July Weather in Nagaoka, Japan

Last updated: August 23, 2025

In July, the average temperature in Nagaoka, Japan is a warm 26°C (79°F). Expect temperatures to range from a comfortable 19°C (66°F) to a scorching 40°C (105°F). During this month, precipitation typically totals 283 mm (11.2 in) spread over 18 days, contributing to an average humidity of 92%. Stay prepared for a tropical climate!

July Temperature in Nagaoka

In July in Nagaoka, the average temperature is 26°C (79°F). The maximum can reach 40°C (105°F), and the minimum can be as low as 19°C (66°F). Be sure to pack light, breathable clothing and stay hydrated while enjoying the warm weather.

July Weather in Nagaoka: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in Nagaoka, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Nagaoka, July typically has an average temperature of 26°C (79°F), with highs reaching up to 40°C (105°F) and lows dropping to around 19°C (66°F).

Data source: Temperature data for Nagaoka generated using information from the Copernicus Climate Change Service.

July Precipitation in Nagaoka

In Nagaoka in July, the precipitation amount is 283 mm (11.2 in) over the course of 18 days.

July Precipitation Trends in Nagaoka

The chart displays monthly precipitation patterns in Nagaoka, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In Nagaoka, July typically receives around 283 mm (11.2 inches) of precipitation spread over approximately 18 days.

Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

July Humidity in Nagaoka

In Nagaoka in July humidity is 92%. With an average temperature of 26°C (79°F), this humidity feels like an oppressive blanket wrapping around you, making outdoor activities a challenge and leaving you longing for shade and cool beverages.

July Average Humidity in Nagaoka

This chart illustrates the average monthly humidity levels in Nagaoka, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in Nagaoka is approximately 92%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in Nagaoka

In Nagaoka in July, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Nagaoka.

Maximum UV Index Levels in Nagaoka for July

The chart shows the monthly maximum UV Index (UVI) for Nagaoka in July, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In July, the maximum UV index in Nagaoka typically reaches 11, which falls under the extreme exposure category.

Data source: Nagaoka July UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How July Weather in Nagaoka Compares to Other Months

Weather in Nagaoka varies notably across the year, with each month offering distinct climate conditions. This page compares July’s weather to other months in Nagaoka, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Nagaoka, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	2°C (37°F)	165 mm (6.5 inches)	88%	moderate
February Weather	3°C (38°F)	138 mm (5.4 inches)	86%	moderate
March Weather	7°C (45°F)	130 mm (5.1 inches)	81%	high
April Weather	12°C (53°F)	114 mm (4.5 inches)	78%	very high
May Weather	18°C (64°F)	110 mm (4.3 inches)	81%	very high
June Weather	21°C (71°F)	108 mm (4.3 inches)	88%	very high
July Weather	26°C (79°F)	283 mm (11.2 inches)	92%	extreme
August Weather	27°C (82°F)	186 mm (7.3 inches)	92%	extreme
September Weather	23°C (73°F)	151 mm (5.9 inches)	89%	very high
October Weather	17°C (63°F)	158 mm (6.2 inches)	87%	high
November Weather	11°C (52°F)	139 mm (5.5 inches)	85%	moderate
December Weather	5°C (41°F)	204 mm (8.0 inches)	86%	moderate