July Weather in Koga, Japan

Last updated: August 23, 2025

In July, the average temperature in Koga, Japan hovers around 26°C (78°F), with a minimum of 17°C (63°F) and a maximum reaching 36°C (97°F). Expect high humidity levels at 92% and prepare for frequent showers, as the area receives approximately 258 mm (10.2 in) of precipitation over 21 days.

July Temperature in Koga

In July in Koga, the average temperature is 26°C (78°F). Maximum temperatures can reach 36°C (97°F), while minimum temperatures can drop to as low as 17°C (63°F). This makes Koga an ideal destination for travelers looking to enjoy warm weather and outdoor activities.

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

The chart illustrates July temperature patterns in Koga, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Koga, July typically has an average temperature of 26°C (78°F), with highs reaching up to 36°C (97°F) and lows dropping to around 17°C (63°F).

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

July Precipitation in Koga

In Koga in July, the total precipitation amount is 258 mm (10.2 in) over a span of 21 days.

July Precipitation Trends in Koga

The chart displays monthly precipitation patterns in Koga, 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 Koga, July typically receives around 258 mm (10.2 inches) of precipitation spread over approximately 21 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 Koga

In Koga in July, humidity is 92%. With an average temperature of 26°C (78°F), this humidity feels like walking through a warm, damp blanket, making outdoor activities challenging and requiring frequent breaks to hydrate and cool down.

July Average Humidity in Koga

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

In Koga 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 Koga.

Maximum UV Index Levels in Koga for July

The chart shows the monthly maximum UV Index (UVI) for Koga 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 Koga typically reaches 11, which falls under the extreme exposure category.

Data source: Koga 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 Koga Compares to Other Months

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

This table compares monthly weather conditions in Koga, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	4°C (39°F)	38 mm (1.5 inches)	88%	moderate
February Weather	5°C (41°F)	41 mm (1.6 inches)	86%	moderate
March Weather	9°C (49°F)	131 mm (5.2 inches)	81%	high
April Weather	14°C (57°F)	129 mm (5.1 inches)	78%	very high
May Weather	19°C (66°F)	137 mm (5.4 inches)	81%	very high
June Weather	22°C (72°F)	160 mm (6.3 inches)	88%	extreme
July Weather	26°C (78°F)	258 mm (10.2 inches)	92%	extreme
August Weather	27°C (82°F)	156 mm (6.1 inches)	92%	very high
September Weather	23°C (74°F)	195 mm (7.7 inches)	89%	very high
October Weather	18°C (64°F)	258 mm (10.1 inches)	87%	high
November Weather	12°C (53°F)	67 mm (2.6 inches)	85%	moderate
December Weather	6°C (43°F)	50 mm (2.0 inches)	86%	moderate