September Weather in Funabashi, Japan

Last updated: August 23, 2025

In September, the average temperature in Funabashi, Japan hovers around 24°C (75°F). While you might enjoy the warmth, be prepared for a chill as lows can drop to 14°C (57°F). On the flip side, temperatures can soar to a steamy 34°C (93°F). With 192 mm (7.6 in) of rain spread over 16 days, an umbrella might become your best friend. Additionally, the air can feel quite humid, with an average humidity of 86%, making it feel even more tropical!

September Temperature in Funabashi

In September in Funabashi, the average temperature is 24°C (75°F). The maximum can reach 34°C (93°F), while the minimum can be as low as 14°C (57°F). This pleasant climate makes Funabashi an ideal destination for travelers looking to enjoy both warm days and cool evenings.

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

The chart illustrates September temperature patterns in Funabashi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Funabashi, September typically has an average temperature of 24°C (75°F), with highs reaching up to 34°C (93°F) and lows dropping to around 14°C (57°F).

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

September Precipitation in Funabashi

In Funabashi in September, the precipitation amount is 192 mm (7.6 in) during a span of 16 days.

September Precipitation Trends in Funabashi

The chart displays monthly precipitation patterns in Funabashi, 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 Funabashi, September typically receives around 192 mm (7.6 inches) of precipitation spread over approximately 16 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 Funabashi

In Funabashi in September, 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.

September Average Humidity in Funabashi

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

In Funabashi 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 Funabashi.

Maximum UV Index Levels in Funabashi for September

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

Data source: Funabashi 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 Funabashi Compares to Other Months

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

This table compares monthly weather conditions in Funabashi, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	5°C (41°F)	49 mm (1.9 inches)	76%	moderate
February Weather	6°C (44°F)	43 mm (1.7 inches)	74%	moderate
March Weather	10°C (51°F)	134 mm (5.3 inches)	70%	high
April Weather	14°C (58°F)	116 mm (4.6 inches)	74%	very high
May Weather	19°C (67°F)	125 mm (4.9 inches)	81%	very high
June Weather	22°C (72°F)	160 mm (6.3 inches)	88%	extreme
July Weather	26°C (79°F)	224 mm (8.8 inches)	93%	extreme
August Weather	28°C (82°F)	105 mm (4.1 inches)	90%	extreme
September Weather	24°C (75°F)	192 mm (7.6 inches)	86%	very high
October Weather	19°C (66°F)	261 mm (10.3 inches)	83%	high
November Weather	13°C (56°F)	90 mm (3.5 inches)	80%	moderate
December Weather	8°C (46°F)	64 mm (2.5 inches)	78%	moderate