Climate and monthly weather forecastNiiza, Japan
Climate and monthly weather forecast
Weather in January
January, the same as December, in Niiza, Japan, is another chilly winter month, with temperature in the range of an average low of 2°C (35.6°F) and an average high of 8.5°C (47.3°F). January stands out as Niiza's coldest month, with temperatures ranging between an average high of 8.5°C (47.3°F) and a low of 2°C (35.6°F). Weather in January »Weather in February
February, the last month of the winter in Niiza, is another chilly month, with an average temperature varying between 2.7°C (36.9°F) and 9.6°C (49.3°F). February commences with an average high-temperature of a still chilly 9.6°C (49.3°F), showing little deviation from January's 8.5°C (47.3°F). Weather in February »Weather in March
The first month of the spring, March, is a refreshing month in Niiza, Japan, with temperature in the range of an average high of 13.1°C (55.6°F) and an average low of 5.5°C (41.9°F). Niiza observes a slight ascent in average high-temperatures during March, adjusting from a chilly 9.6°C (49.3°F) in February to a mild 13.1°C (55.6°F). Weather in March »Weather in April
April in Niiza, Japan, is an enjoyable spring month, with an average temperature varying between 9.8°C (49.6°F) and 17.8°C (64°F). April's onset is marked by a subtle temperature increase, moving from a moderate 13.1°C (55.6°F) in March to a still refreshing 17.8°C (64°F). Weather in April »Weather in May
May, the last month of the spring in Niiza, is a warm month, with an average temperature varying between 23.6°C (74.5°F) and 15.8°C (60.4°F). As April transitions into May, a change in temperatures is observed, with average highs moving from an enjoyable 17.8°C (64°F) to a moderately hot 23.6°C (74.5°F). Weather in May »Weather in June
June, the first month of the summer in Niiza, is also a moderately hot month, with an average temperature ranging between max 25.9°C (78.6°F) and min 19.3°C (66.7°F). Niiza experiences a transition to a still warm 25.9°C (78.6°F) in average high-temperatures with the arrival of June, not greatly differing from May's 23.6°C (74.5°F). Weather in June »Weather in July
July in Niiza, Japan, is a tropical summer month, with an average temperature ranging between max 30.3°C (86.5°F) and min 23.4°C (74.1°F). The arrival of July signals a slight increase in the average high-temperature, moving from a warm 25.9°C (78.6°F) in June to a hot 30.3°C (86.5°F). Weather in July »Weather in August
The last month of the summer, August, is also a hot month in Niiza, Japan, with an average temperature fluctuating between 31.9°C (89.4°F) and 25°C (77°F). August registers as the month with the highest average temperatures, reaching 31.9°C (89.4°F) at its peak and 25°C (77°F) at the lowest. August's mean heat index is appraised at a blisteringly hot 40°C (104°F). Weather in August »Weather in September
September, the first month of the autumn in Niiza, is still a warm month, with an average temperature fluctuating between 20.9°C (69.6°F) and 27.4°C (81.3°F). The transition into September involves a small decrease in the average high-temperature, dipping slightly from a hot 31.9°C (89.4°F) in August to a warm 27.4°C (81.3°F). Weather in September »Weather in October
October, the same as September, in Niiza, Japan, is another pleasant autumn month, with temperature in the range of an average low of 15.9°C (60.6°F) and an average high of 21.6°C (70.9°F). Observing a mild shift, the average high-temperature during October reduces from September's warm 27.4°C (81.3°F) to an agreeable 21.6°C (70.9°F). Weather in October »Weather in November
November, the last month of the autumn in Niiza, is also an enjoyable month, with an average temperature varying between 16.2°C (61.2°F) and 10°C (50°F). With the onset of November, Niiza's average high-temperature adjusts, receding from October's pleasant 21.6°C (70.9°F) to an enjoyable 16.2°C (61.2°F). Weather in November »Weather in December
December, the first month of the winter in Niiza, is also a fresh month, with an average temperature ranging between min 5.1°C (41.2°F) and max 10.9°C (51.6°F). With December's arrival, Niiza's weather changes as the average high-temperature falls from a refreshing 16.2°C (61.2°F) in November to a fresh 10.9°C (51.6°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
Niiza's temperature records reveal January as the coldest month, marked by average highs of 8.5°C (47.3°F) and lows of 2°C (35.6°F).
January is the least humid month in Niiza, Japan, with an average relative humidity of 58%.
In Niiza, Japan, during the entire year, the rain falls for 161.9 days and collects up to 857mm (33.74") of precipitation.
Months with snowfall in Niiza, Japan, are January through March and November.
In Niiza, during the entire year, snow falls for 4.8 days and aggregates up to 68mm (2.68") of snow.
January and February, with an average maximum UV index of 2, are months with the lowest UV index.
February and December are months with the least rain in Niiza when the rain falls for 8.4 days and typically aggregates up to 34mm (1.34") of rain.
The month with the most snowfall is February, when snow falls for 2.5 days and typically aggregates up to 39mm (1.54") of snow.
The month with the least sunshine is February, with an average of 6h of sunshine.
April through October and December are months without snowfall in Niiza, Japan.
The months with the highest humidity in Niiza are June and July, with an average relative humidity of 74%.
June has the longest days of the year in Niiza, with an average of 14h and 30min of daylight.
The month with the highest UV index in Niiza is July, with an average maximum UV index of 7.
With average temperatures fluctuating between a high of 31.9°C (89.4°F) and a low of 25°C (77°F), August stands out as the warmest month.
With an average of 10.1h of sunshine, August has the most sunshine of the year in Niiza, Japan.
The month with the most rainfall in Niiza is October, when the rain falls for 14.9 days and typically aggregates up to 121mm (4.76") of precipitation.
The month with the shortest days in Niiza is December, with an average of 9h and 48min of daylight.
Niiza, Japan, does not utilize Daylight Saving Time (DST). JST timezone is used throughout the entire year.
Average temperature
Niiza, Japan
The warmest month (with the highest average high temperature) is August (31.9°C).
The month with the lowest average high temperature is January (8.5°C).
The month with the highest average low temperature is August (25°C).
The coldest month (with the lowest average low temperature) is January (2°C).
Average pressure
Niiza, Japan
- Average pressure in January:
1016.5mbar - Average pressure in February:
1017.4mbar - Average pressure in March:
1015.6mbar - 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:
1013.6mbar - Average pressure in October:
1016.7mbar - Average pressure in November:
1018.2mbar - Average pressure in December:
1016.5mbar
The month with the highest atmospheric pressure is November (1018.2mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed
Niiza, Japan
- Average wind speed in January:
11.8km/h - Average wind speed in February:
12.3km/h - Average wind speed in March:
12.6km/h - Average wind speed in April:
12.9km/h - Average wind speed in May:
11.8km/h - Average wind speed in June:
10.6km/h
- Average wind speed in July:
10.3km/h - Average wind speed in August:
10.3km/h - Average wind speed in September:
10.4km/h - Average wind speed in October:
11.4km/h - Average wind speed in November:
10.1km/h - Average wind speed in December:
11.1km/h
The windiest month (with the highest average wind speed) is April (12.9km/h).
The calmest month (with the lowest average wind speed) is November (10.1km/h).
Average humidity
Niiza, Japan
The months with the highest relative humidity are June and July (74%).
The month with the lowest relative humidity is January (58%).
Average rainfall
Niiza, Japan
The wettest month (with the highest rainfall) is October (121mm).
The driest months (with the least rainfall) are February and December (34mm).
Average rainfall days
Niiza, Japan
- Average rainfall days in January:
6.6 days - Average rainfall days in February:
8.4 days - Average rainfall days in March:
14.5 days - Average rainfall days in April:
15.1 days - Average rainfall days in May:
14.3 days - Average rainfall days in June:
18.5 days
- Average rainfall days in July:
18.7 days - Average rainfall days in August:
16.5 days - Average rainfall days in September:
15.5 days - Average rainfall days in October:
14.9 days - Average rainfall days in November:
10.6 days - Average rainfall days in December:
8.3 days
The month with the highest number of rainy days is July (18.7 days).
The month with the least rainy days is January (6.6 days).
Average snowfall
Niiza, 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
Niiza, Japan
- Average snowfall days in January:
1.7 days - Average snowfall days in February:
2.5 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 (2.5 days).
The months with the least snowfall days are April, May, June, July, August, September, October and December (0 days).
Average daylight / Average sunshine
Niiza, 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 0min - Average sunshine in March:
7h and 0min - Average sunshine in April:
9h and 6min - Average sunshine in May:
9h and 30min - Average sunshine in June:
8h and 48min
- Average sunshine in July:
9h and 18min - Average sunshine in August:
10h and 6min - Average sunshine in September:
7h and 54min - Average sunshine in October:
6h and 42min - Average sunshine in November:
6h and 6min - Average sunshine in December:
6h and 24min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 6h and 0min).
Average sunshine days
Niiza, Japan
- Average sunshine days in January:
21.3 days - Average sunshine days in February:
16.9 days - Average sunshine days in March:
14.2 days - Average sunshine days in April:
12.4 days - Average sunshine days in May:
14.8 days - Average sunshine days in June:
9.1 days
- Average sunshine days in July:
9.4 days - Average sunshine days in August:
11.9 days - Average sunshine days in September:
11.3 days - Average sunshine days in October:
14.3 days - Average sunshine days in November:
17.5 days - Average sunshine days in December:
20.8 days
The month with the most sunshine days is January (21.3 days).
The month with the least sunshine days is June (9.1 days).
Average UV index
Niiza, Japan
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January and February (UV index 2).
Average cloud cover
Niiza, 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 26).
Average visibility
Niiza, Japan
The months with the highest visibility are January, February, March, May, August, October, November and December (10km).
The months with the lowest visibility are April, June, July and September (9km).
