July Weather in Hachijo, Japan

Last updated: August 23, 2025

In Hachijo, Japan, the average temperature in July hovers around 26°C (80°F), with a minimum of 23°C (74°F) and a maximum reaching 30°C (86°F). Prepare for a bit of rain, as the region sees around 170 mm (6.7 in) of precipitation over approximately 12 days. Expect high humidity, averaging a sticky 92%.

July Temperature in Hachijo

In July in Hachijo, the average temperature is 26°C (80°F). Maximums can reach 30°C (86°F), while minimums can drop to as low as 23°C (74°F). This mild climate makes Hachijo an ideal destination for travelers seeking comfortable weather.

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

The chart illustrates July temperature patterns in Hachijo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hachijo, July typically has an average temperature of 26°C (80°F), with highs reaching up to 30°C (86°F) and lows dropping to around 23°C (74°F).

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

July Precipitation in Hachijo

In Hachijo in July, the precipitation amount is 170 mm (6.7 in) spread over 12 days.

July Precipitation Trends in Hachijo

The chart displays monthly precipitation patterns in Hachijo, 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 Hachijo, July typically receives around 170 mm (6.7 inches) of precipitation spread over approximately 12 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 Hachijo

In Hachijo in July humidity is 92%. With an average temperature of 26°C (80°F), this humidity feels like a thick blanket enveloping you, making travel challenging as you find yourself sweating even during the mildest activities.

July Average Humidity in Hachijo

This chart illustrates the average monthly humidity levels in Hachijo, 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 Hachijo 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 Hachijo

In Hachijo in July, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Hachijo.

Maximum UV Index Levels in Hachijo for July

The chart shows the monthly maximum UV Index (UVI) for Hachijo 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 Hachijo typically reaches 12, which falls under the extreme exposure category.

Data source: Hachijo 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 Hachijo Compares to Other Months

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

This table compares monthly weather conditions in Hachijo, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	13°C (56°F)	130 mm (5.1 inches)	69%	moderate
February Weather	13°C (56°F)	114 mm (4.5 inches)	68%	high
March Weather	15°C (60°F)	201 mm (7.9 inches)	69%	very high
April Weather	18°C (64°F)	133 mm (5.2 inches)	75%	extreme
May Weather	21°C (70°F)	184 mm (7.3 inches)	82%	extreme
June Weather	23°C (74°F)	338 mm (13.3 inches)	88%	extreme
July Weather	26°C (80°F)	170 mm (6.7 inches)	92%	extreme
August Weather	28°C (82°F)	83 mm (3.3 inches)	85%	extreme
September Weather	27°C (80°F)	311 mm (12.3 inches)	82%	very high
October Weather	24°C (75°F)	334 mm (13.1 inches)	78%	high
November Weather	20°C (68°F)	154 mm (6.1 inches)	74%	high
December Weather	16°C (61°F)	133 mm (5.2 inches)	72%	moderate