Climate and monthly weather forecastKoga, Japan
Climate and monthly weather forecast
Weather in January
January, like December, is another chilly winter month in Koga, Japan, with temperature in the range of an average low of 0.8°C (33.4°F) and an average high of 7.6°C (45.7°F). January, noted for its average high-temperature of 7.6°C (45.7°F) and an average low-temperature of 0.8°C (33.4°F), is considered the coldest month. Weather in January »Weather in February
The last month of the winter, February, is another chilly month in Koga, Japan, with an average temperature ranging between min 1.1°C (34°F) and max 8.5°C (47.3°F). As Koga welcomes February, the average high-temperature is noted at a still frosty 8.5°C (47.3°F), closely aligning with the preceding month. Weather in February »Weather in March
The first month of the spring, March, is a cool month in Koga, Japan, with an average temperature ranging between min 4.1°C (39.4°F) and max 12.7°C (54.9°F). March comes with a subtle rise, with the average high-temperature adjusting from a frosty 8.5°C (47.3°F) in February to a fresh 12.7°C (54.9°F). Weather in March »Weather in April
April in Koga, Japan, is an enjoyable spring month, with an average temperature fluctuating between 8.7°C (47.7°F) and 17.7°C (63.9°F). Koga's transition into April brings a rise in the average high-temperature, moving from a cool 12.7°C (54.9°F) in March to an enjoyable 17.7°C (63.9°F). Weather in April »Weather in May
May, the last month of the spring in Koga, is a warm month, with an average temperature ranging between max 23.5°C (74.3°F) and min 14.7°C (58.5°F). A shift in the average high-temperature is noticeable in May, changing from an enjoyable 17.7°C (63.9°F) in April to a warm 23.5°C (74.3°F). Weather in May »Weather in June
The first month of the summer, June, is still a warm month in Koga, Japan, with an average temperature varying between 25.8°C (78.4°F) and 18.3°C (64.9°F). With the onset of June, Koga's average high-temperature clocks in at a still moderately hot 25.8°C (78.4°F), showing a minor fluctuation from the previous month. Weather in June »Weather in July
July, the same as June, is another warm summer month in Koga, Japan, with an average temperature varying between 22.5°C (72.5°F) and 29.9°C (85.8°F). July comes with a subtle rise, with the average high-temperature adjusting from a moderately hot 25.8°C (78.4°F) in June to a still warm 29.9°C (85.8°F). Weather in July »Weather in August
August, the last month of the summer in Koga, is a tropical month, with an average temperature fluctuating between 31.8°C (89.2°F) and 23.8°C (74.8°F). In Koga, the average temperatures in August are the highest, with a peak at 31.8°C (89.2°F) and a low of 23.8°C (74.8°F). The heat index value for August is calculated to be an extremely hot 41°C (105.8°F). Weather in August »Weather in September
September, the first month of the autumn in Koga, is still a warm month, with an average temperature ranging between max 26.6°C (79.9°F) and min 19.6°C (67.3°F). The shift from August to September involves a decrease in the average high-temperature, from a tropical 31.8°C (89.2°F) to a moderately hot 26.6°C (79.9°F). Weather in September »Weather in October
October, like September, is an agreeable autumn month in Koga, Japan, with temperature in the range of an average low of 14.6°C (58.3°F) and an average high of 21°C (69.8°F). With October's arrival, Koga sees a decrease in average high-temperatures, moving from a moderately hot 26.6°C (79.9°F) in September to an agreeable 21°C (69.8°F). Weather in October »Weather in November
November, the last month of the autumn in Koga, is also a moderate month, with an average temperature ranging between min 8.7°C (47.7°F) and max 15.4°C (59.7°F). As November arrives, Koga's weather displays a decrease in high-temperatures, transitioning from October's pleasant 21°C (69.8°F) to a refreshing 15.4°C (59.7°F). Weather in November »Weather in December
The first month of the winter, December, is still a chilly month in Koga, Japan, with an average temperature ranging between max 9.6°C (49.3°F) and min 3.5°C (38.3°F). Koga's December weather shows a moderate shift in high-temperatures, falling from November's mild 15.4°C (59.7°F) to a chilly 9.6°C (49.3°F). Weather in December »Updated: Aug 28, 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
Temperature readings reach their annual highs in January, averaging 7.6°C (45.7°F) and a minimum average of 0.8°C (33.4°F).
The least humid month is January, with an average relative humidity of 60%.
Throughout the year, there are 165.6 rainfall days, and 838mm (32.99") of precipitation is accumulated.
Months with snowfall are January through March, November and December.
In Koga, during the entire year, snow falls for 4.5 days and aggregates up to 61mm (2.4") of snow.
The months with the lowest UV index are January and December, with an average maximum UV index of 2.
The month with the most snowfall in Koga is February, when snow falls for 2.3 days and typically aggregates up to 38mm (1.5") of snow.
February and November, with an average of 6.2h of sunshine, are months with the least sunshine.
April through October are months without snowfall.
The month with the longest days in Koga, Japan, is June, with an average of 14h and 36min of daylight.
With an average relative humidity of 76%, July is the most humid month.
The month with the highest UV index is July, with an average maximum UV index of 7.
August stands out as Koga's warmest month, with an average high-temperature of 31.8°C (89.2°F) and a low-temperature of 23.8°C (74.8°F).
August has the most sunshine of the year in Koga, with an average of 10h of sunshine.
The month with the most rainfall is October, when the rain falls for 16.1 days and typically aggregates up to 120mm (4.72") of precipitation.
The month with the least rainfall is December, when the rain falls for 7.3 days and typically collects 27mm (1.06") of precipitation.
December has the shortest days of the year, with an average of 9h and 42min of daylight.
Koga does not utilize Daylight Saving Time (DST). JST timezone is used throughout the entire year.
Average temperature
Koga, Japan
The warmest month (with the highest average high temperature) is August (31.8°C).
The month with the lowest average high temperature is January (7.6°C).
The month with the highest average low temperature is August (23.8°C).
The coldest month (with the lowest average low temperature) is January (0.8°C).
Average pressure
Koga, Japan
- Average pressure in January:
1016.5mbar - Average pressure in February:
1017.5mbar - Average pressure in March:
1015.8mbar - Average pressure in April:
1014.4mbar - Average pressure in May:
1012mbar - Average pressure in June:
1009.3mbar
- Average pressure in July:
1009.8mbar - Average pressure in August:
1010.4mbar - Average pressure in September:
1013.8mbar - Average pressure in October:
1017mbar - Average pressure in November:
1018.4mbar - Average pressure in December:
1016.5mbar
The month with the highest atmospheric pressure is November (1018.4mbar).
The month with the lowest atmospheric pressure is June (1009.3mbar).
Average wind speed
Koga, Japan
- Average wind speed in January:
10km/h - Average wind speed in February:
9.8km/h - Average wind speed in March:
10km/h - Average wind speed in April:
10.2km/h - Average wind speed in May:
9.2km/h - Average wind speed in June:
8.6km/h
- Average wind speed in July:
7.9km/h - Average wind speed in August:
8.1km/h - Average wind speed in September:
8.1km/h - Average wind speed in October:
8.7km/h - Average wind speed in November:
7.6km/h - Average wind speed in December:
9.1km/h
The windiest month (with the highest average wind speed) is April (10.2km/h).
The calmest month (with the lowest average wind speed) is November (7.6km/h).
Average humidity
Koga, Japan
The month with the highest relative humidity is July (76%).
The month with the lowest relative humidity is January (60%).
Average rainfall
Koga, Japan
The wettest month (with the highest rainfall) is October (120mm).
The driest month (with the least rainfall) is December (27mm).
Average rainfall days
Koga, Japan
- Average rainfall days in January:
5.6 days - Average rainfall days in February:
6.8 days - Average rainfall days in March:
13.1 days - Average rainfall days in April:
14.9 days - Average rainfall days in May:
14.8 days - Average rainfall days in June:
19 days
- Average rainfall days in July:
22.1 days - Average rainfall days in August:
18.3 days - Average rainfall days in September:
17.1 days - Average rainfall days in October:
16.1 days - Average rainfall days in November:
10.5 days - Average rainfall days in December:
7.3 days
The month with the highest number of rainy days is July (22.1 days).
The month with the least rainy days is January (5.6 days).
Average snowfall
Koga, Japan
The month with the highest snowfall is February (38mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days
Koga, Japan
- Average snowfall days in January:
1.2 days - Average snowfall days in February:
2.3 days - Average snowfall days in March:
0.5 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:
0.1 days - Average snowfall days in December:
0.4 days
The month with the highest number of snowfall days is February (2.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Koga, 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 42min
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 42min).
- Average sunshine in January:
6h and 42min - Average sunshine in February:
6h and 12min - Average sunshine in March:
7h and 6min - Average sunshine in April:
9h and 18min - Average sunshine in May:
9h and 30min - Average sunshine in June:
8h and 42min
- Average sunshine in July:
9h and 0min - Average sunshine in August:
10h and 0min - Average sunshine in September:
7h and 54min - Average sunshine in October:
7h and 0min - Average sunshine in November:
6h and 12min - Average sunshine in December:
6h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The months with the least sunshine are February and November (Average sunshine: 6h and 12min).
Average sunshine days
Koga, Japan
- Average sunshine days in January:
23.8 days - Average sunshine days in February:
18.3 days - Average sunshine days in March:
15.9 days - Average sunshine days in April:
12.8 days - Average sunshine days in May:
14.1 days - Average sunshine days in June:
8 days
- Average sunshine days in July:
5.8 days - Average sunshine days in August:
9.6 days - Average sunshine days in September:
9.9 days - Average sunshine days in October:
12.9 days - Average sunshine days in November:
18.1 days - Average sunshine days in December:
22.5 days
The month with the most sunshine days is January (23.8 days).
The month with the least sunshine days is July (5.8 days).
Average UV index
Koga, 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
Koga, Japan
The month with the most cloud cover is June (Cloud cover 46).
The month with the least cloud cover is January (Cloud cover 25).
Average visibility
Koga, Japan
The months with the highest visibility are January, February, March, November and December (10km).
The months with the lowest visibility are April, May, June, July, August, September and October (9km).
