July Weather in Niihama, Japan

Last updated: August 23, 2025

In Niihama, Japan, the average temperature in July is a warm 26°C (79°F), with minimums dipping to 20°C (68°F) and maximums soaring to 32°C (91°F). This month also sees an average precipitation of 357 mm (14.1 in) over 19 days, contributing to a high humidity level of 91%. Prepare for a tropical experience!

July Temperature in Niihama

In July in Niihama, the average temperature is 26°C (79°F). Maximums can reach 32°C (91°F), and minimums can be as low as 20°C (68°F). This pleasant climate makes it an ideal destination for travelers seeking warm weather adventures.

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

The chart illustrates July temperature patterns in Niihama, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Niihama, July typically has an average temperature of 26°C (79°F), with highs reaching up to 32°C (91°F) and lows dropping to around 20°C (68°F).

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

July Precipitation in Niihama

In Niihama in July, the total precipitation amount is 357 mm (14.1 in) over a span of 19 days.

July Precipitation Trends in Niihama

The chart displays monthly precipitation patterns in Niihama, 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 Niihama, July typically receives around 357 mm (14.1 inches) of precipitation spread over approximately 19 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

July Humidity in Niihama

In Niihama in July, humidity is 91%. With an average temperature of 26°C (79°F), this humidity feels like navigating through an invisible blanket, making even short strolls feel laborious and leaving a sticky sheen on your skin, which can be overwhelming for travelers.

July Average Humidity in Niihama

This chart illustrates the average monthly humidity levels in Niihama, 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 Niihama is approximately 91%, 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 Niihama

In Niihama 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 Niihama.

Maximum UV Index Levels in Niihama for July

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

Data source: Niihama 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 Niihama Compares to Other Months

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

This table compares monthly weather conditions in Niihama, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	5°C (42°F)	65 mm (2.6 inches)	74%	moderate
February Weather	6°C (43°F)	85 mm (3.4 inches)	70%	high
March Weather	9°C (49°F)	129 mm (5.1 inches)	70%	very high
April Weather	13°C (57°F)	142 mm (5.6 inches)	76%	very high
May Weather	18°C (65°F)	148 mm (5.8 inches)	82%	extreme
June Weather	22°C (71°F)	199 mm (7.8 inches)	86%	extreme
July Weather	26°C (79°F)	357 mm (14.1 inches)	91%	extreme
August Weather	27°C (82°F)	181 mm (7.1 inches)	88%	extreme
September Weather	24°C (75°F)	237 mm (9.3 inches)	85%	very high
October Weather	19°C (66°F)	253 mm (10.0 inches)	82%	high
November Weather	13°C (56°F)	69 mm (2.7 inches)	79%	high
December Weather	8°C (46°F)	80 mm (3.1 inches)	77%	moderate