Climate and monthly weather forecastIwakiri, Japan
Climate and monthly weather forecast
Weather in January
January, like December, in Iwakiri, Japan, is a wintry winter month, with an average temperature varying between 3.3°C (37.9°F) and -1.7°C (28.9°F). January is the month that records the lowest temperatures, with averages ranging from a high of 3.3°C (37.9°F) to a low of -1.7°C (28.9°F). Weather in January »Weather in February
The last month of the winter, February, is also an icy month in Iwakiri, Japan, with an average temperature ranging between max 4.1°C (39.4°F) and min -1.7°C (28.9°F). Iwakiri, Japan, indicates an average high-temperature of a still cold 4.1°C (39.4°F) in February, showing minor variation from January's 3.3°C (37.9°F). Weather in February »Weather in March
March, the first month of the spring in Iwakiri, is a chilly month, with temperature in the range of an average low of 1.3°C (34.3°F) and an average high of 8.3°C (46.9°F). As March arrives, a slight rise in the average high-temperature is observed, moving from a wintry 4.1°C (39.4°F) in February to a chilly 8.3°C (46.9°F). Weather in March »Weather in April
April in Iwakiri, Japan, is a mild spring month, with an average temperature ranging between max 13.6°C (56.5°F) and min 6.1°C (43°F). April brings an increase in the average high-temperature, progressing from a chilly 8.3°C (46.9°F) in March to a moderate 13.6°C (56.5°F). Weather in April »Weather in May
The last month of the spring, May, is a refreshing month in Iwakiri, Japan, with an average temperature fluctuating between 11.6°C (52.9°F) and 19.8°C (67.6°F). The arrival of May sees a shift in the average high-temperature, moving from 13.6°C (56.5°F) in April to a still refreshing 19.8°C (67.6°F). Weather in May »Weather in June
June, the first month of the summer in Iwakiri, is an agreeable month, with an average temperature varying between 22.7°C (72.9°F) and 15.1°C (59.2°F). The arrival of June sees a recorded average high-temperature of a pleasant 22.7°C (72.9°F), showing little divergence from the previous month's conditions. Weather in June »Weather in July
July is a moderately hot summer month in Iwakiri, Japan, with temperature in the range of an average high of 26.3°C (79.3°F) and an average low of 19.8°C (67.6°F). The shift into July is accompanied by a modest temperature increase, with the average high-temperature edging up from a pleasant 22.7°C (72.9°F) in June to a moderately hot 26.3°C (79.3°F). Weather in July »Weather in August
August, the last month of the summer in Iwakiri, is another warm month, with an average temperature varying between 27.8°C (82°F) and 21.4°C (70.5°F). Iwakiri's August weather, with an average high temperature of 27.8°C (82°F) and an average low temperature of 21.4°C (70.5°F), tends to be the warmest of the year. The average heat index in August is appraised at a tropical 32°C (89.6°F). Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Iwakiri, Japan, with an average temperature fluctuating between 17.8°C (64°F) and 24°C (75.2°F). The arrival of September corresponds with a minor reduction in the average high-temperature, down from August's warm 27.8°C (82°F) to a still moderately hot 24°C (75.2°F). Weather in September »Weather in October
October, the same as September, is another refreshing autumn month in Iwakiri, Japan, with an average temperature varying between 12.1°C (53.8°F) and 18.5°C (65.3°F). Stepping into October, Iwakiri observes a temperature decline, with the average high falling from September's moderately hot 24°C (75.2°F) to an enjoyable 18.5°C (65.3°F). Weather in October »Weather in November
The last month of the autumn, November, is also a fresh month in Iwakiri, Japan, with an average temperature varying between 12.5°C (54.5°F) and 6.8°C (44.2°F). November indicates a shift in the average high-temperature, from October's refreshing 18.5°C (65.3°F) to a fresh 12.5°C (54.5°F). Weather in November »Weather in December
The first month of the winter, December, is also a frosty month in Iwakiri, Japan, with an average temperature ranging between max 6.4°C (43.5°F) and min 1.5°C (34.7°F). December brings a decrease in the average high-temperature, falling from November's fresh 12.5°C (54.5°F) to a frosty 6.4°C (43.5°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
With average temperatures fluctuating between a high of 3.3°C (37.9°F) and a low of -1.7°C (28.9°F), January stands out as the coldest month in Iwakiri.
Throughout the year, in Iwakiri, Japan, there are 153.4 rainfall days, and 741mm (29.17") of precipitation is accumulated.
January through April and December are months with snowfall in Iwakiri.
Throughout the year, in Iwakiri, Japan, there are 27.1 snowfall days, and 195mm (7.68") of snow is accumulated.
With an average of 5.1h of sunshine, January has the least sunshine of the year.
The months with the lowest UV index in Iwakiri are January through March, November and December, with an average maximum UV index of 2.
The month with the least rainfall in Iwakiri, Japan, is February, when the rain falls for 8.8 days and typically collects 22mm (0.87") of precipitation.
The month with the most snowfall is February, when snow falls for 9.2 days and typically aggregates up to 63mm (2.48") of snow.
The months with the lowest humidity are April and May, with an average relative humidity of 72%.
May through November are months without snowfall in Iwakiri.
The month with the most sunshine is May, with an average of 9.5h of sunshine.
With an average of 14h and 48min of daylight, June has the longest days of the year.
With an average relative humidity of 84%, July is the most humid month.
The wettest months are July and October, with an average 111mm (4.37") of rainfall.
The months with the highest UV index are July and August, with an average maximum UV index of 6.
Iwakiri, Japan, experiences its highest temperatures in August, with an average peak of 27.8°C (82°F) and a low of 21.4°C (70.5°F).
December has the shortest days of the year in Iwakiri, Japan, with an average of 9h and 36min of daylight.
Iwakiri, Japan, does not utilize Daylight Saving Time (DST). JST timezone is used throughout the entire year.
Average temperature
Iwakiri, Japan
The warmest month (with the highest average high temperature) is August (27.8°C).
The month with the lowest average high temperature is January (3.3°C).
The month with the highest average low temperature is August (21.4°C).
The coldest months (with the lowest average low temperature) are January and February (-1.7°C).
Average pressure
Iwakiri, Japan
- Average pressure in January:
1016.2mbar - Average pressure in February:
1017.7mbar - Average pressure in March:
1016.1mbar - Average pressure in April:
1014.6mbar - Average pressure in May:
1012mbar - Average pressure in June:
1009.3mbar
- Average pressure in July:
1009.4mbar - Average pressure in August:
1010.2mbar - Average pressure in September:
1014mbar - Average pressure in October:
1017.5mbar - Average pressure in November:
1018.7mbar - Average pressure in December:
1016.2mbar
The month with the highest atmospheric pressure is November (1018.7mbar).
The month with the lowest atmospheric pressure is June (1009.3mbar).
Average wind speed
Iwakiri, Japan
- Average wind speed in January:
14.4km/h - Average wind speed in February:
14.1km/h - Average wind speed in March:
13.7km/h - Average wind speed in April:
12.9km/h - Average wind speed in May:
11.1km/h - Average wind speed in June:
9.5km/h
- Average wind speed in July:
8.1km/h - Average wind speed in August:
8.7km/h - Average wind speed in September:
9.9km/h - Average wind speed in October:
11.7km/h - Average wind speed in November:
11.9km/h - Average wind speed in December:
14km/h
The windiest month (with the highest average wind speed) is January (14.4km/h).
The calmest month (with the lowest average wind speed) is July (8.1km/h).
Average humidity
Iwakiri, Japan
The month with the highest relative humidity is July (84%).
The months with the lowest relative humidity are April and May (72%).
Average rainfall
Iwakiri, Japan
The wettest months (with the highest rainfall) are July and October (111mm).
The driest month (with the least rainfall) is February (22mm).
Average rainfall days
Iwakiri, Japan
- Average rainfall days in January:
8.7 days - Average rainfall days in February:
8.8 days - Average rainfall days in March:
12.6 days - Average rainfall days in April:
13.3 days - Average rainfall days in May:
11.5 days - Average rainfall days in June:
16.2 days
- Average rainfall days in July:
20.7 days - Average rainfall days in August:
16.7 days - Average rainfall days in September:
14.1 days - Average rainfall days in October:
11.8 days - Average rainfall days in November:
9.5 days - Average rainfall days in December:
9.5 days
The month with the highest number of rainy days is July (20.7 days).
The month with the least rainy days is January (8.7 days).
Average snowfall
Iwakiri, Japan
The month with the highest snowfall is February (63mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).
Average snowfall days
Iwakiri, Japan
- Average snowfall days in January:
7.9 days - Average snowfall days in February:
9.2 days - Average snowfall days in March:
5.2 days - Average snowfall days in April:
0.5 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:
4.3 days
The month with the highest number of snowfall days is February (9.2 days).
The months with the least snowfall days are May, June, July, August, September, October and November (0 days).
Average daylight / Average sunshine
Iwakiri, Japan
- Average daylight in January:
9h and 48min - Average daylight in February:
10h and 48min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 12min - Average daylight in May:
14h and 12min - Average daylight in June:
14h and 48min
- Average daylight in July:
14h and 30min - Average daylight in August:
13h and 36min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 12min - Average daylight in November:
10h and 6min - Average daylight in December:
9h and 36min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in January:
5h and 6min - Average sunshine in February:
5h and 12min - Average sunshine in March:
6h and 42min - Average sunshine in April:
9h and 0min - Average sunshine in May:
9h and 30min - Average sunshine in June:
8h and 54min
- Average sunshine in July:
8h and 30min - Average sunshine in August:
9h and 6min - Average sunshine in September:
7h and 24min - Average sunshine in October:
7h and 18min - Average sunshine in November:
5h and 54min - Average sunshine in December:
5h and 30min
The month with the most sunshine is May (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days
Iwakiri, Japan
- Average sunshine days in January:
17.3 days - Average sunshine days in February:
13.2 days - Average sunshine days in March:
13.8 days - Average sunshine days in April:
14 days - Average sunshine days in May:
16.7 days - Average sunshine days in June:
10.6 days
- Average sunshine days in July:
7.2 days - Average sunshine days in August:
10.6 days - Average sunshine days in September:
13.2 days - Average sunshine days in October:
16.3 days - Average sunshine days in November:
17.6 days - Average sunshine days in December:
17.3 days
The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is July (7.2 days).
Average UV index
Iwakiri, Japan
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Iwakiri, Japan
The month with the most cloud cover is July (Cloud cover 49).
The month with the least cloud cover is May (Cloud cover 36).
Average visibility
Iwakiri, Japan
The months with the highest visibility are October, November and December (10km).
The month with the lowest visibility is July (8km).
