Japan, observes a slight ascent in average high-temperatures during May, adjusting from a refreshing 16.3°C (61.3°F) in April to an agreeable 20.8°C (69.4°F). Weather in May »Weather in June
The first month of the summer, June, is a warm month in Yanai, Japan, with temperature in the range of an average high of 23.6°C (74.5°F) and an average low of 18.8°C (65.8°F). The onset of June manifests an average high-temperature of a moderately hot 23.6°C (74.5°F), demonstrating a minor variation from the preceding month. Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Yanai, Japan, with an average temperature ranging between max 27.3°C (81.1°F) and min 22.7°C (72.9°F). Observing a slight rise in July, the average high-temperature shifts from June's 23.6°C (74.5°F) to a still moderately hot 27.3°C (81.1°F). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Yanai, Japan, with an average temperature varying between 29.1°C (84.4°F) and 24.3°C (75.7°F). With its high average temperature of 29.1°C (84.4°F) and a low of 24.3°C (75.7°F), August is regarded as the warmest month. The heat index value during August is appraised at a fiery hot 35°C (95°F). Weather in August »Weather in September
September, the first month of the autumn in Yanai, is still a warm month, with temperature in the range of an average high of 25.8°C (78.4°F) and an average low of 20.8°C (69.4°F). As September commences, the average high-temperature subtly reduces, transitioning from a warm 29.1°C (84.4°F) in August to a still moderately hot 25.8°C (78.4°F). Weather in September »Weather in October
October, the same as September, in Yanai, Japan, is another pleasant autumn month, with an average temperature varying between 16.5°C (61.7°F) and 21.3°C (70.3°F). The move into October indicates a slight reduction in the average high-temperature, down from September's warm 25.8°C (78.4°F) to a pleasant 21.3°C (70.3°F). Weather in October »Weather in November
November, the last month of the autumn in Yanai, is another comfortable month, with an average temperature varying between 11.5°C (52.7°F) and 16°C (60.8°F). As October transitions to November, the average high-temperature falls from an agreeable 21.3°C (70.3°F) to an enjoyable 16°C (60.8°F). Weather in November »Weather in December
December, the first month of the winter in Yanai, is still a cool month, with temperature in the range of an average low of 6.5°C (43.7°F) and an average high of 10.6°C (51.1°F). The onset of December brings a small change in high-temperatures, falling from a refreshing 16°C (60.8°F) in November to a fresh 10.6°C (51.1°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
January is the coldest month in Yanai, with an average high-temperature of 8.7°C (47.7°F) and an average low-temperature of 4.3°C (39.7°F).
The months with the lowest humidity in Yanai are January through March, with an average relative humidity of 71%.
The month with the least rainfall in Yanai is January, when the rain falls for 13 days and typically collects 39mm (1.54") of precipitation.
Throughout the year, in Yanai, there are 168 rainfall days, and 1163mm (45.79") of precipitation is accumulated.
January, February and December are months with snowfall in Yanai, Japan.
Throughout the year, in Yanai, there are 7.6 snowfall days, and 19mm (0.75") of snow is accumulated.
With an average of 5h of sunshine, January has the least sunshine of the year.
January and December, with an average maximum UV index of 2, are months with the lowest UV index.
February is the month with the coldest seawater in Yanai, Japan, with an average sea temperature of 12.9°C (55.2°F).
In Yanai, Japan, snow does not fall in March through November.
The month with the longest days is June, with an average of 14h and 24min of daylight.
The most humid month in Yanai is July, with an average relative humidity of 85%.
July is the month with the most rainfall in Yanai, Japan. Rain falls for 20.5 days and accumulates 213mm (8.39") of precipitation.
The month with the highest UV index in Yanai is July, with an average maximum UV index of 7.
Yanai's August weather reaches an average high of 29.1°C (84.4°F) and an average low of 24.3°C (75.7°F), making it the warmest month.
The month with the warmest seawater in Yanai is August, with an average sea temperature of 26.8°C (80.2°F).
The month with the most sunshine is August, with an average of 10.7h of sunshine.
December is the month with the most snowfall in Yanai, Japan. Snow falls for 1.8 days and accumulates 8mm (0.31") of snow.
With an average of 9h and 54min of daylight, December has the shortest days of the year.
Yanai does not observe Daylight Saving Time (DST). JST timezone is used over the entire year.
Average temperature
Yanai, Japan
The warmest month (with the highest average high temperature) is August (29.1°C).
The month with the lowest average high temperature is January (8.7°C).
The month with the highest average low temperature is August (24.3°C).
The coldest month (with the lowest average low temperature) is January (4.3°C).
Average pressure
Yanai, Japan
- Average pressure in January:
1021.3mbar - Average pressure in February:
1020.7mbar - Average pressure in March:
1018.3mbar - Average pressure in April:
1015.2mbar - Average pressure in May:
1012.1mbar - Average pressure in June:
1008.4mbar
- Average pressure in July:
1008.8mbar - Average pressure in August:
1009mbar - Average pressure in September:
1012.5mbar - Average pressure in October:
1017mbar - Average pressure in November:
1020.2mbar - Average pressure in December:
1020.8mbar
The month with the highest atmospheric pressure is January (1021.3mbar).
The month with the lowest atmospheric pressure is June (1008.4mbar).
Average wind speed
Yanai, Japan
- Average wind speed in January:
14.5km/h - Average wind speed in February:
13km/h - Average wind speed in March:
12.6km/h - Average wind speed in April:
11.3km/h - Average wind speed in May:
9.3km/h - Average wind speed in June:
8km/h
- Average wind speed in July:
8.6km/h - Average wind speed in August:
8.5km/h - Average wind speed in September:
9.4km/h - Average wind speed in October:
11.7km/h - Average wind speed in November:
11.7km/h - Average wind speed in December:
14.1km/h
The windiest month (with the highest average wind speed) is January (14.5km/h).
The calmest month (with the lowest average wind speed) is June (8km/h).
Average humidity
Yanai, Japan
The month with the highest relative humidity is July (85%).
The months with the lowest relative humidity are January, February and March (71%).
Average rainfall
Yanai, Japan
The wettest month (with the highest rainfall) is July (213mm).
The driest month (with the least rainfall) is January (39mm).
Average rainfall days
Yanai, Japan
- Average rainfall days in January:
13 days - Average rainfall days in February:
11.4 days - Average rainfall days in March:
13.3 days - Average rainfall days in April:
12.2 days - Average rainfall days in May:
11.1 days - Average rainfall days in June:
17.5 days
- Average rainfall days in July:
20.5 days - Average rainfall days in August:
18.2 days - Average rainfall days in September:
15 days - Average rainfall days in October:
10.5 days - Average rainfall days in November:
10.6 days - Average rainfall days in December:
14.7 days
The month with the highest number of rainy days is July (20.5 days).
The month with the least rainy days is October (10.5 days).
Average snowfall
Yanai, Japan
The month with the highest snowfall is December (8mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days
Yanai, Japan
- Average snowfall days in January:
3.3 days - Average snowfall days in February:
2.3 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:
1.8 days
The month with the highest number of snowfall days is January (3.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average sea temperature
Yanai, Japan
The best month for swimming (with the highest average sea temperature) is August (26.8°C).
The coldest month (with the lowest average sea temperature) is February (12.9°C).
Average daylight / Average sunshine
Yanai, Japan
- Average daylight in January:
10h and 12min - Average daylight in February:
11h and 0min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 0min - Average daylight in May:
13h and 54min - Average daylight in June:
14h and 24min
- 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 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in January:
5h and 0min - Average sunshine in February:
5h and 48min - Average sunshine in March:
7h and 30min - Average sunshine in April:
9h and 6min - Average sunshine in May:
9h and 30min - Average sunshine in June:
8h and 42min
- Average sunshine in July:
9h and 12min - Average sunshine in August:
10h and 42min - Average sunshine in September:
9h and 6min - Average sunshine in October:
6h and 12min - Average sunshine in November:
6h and 6min - Average sunshine in December:
5h and 18min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days
Yanai, Japan
- Average sunshine days in January:
13.8 days - Average sunshine days in February:
13.4 days - Average sunshine days in March:
15.5 days - Average sunshine days in April:
15.8 days - Average sunshine days in May:
18.6 days - Average sunshine days in June:
11.8 days
- Average sunshine days in July:
9.3 days - Average sunshine days in August:
10.2 days - Average sunshine days in September:
13 days - Average sunshine days in October:
18.4 days - Average sunshine days in November:
17.2 days - Average sunshine days in December:
11.9 days
The month with the most sunshine days is May (18.6 days).
The month with the least sunshine days is July (9.3 days).
Average UV index
Yanai, Japan
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover
Yanai, Japan
The months with the most cloud cover are January and June (Cloud cover 43).
The months with the least cloud cover are August, October and November (Cloud cover 32).
Average visibility
Yanai, Japan
The months with the highest visibility are January, February, March, August, September, October, November and December (10km).
The months with the lowest visibility are April, May, June and July (9km).
