Weather in September
The perfect water temperature of 25.3°C (77.5°F) makes September a great period for swimming and other water activities in Ichikawa, Japan.
Note: Swimming, diving, and other water endeavors at temperatures between 25°C (77°F) and 29°C (84.2°F) are considered enjoyable and satisfying for extended periods without discomfort.
On the first day of September, sunrise is at 05:12 and sunset at 18:08. On the last day of the month, sunrise is at 05:34 and sunset at 17:25 JST.
Sea temperature
In Ichikawa, the average seawater temperature in September is 25.3°C (77.5°F).Note: Swimming, diving, and other water endeavors at temperatures between 25°C (77°F) and 29°C (84.2°F) are considered enjoyable and satisfying for extended periods without discomfort.
Daylight
In Ichikawa, Japan, the average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 05:12 and sunset at 18:08. On the last day of the month, sunrise is at 05:34 and sunset at 17:25 JST.
Updated: Jan 31, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How warm is the water in September in Ichikawa?
In Ichikawa, the average seawater temperature in September is 25.3°C (77.5°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.
How many hours of daylight does Ichikawa have in September?
In September, the average day length in Ichikawa, Japan, is 12h and 25min.
What time are sunrise and sunset in September in Ichikawa?
On the first day of September in Ichikawa, sunrise is at 05:12 and sunset at 18:08. On the last day of the month, sunrise is at 05:34 and sunset at 17:25 JST.
Average sea temperature in September
Ichikawa, Japan
- Average sea temperature in September: 25.3°C
The best month for swimming (with the highest average sea temperature) is August (25.7°C).
The coldest month (with the lowest average sea temperature) is February (14°C).
Average daylight in September
Ichikawa, Japan
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
Ichikawa, Japan
Weather forecast for your location
1. Click Locate me button
2. Allow the app to use your location
2. Allow the app to use your location