Climate and monthly weather forecastIzumi, Japan
Climate and monthly weather forecast
The best time to visit Izumi
The best months for a swim in Izumi, Japan, are July through September, with a perfect temperature - varying between 25°C (77°F) and 29°C (84.2°F), and scarce rainfall.Weather in January
In Izumi, Japan, the average seawater temperature in January is 16.3°C (61.3°F). Note: In water with a temperature of 16.3°C (61.3°F), most people do not enjoy swimming. Weather in January »Weather in February
February is the month with the coldest seawater in Izumi, Japan, with an average sea temperature of 15.6°C (60.1°F). Note: In water of 15.6°C (60.1°F), the majority of people do not enjoy swimming. Weather in February »Weather in March
In March, the average sea temperature in Izumi, Japan, is 15.8°C (60.4°F). Note: For most individuals, swimming in 15.8°C (60.4°F) is not a pleasant experience. Weather in March »Weather in April
In Izumi, Japan, the average seawater temperature in April is 17.1°C (62.8°F). Note: Most people do not take pleasure in swimming in water at 17.1°C (62.8°F). Weather in April »Weather in May
In Izumi, Japan, the average seawater temperature in May is 19.8°C (67.6°F). Note: For most individuals, swimming in 19.8°C (67.6°F) is not enjoyable. Weather in May »Weather in June
In June, the average sea temperature in Izumi, Japan, is 23.5°C (74.3°F). Note: If cold is not your friend, swimming at 23.5°C (74.3°F) might be daunting. Weather in June »Weather in July
An excellent water temperature of 26.4°C (79.5°F) makes July in Izumi, Japan, a prime for swimming and other water activities. In Izumi, the average seawater temperature in July is 26.4°C (79.5°F). Note: Engaging in swimming, diving, or other water activities is highly enjoyable in temperatures ranging from 25°C (77°F) to 29°C (84.2°F), without any unpleasant sensations for prolonged durations. Weather in July »Weather in August
The ideal sea water temperature of 27.7°C (81.9°F) makes August in Izumi, Japan, the best time for swimming and other water activities. August is the month with the warmest seawater, with an average sea temperature of 27.7°C (81.9°F). Note: For any water activity, the surface water temperatures in the range of 25°C (77°F) to 29°C (84.2°F) are deemed excellent and incredibly pleasant for longer durations. Weather in August »Weather in September
An excellent water temperature of 26.7°C (80.1°F) makes September in Izumi, Japan, a prime for swimming and other water activities. In Izumi, Japan, the average seawater temperature in September is 26.7°C (80.1°F). Note: Engaging in water activities, such as swimming or diving, in temperatures from 25°C (77°F) to 29°C (84.2°F) is very pleasurable for extended periods, without any discomfort. Weather in September »Weather in October
In October, the average sea temperature in Izumi, Japan, is 24.3°C (75.7°F). Note: Individual preferences to cold, influenced by conditions such as sunshine, wind, and surrounding temperature, play a part in the comfort of swimming in 24.3°C (75.7°F) waters. Weather in October »Weather in November
In November, the average sea temperature in Izumi, Japan, is 21.9°C (71.4°F). Note: Most people do not take pleasure in swimming in water at 21.9°C (71.4°F). Weather in November »Weather in December
In Izumi, Japan, the average seawater temperature in December is 19.1°C (66.4°F). Note: Swimming in 19.1°C (66.4°F) is not a pleasurable activity for the majority of people. Weather in December »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
With an average sea temperature of 15.6°C (60.1°F), February is the month with the coldest seawater in Izumi.
June has the longest days of the year, with an average of 14h and 24min of daylight.
August is the month with the warmest seawater, with an average sea temperature of 27.7°C (81.9°F).
With an average of 9h and 54min of daylight, December has the shortest days of the year in Izumi.
Izumi does not observe Daylight Saving Time (DST). JST timezone is used throughout the entire year.
Average sea temperature
Izumi, Japan
The best month for swimming (with the highest average sea temperature) is August (27.7°C).
The coldest month (with the lowest average sea temperature) is February (15.6°C).
Average daylight
Izumi, Japan
- Average daylight in January:
10h and 6min - Average daylight in February:
10h and 54min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 6min - Average daylight in May:
14h and 0min - Average daylight in June:
14h and 24min
- Average daylight in July:
14h and 12min - Average daylight in August:
13h and 24min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 18min - Average daylight in November:
10h and 24min - Average daylight in December:
9h and 54min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
