June Weather in Koga, Japan

Last updated: August 23, 2025

In June, the average temperature in Koga, Japan hovers around 24°C (75°F), offering a pleasant climate for visitors. Expect temperatures to range from a comfortable 16°C (62°F) on the cooler side to a warm 34°C (93°F) at the peak. However, be prepared for some rain, as 172 mm (6.8 in) of precipitation can occur over approximately 12 days. With an average humidity of 86%, the air can feel quite humid, adding to the tropical charm of this destination.

June Temperature in Koga

In June in Koga, the average temperature is 24°C (75°F), with maximums reaching 34°C (93°F) and minimums dropping as low as 16°C (62°F). This pleasant and mild climate makes Koga an ideal destination for travelers looking to enjoy comfortable weather while exploring the area.

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

The chart illustrates June 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, June typically has an average temperature of 24°C (75°F), with highs reaching up to 34°C (93°F) and lows dropping to around 16°C (62°F).

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

June Precipitation in Koga

In Koga in June, the precipitation amount reaches 172 mm (6.8 in) over the course of 12 days.

June Precipitation Trends in Koga

The chart displays monthly precipitation patterns in Koga, with values for each month alongside June’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how June’s conditions compare to those of other months. In Koga, June typically receives around 172 mm (6.8 inches) of precipitation spread over approximately 12 days.

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

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Millimeters (mm) Inches (in)

June Humidity in Koga

In Koga in June, humidity is 86%. With an average temperature of 24°C (75°F), this humidity feels like a warm, sticky embrace, making outdoor activities somewhat uncomfortable and requiring travelers to stay hydrated and take breaks in the shade.

June Average Humidity in Koga

This chart illustrates the average monthly humidity levels in Koga, with June’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In June, average humidity in Koga is approximately 86%, offering insight into how humid the weather typically is during this month.

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

June UV Index in Koga

In Koga in June, 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 June

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

Data source: Koga June 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 June 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 June’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 June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	7°C (45°F)	57 mm (2.2 inches)	75%	moderate
February Weather	8°C (46°F)	71 mm (2.8 inches)	71%	high
March Weather	12°C (53°F)	120 mm (4.7 inches)	71%	very high
April Weather	16°C (60°F)	107 mm (4.2 inches)	78%	extreme
May Weather	20°C (69°F)	131 mm (5.1 inches)	84%	extreme
June Weather	24°C (75°F)	172 mm (6.8 inches)	86%	extreme
July Weather	27°C (81°F)	300 mm (11.8 inches)	92%	extreme
August Weather	29°C (84°F)	281 mm (11.1 inches)	91%	extreme
September Weather	25°C (77°F)	216 mm (8.5 inches)	84%	extreme
October Weather	20°C (68°F)	107 mm (4.2 inches)	83%	high
November Weather	14°C (58°F)	45 mm (1.8 inches)	81%	high
December Weather	9°C (48°F)	64 mm (2.5 inches)	79%	moderate