Climate and monthly weather forecastNagoya, Japan
Climate and monthly weather forecast
The climate of Nagoya
Located in Southeastern Japan, Nagoya is a city that experiences a Humid subtropical climate under the Köppen climate classification; a system for classifying the world's climates into five primary types, which are represented by letters. This specific climate is categorized as Cfa, where 'C' represents a temperate climate, 'f' stands for significant precipitation in all seasons (no dry season), and 'a' symbolizes the hot summer. In this type of climate, the average temperature of the coldest month dips to freeze, but remains between -3°C (26.6°F) and 18°C (64.4°F), while the warmest month witnesses temperatures exceeding 22°C (71.6°F).Throughout the year, Nagoya undergoes varied climatic conditions, where the high temperature wanders from 9°C (48.2°F) to 32.8°C (91°F) and the low temperature oscillates between 0.8°C (33.4°F) and 24.3°C (75.7°F). While temperatures rise steadily from January and peak in August, a gradual return to cooler temperatures commences in September.
Comparatively, the city maintains a balanced level of humidity throughout the year, ranging from 59% to 74%. Months from April to November record relative humidity above 65%, while drier conditions are present during the remaining months.
Nagoya gets most of its rainfall between May and September. The rainfall spikes in July, August, and September, with September experiencing the heaviest precipitation averaging at 234mm (9.21"). The months of January to April and November to December witness considerably less rainfall.
A unique aspect of Nagoya's climate is the snowfall that it receives in the winter months of January and February. While the snowfall in these months averages to 50mm (1.97") and 80mm (3.15") respectively, November to December and March to October do not experience any snowfall.
The best time to visit Nagoya
The most suitable time to travel to Nagoya would be during the months of April to June, when the city is under the spell of the spring season and early summer. During these months, visitors can expect high temperatures ranging from 13.9°C (57°F) to 27.2°C (81°F) and lows from 4.2°C (39.6°F) to 19°C (66.2°F). These months also bring moderate rainfall, avoiding the heavy precipitation that bogs down the summer months.The worst time to visit Nagoya
The least ideal time to visit Nagoya encompasses the months from July to September, given the high temperatures and heavy rainfall. These months record the maximum temperatures of the year, from 30.8°C (87.4°F) to 32.8°C (91°F), with humidity also peaking during this period. Additionally, these months witness maximum rainfall, with September observing an annual high of 234mm (9.21").Spring weather in Nagoya
Spring emerges in Nagoya from March to May, bringing milder temperatures and lower rainfall compared to the following summer months. Months of March, April, and May feature high temperatures from 13.9°C (57°F) to 24.1°C (75.4°F) and lows ranging between 4.2°C (39.6°F) to 14.5°C (58.1°F). Rainfall gradually increases during these months from 122mm (4.8") to 157mm (6.18"), whilst retaining comparatively lower humidity levels.Summer weather in Nagoya
Summer in Nagoya spans from June to August. A marked peculiarity in Nagoya's summer climate is the heavy rainfalls coupled with high temperatures. The high temperature stays between 27.2°C (81°F) to 32.8°C (91°F), whereas the low drifts from 19°C (66.2°F) to 24.3°C (75.7°F). June stipulates the beginning of the rainy season that continues till the end of August, with rainfall scaling from 201mm (7.91") to 204mm (8.03").Autumn weather in Nagoya
Autumn in Nagoya, which extends from September to November, is characterized by falling temperatures and incremental daylight hours. During this season, the high temperatures taper from 28.6°C (83.5°F) to 17°C (62.6°F), and low temperatures decrease from 20.7°C (69.3°F) to 8.1°C (46.6°F). While September registers the highest rainfall for the year at 234mm (9.21"), a drastic fall in precipitation occurs in November with rainfall of 80mm (3.15").Winter weather in Nagoya
Winter in Nagoya lasts from December to February. During this period, Nagoya experiences its lowest temperatures with the high temperatures sliding between 9°C (48.2°F) and 11.6°C (52.9°F), and the lows deviating between 0.8°C (33.4°F) and 3.1°C (37.6°F). This season also features snowfall in January and February with average accumulations of 50mm (1.97") and 80mm (3.15") respectively. December and January present the shortest daylight hours of the year, averaging 9.8 hours and 10.1 hours correspondingly.Weather in January
January is recognized as a cold and crisp month in Nagoya. It brings the potential for snowfall, with 50mm (1.97") of snow on average, contributing to a total of 6.4 snowfall days. One may experience snow melting as fast as it lands due to alternating relatively mild daytime temperatures. Weather in January »Weather in February
February ushers in the tail end of winter. The mercury climbs slightly from the previous month's lows, but it is not a significant shift, and winter clothing remains necessary. There is an increased chance of snowfall, with totals reaching up to 80mm (3.15"). Weather in February »Weather in March
As Nagoya steps into March, spring nudges the winter chill away. The season's change brings warmer temperatures and a noticeable drop in snowfall, recording no snowfall in March. It is considerable wet, with precipitation levels hitting a higher mark. Weather in March »Weather in April
April in Nagoya signifies the arrival of spring in full bloom. Rainfall slightly increases from March, totaling 125mm (4.92"). Temperatures continue to rise, bringing a comfortable warmth during the day. April showers are common, contributing to the growth of lush cherry blossoms. Weather in April »Weather in May
May marks the onset of Nagoya's early summer with noticeably longer days and rising temperatures. Rainfall remains high at 157mm (6.18"), associated with the late spring rain. With increasing humidity, the mid-afternoon heat becomes more pronounced. Weather in May »Weather in June
June in Nagoya is warmly humid, signifying clear summer conditions. Rainfall peaks this month, with precipitation reaching 201mm (7.91"), signifying the arrival of the rainy season. The high humidity levels, combined with the warm temperatures, create a potentially uncomfortable climate to those unaccustomed to it. Weather in June »Weather in July
July sees the continuation of Nagoya's hot and humid summer, characterized by high rainfall. Daytime temperatures peak, reaching up to 30.8°C (87.4°F) on average. Despite humidity, it serves as a pleasant time for visitors to explore the city and its outskirts. Weather in July »Weather in August
The heat continues in August with the year's highest temperatures hitting Nagoya. The mercury often soars reaching up to 32.8°C (91°F) on average. It is also a humid month, though rains often provide relief from the oppressive heat. Weather in August »Weather in September
September signals the onset of autumn in Nagoya. Rainfall hits its annual peak with a total of 234mm (9.21") of rain expected. The temperatures from the peak summer months make a gradual decline. Autumn colors start to peek through the lingering greenery. Weather in September »Weather in October
October experiences a significant drop in rainfall in Nagoya, plunging to 128mm (5.04") from September's high. It is cooled down by the continuing drop in temperature, offering a more comfortable climate. The city comes alive with gorgeous autumn foliage and fall festivals. Weather in October »Weather in November
November brings a drop in temperatures as Nagoya heads into winter. The prevailing cold air results in a drop in average temperature, both during the day and at night. Despite the chill, the skies are often clear and blue. The vibrant autumn colors reach their peak, offering breathtaking views. Weather in November »Weather in December
Rounding out the year, December marks the beginning of winter in Nagoya. It observes the return of snowfall after a long break, averaging around 10mm (0.39"). The winter chill becomes more noticeable, with nighttime temperatures often plummeting to icy lows. 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 of the year in Nagoya, Japan, registering average temperatures as high as 9°C (48.2°F) and as low as 0.8°C (33.4°F).
Throughout the year, in Nagoya, there are 116.3 rainfall days, and 1535mm (60.43") of precipitation is accumulated.
Months with snowfall in Nagoya, Japan, are January, February and December.
Throughout the year, in Nagoya, there are 16.4 snowfall days, and 140mm (5.51") of snow is accumulated.
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 is February, when snow falls for 5.4 days and typically aggregates up to 80mm (3.15") of snow.
With an average sea temperature of 16°C (60.8°F), February is the month with the coldest seawater.
The least humid month in Nagoya is March, with an average relative humidity of 59%.
March through November are months without snowfall.
With an average of 6.6h of sunshine, April has the most sunshine of the year in Nagoya, Japan.
June has the longest days of the year in Nagoya, Japan, with an average of 14h and 30min of daylight.
June and September, with an average of 5h of sunshine, are months with the least sunshine in Nagoya.
June through August, with an average maximum UV index of 10, are months with the highest UV index.
The most humid month in Nagoya is July, with an average relative humidity of 74%.
August, known for its average high temperature of 32.8°C (91°F) and an average low temperature of 24.3°C (75.7°F), is the warmest month in Nagoya.
The month with the warmest seawater is August, with an average sea temperature of 28°C (82.4°F).
The month with the most rainfall in Nagoya is September, when the rain falls for 11.9 days and typically aggregates up to 234mm (9.21") of precipitation.
December is the month with the least rainfall. Rain falls for 6.9 days and accumulates 45mm (1.77") of precipitation.
December has the shortest days of the year in Nagoya, with an average of 9h and 48min of daylight.
Nagoya, Japan, does not utilize Daylight Saving Time (DST). JST timezone is used throughout the entire year.
Average temperature
Nagoya, Japan
The warmest month (with the highest average high temperature) is August (32.8°C).
The month with the lowest average high temperature is January (9°C).
The month with the highest average low temperature is August (24.3°C).
The coldest month (with the lowest average low temperature) is January (0.8°C).
Average humidity
Nagoya, Japan
The month with the highest relative humidity is July (74%).
The month with the lowest relative humidity is March (59%).
Average rainfall
Nagoya, Japan
- Average rainfall in January:
48.4mm - Average rainfall in February:
65.6mm - Average rainfall in March:
121.8mm - Average rainfall in April:
124.8mm - Average rainfall in May:
156.5mm - Average rainfall in June:
201mm
- Average rainfall in July:
203.6mm - Average rainfall in August:
126.3mm - Average rainfall in September:
234.4mm - Average rainfall in October:
128.3mm - Average rainfall in November:
79.7mm - Average rainfall in December:
45mm
The wettest month (with the highest rainfall) is September (234.4mm).
The driest month (with the least rainfall) is December (45mm).
Average rainfall days
Nagoya, Japan
- Average rainfall days in January:
6.8 days - Average rainfall days in February:
7.5 days - Average rainfall days in March:
10.2 days - Average rainfall days in April:
10.4 days - Average rainfall days in May:
11.4 days - Average rainfall days in June:
12.8 days
- Average rainfall days in July:
13 days - Average rainfall days in August:
8.7 days - Average rainfall days in September:
11.9 days - Average rainfall days in October:
9.5 days - Average rainfall days in November:
7.2 days - Average rainfall days in December:
6.9 days
The month with the highest number of rainy days is July (13 days).
The month with the least rainy days is January (6.8 days).
Average snowfall
Nagoya, Japan
The month with the highest snowfall is February (80mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days
Nagoya, Japan
- Average snowfall days in January:
6.4 days - Average snowfall days in February:
5.4 days - Average snowfall days in March:
2 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:
2.6 days
The month with the highest number of snowfall days is January (6.4 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average sea temperature
Nagoya, Japan
The best month for swimming (with the highest average sea temperature) is August (28°C).
The coldest month (with the lowest average sea temperature) is February (16°C).
Average daylight / Average sunshine
Nagoya, 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:
5h and 30min - Average sunshine in February:
6h and 6min - Average sunshine in March:
6h and 6min - Average sunshine in April:
6h and 36min - Average sunshine in May:
6h and 24min - Average sunshine in June:
5h and 0min
- Average sunshine in July:
5h and 18min - Average sunshine in August:
6h and 30min - Average sunshine in September:
5h and 0min - Average sunshine in October:
5h and 30min - Average sunshine in November:
5h and 24min - Average sunshine in December:
5h and 36min
The month with the most sunshine is April (Average sunshine: 6h and 36min).
The months with the least sunshine are June and September (Average sunshine: 5h and 0min).
Average UV index
Nagoya, Japan
The months with the highest UV index are June, July and August (UV index 10).
The months with the lowest UV index are January and December (UV index 2).
