nomadseason

September Weather in Chigasaki, Japan

Last updated: August 23, 2025

In September, the average temperature in Chigasaki, Japan hovers around 24°C (75°F). Expect minimums dipping to 18°C (65°F) and maximums soaring to 29°C (84°F). With 208 mm (8.2 in) of precipitation spread over 17 days, be prepared for some wet weather. Humidity levels are notably high at 86%, adding to the tropical feel of the season.

September Temperature in Chigasaki

In September in Chigasaki, the average temperature is 24°C (75°F). Maximums can reach 29°C (84°F) and minimums can be as low as 18°C (65°F). This pleasant weather makes it an ideal time for travel and outdoor activities.

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

The chart illustrates September temperature patterns in Chigasaki, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Chigasaki, September typically has an average temperature of 24°C (75°F), with highs reaching up to 29°C (84°F) and lows dropping to around 18°C (65°F).
JanFebMarAprMayJunJulAugSepOctNovDec464752576570768075676051
Data source: Temperature data for Chigasaki generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Chigasaki

In Chigasaki in September, the precipitation amount is 208 mm (8.2 in) over the course of 17 days.

September Precipitation Trends in Chigasaki

The chart displays monthly precipitation patterns in Chigasaki, 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 Chigasaki, September typically receives around 208 mm (8.2 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec646217214114819722612920830311182
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Chigasaki

In Chigasaki 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 Chigasaki

This chart illustrates the average monthly humidity levels in Chigasaki, 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 Chigasaki is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%74%70%74%82%88%93%90%86%83%80%78%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Chigasaki

In Chigasaki 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 Chigasaki.

Maximum UV Index Levels in Chigasaki for September

The chart shows the monthly maximum UV Index (UVI) for Chigasaki 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 Chigasaki typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec458101111111110754
Data source: Chigasaki 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 Chigasaki Compares to Other Months

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

This table compares monthly weather conditions in Chigasaki, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (47°F)64 mm (2.5 inches)76%moderate
February Weather8°C (47°F)62 mm (2.4 inches)74%moderate
March Weather11°C (52°F)172 mm (6.8 inches)70%very high
April Weather14°C (58°F)141 mm (5.5 inches)74%very high
May Weather18°C (65°F)148 mm (5.8 inches)81%extreme
June Weather21°C (70°F)197 mm (7.8 inches)88%extreme
July Weather25°C (77°F)226 mm (8.9 inches)93%extreme
August Weather27°C (80°F)129 mm (5.1 inches)90%extreme
September Weather24°C (75°F)208 mm (8.2 inches)86%very high
October Weather20°C (68°F)303 mm (11.9 inches)83%high
November Weather15°C (60°F)111 mm (4.4 inches)80%moderate
December Weather11°C (52°F)82 mm (3.2 inches)78%moderate

Compare Chigasaki's Climate with Cities Worldwide