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September Weather in Nagawa, Japan

Last updated: August 23, 2025

In Nagawa, Japan, the average temperature in September hovers around 19°C (67°F). Expect a range from a cool 7°C (45°F) to a warm 31°C (88°F). Be prepared for some rain, with a total precipitation of 144 mm (5.7 in) spread over about 15 days. With an average humidity of 89%, it's a perfect time to embrace the lush, vibrant atmosphere!

September Temperature in Nagawa

In September in Nagawa, the average temperature is 19°C (67°F). Maximum temperatures can reach 31°C (88°F), while minimums can drop as low as 7°C (45°F). This makes Nagawa an ideal destination for travelers looking to enjoy mild weather with the possibility of warm afternoons and cool evenings.

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

The chart illustrates September temperature patterns in Nagawa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Nagawa, September typically has an average temperature of 19°C (67°F), with highs reaching up to 31°C (88°F) and lows dropping to around 7°C (45°F).
JanFebMarAprMayJunJulAugSepOctNovDec313341496066727567564536
Data source: Temperature data for Nagawa generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Nagawa

In Nagawa in September, the precipitation amount is 144 mm (5.7 in) during a span of 15 days.

September Precipitation Trends in Nagawa

The chart displays monthly precipitation patterns in Nagawa, 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 Nagawa, September typically receives around 144 mm (5.7 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec56611101111201212291211442124562
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Nagawa

In Nagawa in September, humidity is 89%. With an average temperature of 19°C (67°F), this humidity feels like a warm, muggy blanket enveloping you, making outdoor activities uncomfortable and encouraging travelers to seek shaded areas or indoor attractions during the hottest parts of the day.

September Average Humidity in Nagawa

This chart illustrates the average monthly humidity levels in Nagawa, 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 Nagawa is approximately 89%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%81%79%81%88%92%92%89%87%85%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Nagawa

In Nagawa in September, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Nagawa.

Maximum UV Index Levels in Nagawa for September

The chart shows the monthly maximum UV Index (UVI) for Nagawa 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 Nagawa typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46891111111110753
Data source: Nagawa 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 Nagawa Compares to Other Months

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

This table compares monthly weather conditions in Nagawa, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)56 mm (2.2 inches)88%moderate
February Weather1°C (33°F)61 mm (2.4 inches)86%high
March Weather5°C (41°F)110 mm (4.3 inches)81%very high
April Weather9°C (49°F)111 mm (4.4 inches)78%very high
May Weather15°C (60°F)120 mm (4.7 inches)81%extreme
June Weather19°C (66°F)121 mm (4.8 inches)88%extreme
July Weather22°C (73°F)229 mm (9.0 inches)92%extreme
August Weather24°C (75°F)121 mm (4.7 inches)92%extreme
September Weather19°C (67°F)144 mm (5.7 inches)89%very high
October Weather13°C (56°F)212 mm (8.4 inches)87%high
November Weather7°C (45°F)45 mm (1.8 inches)85%moderate
December Weather2°C (36°F)62 mm (2.4 inches)86%moderate

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