September Weather in Nagata, Japan

Last updated: August 23, 2025

In September, the average temperature in Nagata, Japan is a warm 26°C (80°F). You can expect temperatures to range from a minimum of 21°C (71°F) to a maximum of 29°C (85°F). However, be prepared for significant rainfall, as 271 mm (10.7 in) of precipitation can occur over 20 days, accompanied by an average humidity of 80%.

September Temperature in Nagata

In September in Nagata, the average temperature is 26°C (80°F), with maximums reaching 29°C (85°F) and minimums dropping to as low as 21°C (71°F). This pleasant climate makes Nagata an ideal destination for travelers looking to enjoy moderate temperatures and comfortable outdoor activities.

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

The chart illustrates September temperature patterns in Nagata, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Nagata, September typically has an average temperature of 26°C (80°F), with highs reaching up to 29°C (85°F) and lows dropping to around 21°C (71°F).

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

September Precipitation in Nagata

In Nagata in September, the precipitation amount is 271 mm (10.7 in) over the course of 20 days.

September Precipitation Trends in Nagata

The chart displays monthly precipitation patterns in Nagata, 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 Nagata, September typically receives around 271 mm (10.7 inches) of precipitation spread over approximately 20 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 Nagata

In Nagata in September humidity is 80%. With an average temperature of 26°C (80°F), this humidity feels like a warm, enveloping blanket, making it quite uncomfortable for traveling. The thick, heavy air can leave you feeling sticky and fatigued, making outdoor activities more challenging and necessitating frequent breaks for hydration and cooling down.

September Average Humidity in Nagata

This chart illustrates the average monthly humidity levels in Nagata, 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 Nagata is approximately 80%, 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 Nagata

In Nagata 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 Nagata.

Maximum UV Index Levels in Nagata for September

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

Data source: Nagata 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 Nagata Compares to Other Months

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

This table compares monthly weather conditions in Nagata, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	13°C (56°F)	107 mm (4.2 inches)	72%	moderate
February Weather	13°C (56°F)	158 mm (6.2 inches)	68%	high
March Weather	16°C (61°F)	207 mm (8.1 inches)	72%	very high
April Weather	18°C (65°F)	179 mm (7.0 inches)	79%	extreme
May Weather	21°C (71°F)	254 mm (10.0 inches)	83%	extreme
June Weather	24°C (75°F)	484 mm (19.1 inches)	86%	extreme
July Weather	27°C (81°F)	279 mm (11.0 inches)	90%	extreme
August Weather	28°C (82°F)	208 mm (8.2 inches)	85%	extreme
September Weather	26°C (80°F)	271 mm (10.7 inches)	80%	extreme
October Weather	23°C (74°F)	159 mm (6.3 inches)	78%	very high
November Weather	19°C (67°F)	150 mm (5.9 inches)	76%	high
December Weather	15°C (59°F)	134 mm (5.3 inches)	74%	moderate