Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average snowfall days in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
October
Weather in October
Temperature
October brings a slight decrease in temperature, down from a moderately hot 25.8°C (78.4°F) in September to a pleasant 22°C (71.6°F). In October, Isumi temperatures settle at a low of 19.2°C (66.6°F) during the nights, reflecting a minor change from daytime highs.Humidity
The average relative humidity in October in Isumi is 75%.Rainfall
The month with the most rainfall is October, when the rain falls for 18.5 days and typically aggregates up to 164mm (6.46") of precipitation.Snowfall
In Isumi, snow does not fall in March through December.Daylight
The average length of the day in October in Isumi is 11h and 19min.On the first day of October in Isumi, Japan, sunrise is at 05:33 and sunset at 17:22. On the last day of the month, sunrise is at 05:59 and sunset at 16:45 JST.
Sunshine
In Isumi, Japan, the average sunshine in October is 6.5h.UV index
In October, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.Note: In October, a daily maximum UV index of 5 leads to the following instructions:
Undertake precautions - It is suggested to shield oneself from sunburn. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are October temperatures in Isumi?
What is the average humidity in October in Isumi?
What is the wettest month in Isumi?
How much does it rain in Isumi in October?
When it does not snow in Isumi?
What is the average length of the day in October in Isumi?
What time are sunrise and sunset in October in Isumi?
How long on average sun shines in October in Isumi?
How high is the UV index in October in Isumi?
Average temperature in October
Isumi, Japan
- Average high temperature in October: 22°C
The warmest month (with the highest average high temperature) is August (28.3°C).
The month with the lowest average high temperature is January (10.6°C).
- Average low temperature in October: 19.2°C
The month with the highest average low temperature is August (25.6°C).
The coldest month (with the lowest average low temperature) is January (7°C).
Average pressure in October
Isumi, Japan
- Average pressure in October: 1016.1mbar
The month with the highest atmospheric pressure is November (1017.6mbar).
The month with the lowest atmospheric pressure is June (1009.1mbar).
Average wind speed in October
Isumi, Japan
- Average wind speed in October: 22.5km/h
The windiest month (with the highest average wind speed) is March (25.5km/h).
The calmest month (with the lowest average wind speed) is June (18.7km/h).
Average humidity in October
Isumi, Japan
- Average humidity in October: 75%
The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is January (63%).
Average rainfall in October
Isumi, Japan
- Average rainfall in October: 164mm
The wettest month (with the highest rainfall) is October (164mm).
The driest month (with the least rainfall) is January (58mm).
Average rainfall days in October
Isumi, Japan
- Average rainfall days in October: 18.5 days
The month with the highest number of rainy days is October (18.5 days).
The month with the least rainy days is January (9.6 days).
Average snowfall days in October
Isumi, Japan
- Average snowfall days in October: 0 days
The months with the highest number of snowfall days are January and February (0.1 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in October /
Average sunshine in October
Isumi, Japan
- Average daylight in October: 11h 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).
- Average sunshine in October: 6h and 3min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in October
Isumi, Japan
- Average sunshine days in October: 10.2 days
The month with the most sunshine days is January (19.9 days).
The month with the least sunshine days is October (10.2 days).
Average UV index in October
Isumi, Japan
- Average UV index in October: 5
The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January and February (UV index 3).
Average cloud cover in October
Isumi, Japan
- Average cloud cover in October: 46
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in October
Isumi, Japan
- Average visibility in October: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
