July weather forecast
Nagoya, Japan

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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. Massive downpours are common, but the city often enjoys brief moments of sunshine in between. While rainfall remains high, evening temperatures drop slightly, offering a respite from the heat.

Temperature

As Nagoya enters July, the average high-temperature marginally increases from the a moderately hot 27.2°C (81°F) of June to a tropical 30.8°C (87.4°F). During July, Nagoya consistently records a temperature low averaging a warm 23°C (73.4°F).

Heat index

The heat index value during July is calculated to be a sweltering 38°C (100.4°F). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.
Factoring in the heat index, values are geared towards shaded areas with light breezes. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', joins air temperature with relative humidity to produce a temperature perception for humans. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

With an average relative humidity of 74%, July is the most humid month.

Rainfall

In July, the rain falls for 13 days. Throughout July, 204mm (8.03") of precipitation is accumulated. Throughout the year, in Nagoya, Japan, there are 116.3 rainfall days, and 1535mm (60.43") of precipitation is accumulated.

Snowfall

In Nagoya, snow does not fall in March through November.

Sea temperature

In Nagoya, in July, the average water temperature is 26°C (78.8°F).
Note: For activities in the water such as swimming or diving, temperatures from 25°C (77°F) to 29°C (84.2°F) are considered optimal for prolonged enjoyment without discomfort.

Daylight

The average length of the day in July in Nagoya is 14h and 16min.
On the first day of July, sunrise is at 04:41 and sunset at 19:10. On the last day of the month, sunrise is at 05:00 and sunset at 18:56 JST.

Sunshine

In Nagoya, Japan, the average sunshine in July is 5.3h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 10. A UV Index value of 8 to 10 symbolizes a very high health hazard from exposure to the Sun's UV rays for the average person.
Note: An average maximum UV index of 10 in July leads to these recommendations:
Take the necessary steps to protect yourself; unprotected skin and eyes are vulnerable to damage. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. After a swim or outdoor exercise, one should liberally reapply broad-spectrum sunscreen with a sun protection factor of 30 or higher. Caution! Sand and water reflections can notably increase the UV radiation intensity.

Frequently asked questions

How hot is it in Nagoya in July?

In Nagoya, 30.8°C (87.4°F) is the average high-temperature and 23°C (73.4°F) is the average low-temperature during July. The average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in July is calculated to be 38°C (100.4°F).

What is the most humid month in Nagoya?

The most humid month in Nagoya, Japan, is July, with an average relative humidity of 74%.

What is the average humidity in July in Nagoya?

In July, the average relative humidity is 74%.

How much does it rain in Nagoya in July?

In July, in Nagoya, Japan, the rain falls for 13 days. Throughout July, 204mm (8.03") of precipitation is accumulated.

When it does not snow in Nagoya?

March through November are months without snowfall.

What is the water temperature in July in Nagoya?

In July, the average sea temperature in Nagoya is 26°C (78.8°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

What is the average length of the day in July in Nagoya?

In Nagoya, the average day length in July is 14h and 16min.

When is the sunrise / sunset in July in Nagoya?

In July, on the first day of the month, sunrise is at 04:41 and sunset at 19:10. On the last day of the month, in Nagoya, sunrise is at 05:00 and sunset at 18:56 JST.

How long on average sun shines in July in Nagoya?

The average sunshine duration in July in Nagoya, Japan, is 5.3h.

What is the month with the highest UV index in Nagoya?

The months with the highest UV index in Nagoya, Japan, are June through August, with an average maximum UV index of 10.

What is the UV index reading in July in Nagoya?

In July, the average daily maximum UV index is 10. A UV Index value of 8 to 10 symbolizes a very high health vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average UV index

Average temperature in July
Nagoya, Japan

Average temperature in July - Nagoya, Japan
  • Average high temperature in July: 30.8°C

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).

  • Average low temperature in July: 23°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 in July
Nagoya, Japan

Average humidity in July - Nagoya, Japan
  • Average humidity in July: 74%

The month with the highest relative humidity is July (74%).
The month with the lowest relative humidity is March (59%).

Average rainfall in July
Nagoya, Japan

Average rainfall in July - Nagoya, Japan
  • Average rainfall in July: 203.6mm

The wettest month (with the highest rainfall) is September (234.4mm).
The driest month (with the least rainfall) is December (45mm).

Average rainfall days in July
Nagoya, Japan

Average rainfall days in July - Nagoya, Japan
  • Average rainfall days in July: 13 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 in July
Nagoya, Japan

Average snowfall in July - Nagoya, Japan
  • Average snowfall in July: 0mm

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 in July
Nagoya, Japan

Average snowfall days in July - Nagoya, Japan
  • Average snowfall days in July: 0 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 in July
Nagoya, Japan

Average sea temperature in July - Nagoya, Japan
  • Average sea temperature in July: 26°C

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 in July /
Average sunshine in July
Nagoya, Japan

Average daylight in July / Average sunshine in July - Nagoya, Japan
  • Average daylight in July: 14h and 2min

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 July: 5h and 2min

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 in July
Nagoya, Japan

Average UV index in July - Nagoya, Japan
  • Average UV index in July: 10

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).

Nagoya, Japan

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