September Weather in Ogawa, Japan

Last updated: August 23, 2025

In September, the average temperature in Ogawa, Japan reaches a comfortable 22°C (72°F). However, be prepared for variations, as temperatures can dip to a minimum of 12°C (54°F) or soar to a maximum of 35°C (95°F). Expect 226 mm (8.9 in) of precipitation spread over 22 days, and don't forget your umbrella, as the average humidity sits at a high 86%.

September Temperature in Ogawa

In September in Ogawa, the average temperature is 22°C (72°F). Maximums can reach 35°C (95°F) and minimums can be as low as 12°C (54°F). This range makes it an ideal time for travelers to enjoy outdoor activities while having the option to dress comfortably for varying temperatures.

September Weather in Ogawa: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Ogawa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ogawa, September typically has an average temperature of 22°C (72°F), with highs reaching up to 35°C (95°F) and lows dropping to around 12°C (54°F).

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

September Precipitation in Ogawa

In Ogawa in September, the precipitation amount is 226 mm (8.9 in) over the course of 22 days.

September Precipitation Trends in Ogawa

The chart displays monthly precipitation patterns in Ogawa, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Ogawa, September typically receives around 226 mm (8.9 inches) of precipitation spread over approximately 22 days.

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

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Millimeters (mm) Inches (in)

September Humidity in Ogawa

In Ogawa in September, humidity is 86%. With an average temperature of 22°C (72°F), this humidity feels like a warm blanket wrapping around you as you travel, making it essential to stay hydrated and seek shade during the sun's peak hours.

September Average Humidity in Ogawa

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

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

September UV Index in Ogawa

In Ogawa in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Ogawa.

Maximum UV Index Levels in Ogawa for September

The chart shows the monthly maximum UV Index (UVI) for Ogawa in September, 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 September, the maximum UV index in Ogawa typically reaches 9, which falls under the very high exposure category.

Data source: Ogawa September 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 September Weather in Ogawa Compares to Other Months

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

This table compares monthly weather conditions in Ogawa, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	3°C (38°F)	47 mm (1.8 inches)	76%	moderate
February Weather	4°C (40°F)	50 mm (2.0 inches)	74%	moderate
March Weather	8°C (48°F)	136 mm (5.4 inches)	70%	very high
April Weather	13°C (55°F)	130 mm (5.1 inches)	74%	very high
May Weather	18°C (65°F)	136 mm (5.4 inches)	81%	extreme
June Weather	21°C (70°F)	187 mm (7.4 inches)	88%	extreme
July Weather	25°C (77°F)	293 mm (11.5 inches)	93%	extreme
August Weather	27°C (80°F)	172 mm (6.8 inches)	90%	extreme
September Weather	22°C (72°F)	226 mm (8.9 inches)	86%	very high
October Weather	17°C (62°F)	305 mm (12.0 inches)	83%	high
November Weather	11°C (52°F)	54 mm (2.1 inches)	80%	moderate
December Weather	6°C (42°F)	46 mm (1.8 inches)	78%	moderate