Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average sea temperature in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
The month of January, characterized by an average high of 20.6°C (69.1°F) and a low of 18.7°C (65.7°F), is recognized as the coldest.Humidity
The months with the lowest humidity are January and December, with an average relative humidity of 76%.Rainfall
In Ishigaki, in January, during 20.8 rainfall days, 80mm (3.15") of precipitation is typically accumulated. Throughout the year, in Ishigaki, Japan, there are 228 rainfall days, and 1184mm (46.61") of precipitation is accumulated.Sea temperature
The months with the coldest seawater in Ishigaki are January and February, with an average sea temperature of 23°C (73.4°F).Note: Your comfort in 23°C (73.4°F) waters hinges on your relationship with the cold, today's sunny disposition, wind patterns, and the air's temperature. For context, Olympic swimmers are no strangers to waters of 25°C (77°F) to 28°C (82.4°F).
Daylight
The average length of the day in January in Ishigaki, Japan, is 10h and 49min.On the first day of the month, sunrise is at 07:26 and sunset at 18:06. On the last day of January, sunrise is at 07:25 and sunset at 18:27 JST.
Sunshine
In January, the average sunshine is 4.8h.UV index
January through March and December, with an average maximum UV index of 5, are months with the lowest UV index in Ishigaki. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: The daily maximum UV index of 5 in January interprets into the following advice:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Stay alert! Reflective properties of sand and water amplify the Sun's UV radiation.
Frequently asked questions
What is the coldest time of year in Ishigaki?
What are the temperatures in Ishigaki in January?
What is the least humid month in Ishigaki?
What is the average humidity in January in Ishigaki?
How much does it rain in Ishigaki in January?
What months are the sea coldest in Ishigaki?
What is the sea temperature in January in Ishigaki?
What is the average length of the day in January in Ishigaki?
What time are sunrise and sunset in January in Ishigaki?
How many hours of sunshine does Ishigaki have in January?
What is the month with the lowest UV index in Ishigaki?
How high is the UV index in January in Ishigaki?
Average temperature in January
Ishigaki, Japan
- Average high temperature in January: 20.6°C
The warmest months (with the highest average high temperature) are July and August (29.3°C).
The month with the lowest average high temperature is January (20.6°C).
- Average low temperature in January: 18.7°C
The month with the highest average low temperature is July (28.4°C).
The coldest month (with the lowest average low temperature) is January (18.7°C).
Average pressure in January
Ishigaki, Japan
- Average pressure in January: 1020.3mbar
The month with the highest atmospheric pressure is January (1020.3mbar).
The month with the lowest atmospheric pressure is August (1005.6mbar).
Average wind speed in January
Ishigaki, Japan
- Average wind speed in January: 30.8km/h
The windiest month (with the highest average wind speed) is December (32.9km/h).
The calmest month (with the lowest average wind speed) is May (20.4km/h).
Average humidity in January
Ishigaki, Japan
- Average humidity in January: 76%
The month with the highest relative humidity is June (85%).
The months with the lowest relative humidity are January and December (76%).
Average rainfall in January
Ishigaki, Japan
- Average rainfall in January: 80mm
The wettest month (with the highest rainfall) is August (217mm).
The driest month (with the least rainfall) is March (50mm).
Average rainfall days in January
Ishigaki, Japan
- Average rainfall days in January: 20.8 days
The month with the highest number of rainy days is August (22.1 days).
The month with the least rainy days is April (16.7 days).
Average sea temperature in January
Ishigaki, Japan
- Average sea temperature in January: 23°C
The best months for swimming (with the highest average sea temperature) are July, August and September (29°C).
The coldest months (with the lowest average sea temperature) are January and February (23°C).
Average daylight in January /
Average sunshine in January
Ishigaki, Japan
- Average daylight in January: 10h and 5min
The month with the longest days is June (Average daylight: 13h and 36min).
The month with the shortest days is December (Average daylight: 10h and 42min).
- Average sunshine in January: 4h and 5min
The month with the most sunshine is June (Average sunshine: 9h and 48min).
The month with the least sunshine is December (Average sunshine: 4h and 6min).
Average sunshine days in January
Ishigaki, Japan
- Average sunshine days in January: 6.7 days
The month with the most sunshine days is June (11.8 days).
The month with the least sunshine days is November (6.2 days).
Average UV index in January
Ishigaki, Japan
- Average UV index in January: 5
The months with the highest UV index are May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, February, March and December (UV index 5).
Average cloud cover in January
Ishigaki, Japan
- Average cloud cover in January: 66
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is July (Cloud cover 36).
Average visibility in January
Ishigaki, Japan
- Average visibility in January: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).
Ishigaki, Japan
Weather forecast for your location
2. Allow the app to use your location
