Climate and monthly weather forecastTonami, Japan
Climate and monthly weather forecast
Weather in January
January, the same as December, is another cold winter month in Tonami, Japan, with an average temperature varying between -2.5°C (27.5°F) and 3°C (37.4°F). Tonami records the coldest temperatures in January, averaging a high of 3°C (37.4°F) and a low of -2.5°C (27.5°F). Weather in January »Weather in February
February, the last month of the winter in Tonami, is also a wintry month, with an average temperature varying between 3.9°C (39°F) and -2.3°C (27.9°F). As February unfolds, the average high-temperature reaches a still wintry 3.9°C (39°F), hinting at a slight fluctuation from the previous month. Weather in February »Weather in March
The first month of the spring, March, is a chilly month in Tonami, Japan, with an average temperature varying between 0.9°C (33.6°F) and 8.3°C (46.9°F). In March, the meteorological conditions subtly change with the average high-temperature edging from a cold 3.9°C (39°F) in February to a frosty 8.3°C (46.9°F). Weather in March »Weather in April
April in Tonami, Japan, is a moderate spring month, with an average temperature fluctuating between 5.6°C (42.1°F) and 13.8°C (56.8°F). April's arrival signals an increase in average high-temperatures, moving from March's chilly 8.3°C (46.9°F) to a moderate 13.8°C (56.8°F). Weather in April »Weather in May
May, the last month of the spring in Tonami, is a pleasant month, with an average temperature varying between 10.5°C (50.9°F) and 20.3°C (68.5°F). The onset of May brings a temperature shift, with the average high-temperature moving from a mild 13.8°C (56.8°F) in April to a pleasant 20.3°C (68.5°F). Weather in May »Weather in June
The first month of the summer, June, is a warm month in Tonami, Japan, with temperature in the range of an average high of 24.1°C (75.4°F) and an average low of 14.6°C (58.3°F). June signifies a subtle uplift in the average high-temperature, adjusting from an agreeable 20.3°C (68.5°F) in May to a moderately hot 24.1°C (75.4°F). Weather in June »Weather in July
July, the same as June, is another warm summer month in Tonami, Japan, with an average temperature varying between 27.8°C (82°F) and 19.6°C (67.3°F). With the transition into July, Tonami experiences a subtle uplift in average high-temperatures, adjusting from 24.1°C (75.4°F) in June to a still moderately hot 27.8°C (82°F). Weather in July »Weather in August
August, the last month of the summer in Tonami, is another warm month, with an average temperature varying between 29.3°C (84.7°F) and 20.8°C (69.4°F). In Tonami, August records the highest average temperatures, peaking at 29.3°C (84.7°F) and reaching a low of 20.8°C (69.4°F). The heat index for August is computed to be a sweltering 35°C (95°F). Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Tonami, Japan, with an average temperature ranging between min 16.9°C (62.4°F) and max 24.4°C (75.9°F). With the onset of September, Tonami experiences a modest temperature adjustment, with the average high-temperature gently receding from 29.3°C (84.7°F) in August to a still moderately hot 24.4°C (75.9°F). Weather in September »Weather in October
October, like September, in Tonami, Japan, is another comfortable autumn month, with an average temperature varying between 11.5°C (52.7°F) and 18.8°C (65.8°F). The beginning of October involves a decrease in the average high-temperature, transitioning from a moderately hot 24.4°C (75.9°F) in September to a comfortable 18.8°C (65.8°F). Weather in October »Weather in November
November, the last month of the autumn in Tonami, is also a fresh month, with an average temperature ranging between max 12.7°C (54.9°F) and min 6.4°C (43.5°F). With the onset of November, Tonami experiences a modest temperature adjustment, with the average high-temperature receding from a refreshing 18.8°C (65.8°F) in October to a fresh 12.7°C (54.9°F). Weather in November »Weather in December
The first month of the winter, December, is also a frosty month in Tonami, Japan, with temperature in the range of an average high of 6.3°C (43.3°F) and an average low of 1.1°C (34°F). Setting in of December comes with a decrease in the average high-temperature, moving from a cool 12.7°C (54.9°F) in November to a frosty 6.3°C (43.3°F). Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Tonami, Japan
The warmest month (with the highest average high temperature) is August (29.3°C).
The month with the lowest average high temperature is January (3°C).
The month with the highest average low temperature is August (20.8°C).
The coldest month (with the lowest average low temperature) is January (-2.5°C).
Average pressure
Tonami, Japan
- Average pressure in January:
1018.6mbar - Average pressure in February:
1019.5mbar - Average pressure in March:
1017.3mbar - Average pressure in April:
1015mbar - Average pressure in May:
1012.2mbar - Average pressure in June:
1009.1mbar
- Average pressure in July:
1009.4mbar - Average pressure in August:
1010mbar - Average pressure in September:
1013.5mbar - Average pressure in October:
1017.5mbar - Average pressure in November:
1019.4mbar - Average pressure in December:
1018.2mbar
The month with the highest atmospheric pressure is February (1019.5mbar).
The month with the lowest atmospheric pressure is June (1009.1mbar).
Average wind speed
Tonami, Japan
- Average wind speed in January:
10km/h - Average wind speed in February:
9.6km/h - Average wind speed in March:
9.7km/h - Average wind speed in April:
9.1km/h - Average wind speed in May:
8.3km/h - Average wind speed in June:
6.9km/h
- Average wind speed in July:
7.3km/h - Average wind speed in August:
6.9km/h - Average wind speed in September:
7.5km/h - Average wind speed in October:
8.4km/h - Average wind speed in November:
9.1km/h - Average wind speed in December:
10.7km/h
The windiest month (with the highest average wind speed) is December (10.7km/h).
The calmest months (with the lowest average wind speed) are June and August (6.9km/h).
Average humidity
Tonami, Japan
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is May (71%).
Average rainfall
Tonami, Japan
- Average rainfall in January:
118mm - Average rainfall in February:
81mm - Average rainfall in March:
93mm - Average rainfall in April:
92mm - Average rainfall in May:
77mm - Average rainfall in June:
117mm
- Average rainfall in July:
177mm - Average rainfall in August:
134mm - Average rainfall in September:
135mm - Average rainfall in October:
121mm - Average rainfall in November:
88mm - Average rainfall in December:
138mm
The wettest month (with the highest rainfall) is July (177mm).
The driest month (with the least rainfall) is May (77mm).
Average rainfall days
Tonami, Japan
- Average rainfall days in January:
14.6 days - Average rainfall days in February:
11.6 days - Average rainfall days in March:
14.8 days - Average rainfall days in April:
14.8 days - Average rainfall days in May:
12.9 days - Average rainfall days in June:
15.3 days
- Average rainfall days in July:
20.7 days - Average rainfall days in August:
18 days - Average rainfall days in September:
17.1 days - Average rainfall days in October:
15.6 days - Average rainfall days in November:
16.7 days - Average rainfall days in December:
18.9 days
The month with the highest number of rainy days is July (20.7 days).
The month with the least rainy days is February (11.6 days).
Average snowfall
Tonami, Japan
The month with the highest snowfall is January (440mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days
Tonami, Japan
- Average snowfall days in January:
15.4 days - Average snowfall days in February:
11.8 days - Average snowfall days in March:
5.6 days - Average snowfall days in April:
0.8 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:
0.3 days - Average snowfall days in December:
8.9 days
The month with the highest number of snowfall days is January (15.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Tonami, Japan
- Average daylight in January:
10h and 0min - Average daylight in February:
10h and 48min - 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 24min - 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 12min - 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:
3h and 18min - Average sunshine in February:
3h and 42min - Average sunshine in March:
6h and 0min - Average sunshine in April:
8h and 54min - Average sunshine in May:
9h and 42min - Average sunshine in June:
9h and 36min
- Average sunshine in July:
9h and 12min - Average sunshine in August:
10h and 18min - Average sunshine in September:
8h and 18min - Average sunshine in October:
6h and 42min - Average sunshine in November:
5h and 12min - Average sunshine in December:
3h and 42min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days
Tonami, Japan
- Average sunshine days in January:
7.1 days - Average sunshine days in February:
8.8 days - Average sunshine days in March:
11.5 days - Average sunshine days in April:
13.8 days - Average sunshine days in May:
16.7 days - Average sunshine days in June:
13 days
- Average sunshine days in July:
8.4 days - Average sunshine days in August:
10.3 days - Average sunshine days in September:
10.8 days - Average sunshine days in October:
13.7 days - Average sunshine days in November:
11.5 days - Average sunshine days in December:
7.3 days
The month with the most sunshine days is May (16.7 days).
The month with the least sunshine days is January (7.1 days).
Average UV index
Tonami, Japan
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Tonami, Japan
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is May (Cloud cover 34).
Average visibility
Tonami, Japan
The months with the highest visibility are March, April, May, June, August, September, October, November and December (9km).
The months with the lowest visibility are January, February and July (8km).





