September Weather in Honmachi, Japan

Last updated: August 23, 2025

In Honmachi, Japan, the average temperature in September is a pleasant 25°C (78°F). Temperatures can vary, with a minimum of 17°C (63°F) and a scorching maximum of 34°C (93°F). Be prepared for some rain, as the region sees 198 mm (7.8 in) of precipitation spread over 15 days. With an average humidity of 84%, it's advisable to stay cool and hydrated during your visit!

September Temperature in Honmachi

In September in Honmachi, the average temperature is 25°C (78°F). Maximums can reach 34°C (93°F), and minimums can be as low as 17°C (63°F). This pleasant climate makes Honmachi an ideal destination for travelers seeking warm weather and outdoor activities.

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

The chart illustrates September temperature patterns in Honmachi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Honmachi, September typically has an average temperature of 25°C (78°F), with highs reaching up to 34°C (93°F) and lows dropping to around 17°C (63°F).

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

September Precipitation in Honmachi

In Honmachi in September, the total precipitation amount is 198 mm (7.8 in) over a span of 15 days.

September Precipitation Trends in Honmachi

The chart displays monthly precipitation patterns in Honmachi, 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 Honmachi, September typically receives around 198 mm (7.8 inches) of precipitation spread over approximately 15 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 Honmachi

In Honmachi in September, humidity is 84%. With an average temperature of 25°C (78°F), this humidity feels like a warm, muggy embrace that can be quite stifling for traveling, making you crave cool breezes and plenty of hydration as you explore.

September Average Humidity in Honmachi

This chart illustrates the average monthly humidity levels in Honmachi, 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 Honmachi is approximately 84%, 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 Honmachi

In Honmachi in September, 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 Honmachi.

Maximum UV Index Levels in Honmachi for September

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

Data source: Honmachi 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 Honmachi Compares to Other Months

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

This table compares monthly weather conditions in Honmachi, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	7°C (46°F)	60 mm (2.4 inches)	75%	moderate
February Weather	8°C (47°F)	98 mm (3.9 inches)	71%	high
March Weather	13°C (55°F)	140 mm (5.5 inches)	71%	very high
April Weather	17°C (62°F)	135 mm (5.3 inches)	78%	extreme
May Weather	21°C (70°F)	213 mm (8.4 inches)	84%	extreme
June Weather	24°C (75°F)	307 mm (12.1 inches)	86%	extreme
July Weather	27°C (81°F)	427 mm (16.8 inches)	92%	extreme
August Weather	29°C (84°F)	246 mm (9.7 inches)	91%	extreme
September Weather	25°C (78°F)	198 mm (7.8 inches)	84%	extreme
October Weather	21°C (69°F)	124 mm (4.9 inches)	83%	very high
November Weather	15°C (58°F)	85 mm (3.3 inches)	81%	high
December Weather	9°C (48°F)	86 mm (3.4 inches)	79%	moderate