Climate and monthly weather forecastRoppongi, Japan
Climate and monthly weather forecast
Weather in January
January, the same as December, in Roppongi, Japan, is a frosty winter month, with an average temperature fluctuating between 8.8°C (47.8°F) and 3°C (37.4°F). In Roppongi, January is the month with the lowest recorded average temperatures, measuring a high of 8.8°C (47.8°F) and a low of 3°C (37.4°F). Weather in January »Weather in February
The last month of the winter, February, is also a frosty month in Roppongi, Japan, with an average temperature fluctuating between 3.7°C (38.7°F) and 9.8°C (49.6°F). The introduction of February sees an average high-temperature of a still frosty 9.8°C (49.6°F), hardly deviating from January. Weather in February »Weather in March
March, the first month of the spring in Roppongi, is a cool month, with an average temperature fluctuating between 12.9°C (55.2°F) and 6.3°C (43.3°F). A slight uplift in the average high-temperature marks March, adjusting from February's chilly 9.8°C (49.6°F) to a fresh 12.9°C (55.2°F). Weather in March »Weather in April
April is an enjoyable spring month in Roppongi, Japan, with temperature in the range of an average low of 10.8°C (51.4°F) and an average high of 17.6°C (63.7°F). The average high-temperature mildly increases in April, edging from a cool 12.9°C (55.2°F) in March to an enjoyable 17.6°C (63.7°F). Weather in April »Weather in May
May, the last month of the spring in Roppongi, is a pleasant month, with temperature in the range of an average high of 22.7°C (72.9°F) and an average low of 16.1°C (61°F). In Roppongi, the onset of May comes with an increased average high-temperature, moving from April's enjoyable 17.6°C (63.7°F) to an agreeable 22.7°C (72.9°F). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in Roppongi, Japan, with an average temperature ranging between max 24.8°C (76.6°F) and min 19.3°C (66.7°F). June's arrival shows an average high-temperature of a moderately hot 24.8°C (76.6°F), hardly different from the previous month. Weather in June »Weather in July
July, like June, in Roppongi, Japan, is another warm summer month, with an average temperature varying between 28.8°C (83.8°F) and 23.2°C (73.8°F). With the onset of July, Roppongi observes a minor temperature ascent, with the average high-temperature adjusting from June's moderately hot 24.8°C (76.6°F) to a still warm 28.8°C (83.8°F). Weather in July »Weather in August
August, the last month of the summer in Roppongi, is a hot month, with temperature in the range of an average low of 24.9°C (76.8°F) and an average high of 30.6°C (87.1°F). August brings the highest temperatures, with an average high of 30.6°C (87.1°F) and an average low of 24.9°C (76.8°F). The heat index value during August is evaluated at a fiery hot 38°C (100.4°F). Weather in August »Weather in September
September, the first month of the autumn in Roppongi, is also a moderately hot month, with an average temperature varying between 21.5°C (70.7°F) and 26.9°C (80.4°F). The arrival of September correlates with a minor temperature reduction, down from August's hot 30.6°C (87.1°F) to a moderately hot 26.9°C (80.4°F). Weather in September »Weather in October
October, the same as September, in Roppongi, Japan, is another pleasant autumn month, with an average temperature ranging between min 16.4°C (61.5°F) and max 21.5°C (70.7°F). The average high-temperature decreases in October, shifting from a warm 26.9°C (80.4°F) in September to a pleasant 21.5°C (70.7°F). Weather in October »Weather in November
November, the last month of the autumn in Roppongi, is another refreshing month, with an average temperature fluctuating between 16.5°C (61.7°F) and 10.9°C (51.6°F). The onset of November results in a decrease in the average high-temperature, receding from a pleasant 21.5°C (70.7°F) in October to an enjoyable 16.5°C (61.7°F). Weather in November »Weather in December
December, the first month of the winter in Roppongi, is still a cool month, with an average temperature varying between 5.9°C (42.6°F) and 11.2°C (52.2°F). A change in temperatures is noted as November gives way to December, with average highs reducing from a refreshing 16.5°C (61.7°F) to a cool 11.2°C (52.2°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
Roppongi experiences its lowest temperatures in January, with an average peak of 8.8°C (47.8°F) and a low of 3°C (37.4°F).
The least humid month in Roppongi, Japan, is January, with an average relative humidity of 60%.
In Roppongi, Japan, during the entire year, the rain falls for 125.3 days and collects up to 359mm (14.13") of precipitation.
Months with snowfall in Roppongi are January and February.
In Roppongi, during the entire year, snow falls for 2.1 days and aggregates up to 5mm (0.2") of snow.
With an average maximum UV index of 2, January is the month with the lowest UV index in Roppongi.
The month with the least rainfall is February, when the rain falls for 6.1 days and typically collects 10mm (0.39") of precipitation.
The month with the most snowfall in Roppongi, Japan, is February, when snow falls for 1.2 days and typically aggregates up to 4mm (0.16") of snow.
With an average of 5.7h of sunshine, February has the least sunshine of the year.
In Roppongi, Japan, snow does not fall in March through December.
With an average of 14h and 30min of daylight, June has the longest days of the year in Roppongi.
July is the most humid month in Roppongi, with an average relative humidity of 79%.
The month with the highest UV index in Roppongi, Japan, is July, with an average maximum UV index of 7.
August, with an average high of 30.6°C (87.1°F) and a low of 24.9°C (76.8°F), signifies the warmest month of the year.
The month with the most sunshine in Roppongi is August, with an average of 10.3h of sunshine.
September is the month with the most rainfall in Roppongi. Rain falls for 12.9 days and accumulates 54mm (2.13") of precipitation.
The month with the shortest days in Roppongi, Japan, is December, with an average of 9h and 48min of daylight.
Roppongi does not utilize Daylight Saving Time (DST). JST timezone is used over the entire year.
Average temperature
Roppongi, Japan
The warmest month (with the highest average high temperature) is August (30.6°C).
The month with the lowest average high temperature is January (8.8°C).
The month with the highest average low temperature is August (24.9°C).
The coldest month (with the lowest average low temperature) is January (3°C).
Average pressure
Roppongi, Japan
- Average pressure in January:
1016.1mbar - Average pressure in February:
1017.1mbar - Average pressure in March:
1015.5mbar - Average pressure in April:
1014.2mbar - Average pressure in May:
1012mbar - Average pressure in June:
1009.2mbar
- Average pressure in July:
1009.8mbar - Average pressure in August:
1010.2mbar - Average pressure in September:
1013.4mbar - Average pressure in October:
1016.6mbar - Average pressure in November:
1018.1mbar - Average pressure in December:
1016.2mbar
The month with the highest atmospheric pressure is November (1018.1mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed
Roppongi, Japan
- Average wind speed in January:
14.3km/h - Average wind speed in February:
15km/h - Average wind speed in March:
15.3km/h - Average wind speed in April:
15.6km/h - Average wind speed in May:
14km/h - Average wind speed in June:
12.4km/h
- Average wind speed in July:
13.4km/h - Average wind speed in August:
12.7km/h - Average wind speed in September:
13km/h - Average wind speed in October:
13.8km/h - Average wind speed in November:
12.3km/h - Average wind speed in December:
13.5km/h
The windiest month (with the highest average wind speed) is April (15.6km/h).
The calmest month (with the lowest average wind speed) is November (12.3km/h).
Average humidity
Roppongi, Japan
The month with the highest relative humidity is July (79%).
The month with the lowest relative humidity is January (60%).
Average rainfall
Roppongi, Japan
The wettest month (with the highest rainfall) is September (54mm).
The driest month (with the least rainfall) is February (10mm).
Average rainfall days
Roppongi, Japan
- Average rainfall days in January:
4.5 days - Average rainfall days in February:
6.1 days - Average rainfall days in March:
10.3 days - Average rainfall days in April:
11.2 days - Average rainfall days in May:
10.2 days - Average rainfall days in June:
15.2 days
- Average rainfall days in July:
16.1 days - Average rainfall days in August:
13.7 days - Average rainfall days in September:
12.9 days - Average rainfall days in October:
11.1 days - Average rainfall days in November:
8.1 days - Average rainfall days in December:
5.9 days
The month with the highest number of rainy days is July (16.1 days).
The month with the least rainy days is January (4.5 days).
Average snowfall
Roppongi, Japan
The month with the highest snowfall is February (4mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days
Roppongi, Japan
- Average snowfall days in January:
0.6 days - Average snowfall days in February:
1.2 days - Average snowfall days in March:
0.1 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:
0.2 days
The month with the highest number of snowfall days is February (1.2 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight / Average sunshine
Roppongi, Japan
- Average daylight in January:
10h and 6min - 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 0min - 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 30min - Average sunshine in February:
5h and 42min - Average sunshine in March:
6h and 42min - Average sunshine in April:
8h and 54min - Average sunshine in May:
9h and 18min - Average sunshine in June:
8h and 36min
- Average sunshine in July:
9h and 24min - Average sunshine in August:
10h and 18min - Average sunshine in September:
7h and 48min - Average sunshine in October:
6h and 42min - Average sunshine in November:
6h and 0min - Average sunshine in December:
6h and 12min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 5h and 42min).
Average sunshine days
Roppongi, Japan
- Average sunshine days in January:
25.4 days - Average sunshine days in February:
20.1 days - Average sunshine days in March:
18.8 days - Average sunshine days in April:
16.8 days - Average sunshine days in May:
18.5 days - Average sunshine days in June:
11.5 days
- Average sunshine days in July:
12 days - Average sunshine days in August:
14.3 days - Average sunshine days in September:
13.8 days - Average sunshine days in October:
17.4 days - Average sunshine days in November:
20.5 days - Average sunshine days in December:
24.3 days
The month with the most sunshine days is January (25.4 days).
The month with the least sunshine days is June (11.5 days).
Average UV index
Roppongi, 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
Roppongi, Japan
The months with the most cloud cover are June and October (Cloud cover 44).
The month with the least cloud cover is January (Cloud cover 28).
Average visibility
Roppongi, Japan
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (10km).
The month with the lowest visibility is July (9km).
