Climate and monthly weather forecastSayama, Japan
Climate and monthly weather forecast
Weather in January
January, like December, is another chilly winter month in Sayama, Japan, with an average temperature ranging between min 1.4°C (34.5°F) and max 8.4°C (47.1°F). With its high average temperature of 8.4°C (47.1°F) and a low of 1.4°C (34.5°F), January is regarded as the coldest month. Weather in January »Weather in February
February, the last month of the winter in Sayama, is another chilly month, with an average temperature fluctuating between 2°C (35.6°F) and 9.3°C (48.7°F). February brings an average high-temperature of a still chilly 9.3°C (48.7°F), nearly identical to the preceding month. Weather in February »Weather in March
The first month of the spring, March, is a refreshing month in Sayama, Japan, with an average temperature varying between 5°C (41°F) and 13.1°C (55.6°F). March introduces a minor temperature shift, with average high-temperatures adjusting from February's frosty 9.3°C (48.7°F) to a moderate 13.1°C (55.6°F). Weather in March »Weather in April
April in Sayama, Japan, is an enjoyable spring month, with an average temperature varying between 18°C (64.4°F) and 9.3°C (48.7°F). With the onset of April, Sayama observes a minor temperature ascent, with the average high-temperature adjusting from March's mild 13.1°C (55.6°F) to a still refreshing 18°C (64.4°F). Weather in April »Weather in May
May, the last month of the spring in Sayama, is a warm month, with temperature in the range of an average low of 15.3°C (59.5°F) and an average high of 23.9°C (75°F). May's onset brings a temperature rise, moving from an enjoyable 18°C (64.4°F) in April to a moderately hot 23.9°C (75°F). Weather in May »Weather in June
June, the first month of the summer in Sayama, is still a warm month, with temperature in the range of an average low of 18.9°C (66°F) and an average high of 26.1°C (79°F). Sayama experiences a subtle adjustment in high-temperatures to a still warm 26.1°C (79°F) with the onset of June, maintaining near parity with May's 23.9°C (75°F). Weather in June »Weather in July
July is a hot summer month in Sayama, Japan, with an average temperature ranging between min 23.1°C (73.6°F) and max 30.4°C (86.7°F). Sayama's transition into July is marked by a minor temperature shift, moving from a moderately hot 26.1°C (79°F) in June to a hot 30.4°C (86.7°F). Weather in July »Weather in August
August, the last month of the summer in Sayama, is another tropical month, with an average temperature varying between 24.7°C (76.5°F) and 32°C (89.6°F). Sayama's warmest temperatures are experienced in August, with average high temperatures of 32°C (89.6°F) and lows of 24.7°C (76.5°F). For most parts of August, the heat index is computed to be an extremely hot 40°C (104°F). Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Sayama, Japan, with temperature in the range of an average high of 27.4°C (81.3°F) and an average low of 20.5°C (68.9°F). With the arrival of September, Sayama experiences a modest decline in average high-temperatures, transitioning from a hot 32°C (89.6°F) in August to a moderately hot 27.4°C (81.3°F). Weather in September »Weather in October
October, like September, is an agreeable autumn month in Sayama, Japan, with an average temperature varying between 15.2°C (59.4°F) and 21.5°C (70.7°F). During Sayama's transition into October, the average high-temperature lessens, moving from a moderately hot 27.4°C (81.3°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 Sayama, is also a moderate month, with temperature in the range of an average low of 9.5°C (49.1°F) and an average high of 15.8°C (60.4°F). Sayama's progression into November involves a drop in the average high-temperature, receding from an agreeable 21.5°C (70.7°F) in October to a mild 15.8°C (60.4°F). Weather in November »Weather in December
December, the first month of the winter in Sayama, is still a cool month, with an average temperature fluctuating between 4.3°C (39.7°F) and 10.5°C (50.9°F). With the onset of December, Sayama experiences a modest temperature adjustment, with the average high-temperature receding from a moderate 15.8°C (60.4°F) in November to a cool 10.5°C (50.9°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 Sayama, exhibiting average temperatures of 8.4°C (47.1°F) at the peak and 1.4°C (34.5°F) at the base.
January is the least humid month, with an average relative humidity of 58%.
In Sayama, Japan, during the entire year, the rain falls for 146.2 days and collects up to 669mm (26.34") of precipitation.
January through March and November are months with snowfall in Sayama, Japan.
In Sayama, Japan, during the entire year, snow falls for 3.7 days and aggregates up to 62mm (2.44") of snow.
With an average maximum UV index of 2, January is the month with the lowest UV index.
The month with the most snowfall in Sayama is February, when snow falls for 2.1 days and typically aggregates up to 39mm (1.54") of snow.
February and November, with an average of 6.2h of sunshine, are months with the least sunshine.
In Sayama, Japan, snow does not fall in April through October and December.
June and July, with an average relative humidity of 73%, are most humid months.
With an average of 14h and 30min of daylight, June has the longest days of the year in Sayama.
July is the month with the highest UV index, with an average maximum UV index of 7.
Sayama's warmest weather arrives in August, when temperatures average a high of 32°C (89.6°F) and a low of 24.7°C (76.5°F).
With an average of 9.8h of sunshine, August has the most sunshine of the year in Sayama, Japan.
October is the month with the most rainfall. Rain falls for 15.3 days and accumulates 102mm (4.02") of precipitation.
The month with the least rainfall is December, when the rain falls for 5.8 days and typically collects 21mm (0.83") of precipitation.
The month with the shortest days in Sayama is December, with an average of 9h and 48min of daylight.
Sayama, Japan, does not observe Daylight Saving Time (DST). JST timezone is used throughout the entire year.
Average temperature
Sayama, Japan
The warmest month (with the highest average high temperature) is August (32°C).
The month with the lowest average high temperature is January (8.4°C).
The month with the highest average low temperature is August (24.7°C).
The coldest month (with the lowest average low temperature) is January (1.4°C).
Average pressure
Sayama, Japan
- Average pressure in January:
1016.6mbar - Average pressure in February:
1017.5mbar - Average pressure in March:
1015.7mbar - Average pressure in April:
1014.3mbar - Average pressure in May:
1012mbar - Average pressure in June:
1009.2mbar
- Average pressure in July:
1009.8mbar - Average pressure in August:
1010.3mbar - Average pressure in September:
1013.7mbar - Average pressure in October:
1016.8mbar - Average pressure in November:
1018.4mbar - Average pressure in December:
1016.6mbar
The month with the highest atmospheric pressure is November (1018.4mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed
Sayama, Japan
- Average wind speed in January:
11.2km/h - Average wind speed in February:
11.3km/h - Average wind speed in March:
11.4km/h - Average wind speed in April:
11.5km/h - Average wind speed in May:
10.4km/h - Average wind speed in June:
9.4km/h
- Average wind speed in July:
8.7km/h - Average wind speed in August:
8.8km/h - Average wind speed in September:
9km/h - Average wind speed in October:
9.9km/h - Average wind speed in November:
8.9km/h - Average wind speed in December:
10.3km/h
The windiest month (with the highest average wind speed) is April (11.5km/h).
The calmest month (with the lowest average wind speed) is July (8.7km/h).
Average humidity
Sayama, Japan
The months with the highest relative humidity are June and July (73%).
The month with the lowest relative humidity is January (58%).
Average rainfall
Sayama, Japan
The wettest month (with the highest rainfall) is October (102mm).
The driest month (with the least rainfall) is December (21mm).
Average rainfall days
Sayama, Japan
- Average rainfall days in January:
4.8 days - Average rainfall days in February:
6.7 days - Average rainfall days in March:
11.7 days - Average rainfall days in April:
13.2 days - Average rainfall days in May:
13.3 days - Average rainfall days in June:
18.5 days
- Average rainfall days in July:
16.8 days - Average rainfall days in August:
16.3 days - Average rainfall days in September:
14.7 days - Average rainfall days in October:
15.3 days - Average rainfall days in November:
9.1 days - Average rainfall days in December:
5.8 days
The month with the highest number of rainy days is June (18.5 days).
The month with the least rainy days is January (4.8 days).
Average snowfall
Sayama, Japan
The month with the highest snowfall is February (39mm).
The months with the least snowfall are April, May, June, July, August, September, October and December (0mm).
Average snowfall days
Sayama, Japan
- Average snowfall days in January:
1 days - Average snowfall days in February:
2.1 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 days
The month with the highest number of snowfall days is February (2.1 days).
The months with the least snowfall days are April, May, June, July, August, September, October and December (0 days).
Average daylight / Average sunshine
Sayama, 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 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 42min - Average sunshine in February:
6h and 12min - Average sunshine in March:
7h and 0min - Average sunshine in April:
9h and 12min - 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:
9h and 48min - Average sunshine in September:
7h and 42min - Average sunshine in October:
6h and 42min - Average sunshine in November:
6h and 12min - Average sunshine in December:
6h and 30min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The months with the least sunshine are February and November (Average sunshine: 6h and 12min).
Average sunshine days
Sayama, Japan
- Average sunshine days in January:
25.3 days - Average sunshine days in February:
18.7 days - Average sunshine days in March:
18 days - Average sunshine days in April:
15.1 days - Average sunshine days in May:
15.8 days - Average sunshine days in June:
9.1 days
- Average sunshine days in July:
9.9 days - Average sunshine days in August:
11.3 days - Average sunshine days in September:
11.7 days - Average sunshine days in October:
14.1 days - Average sunshine days in November:
19.2 days - Average sunshine days in December:
24.5 days
The month with the most sunshine days is January (25.3 days).
The month with the least sunshine days is June (9.1 days).
Average UV index
Sayama, Japan
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover
Sayama, Japan
The month with the most cloud cover is June (Cloud cover 45).
The month with the least cloud cover is January (Cloud cover 26).
Average visibility
Sayama, Japan
The months with the highest visibility are January, February, March, April, May, November and December (10km).
The months with the lowest visibility are June, July, August, September and October (9km).
