October weather forecastSendai, Japan
October
Weather in October
October marks a consistent reduction in Sendai's temperature as autumn permeates the city. The decrease in temperature is accompanied by an increase in the frequency of rainfall events. Majestic autumn foliage becomes the highlight of this month, providing picture-perfect frames across Sendai. The city experiences a further decrease in daylight hours, contributing to the late autumn ambience. With the temperatures varying from 12.1°C (53.8°F) to 18.5°C (65.3°F) and the equal highest precipitation of 111mm (4.37") along with July, October is a month of variable weather conditions.Temperature
The commencement of October indicates a shift in the average high-temperature, receding from September's warm 23.9°C (75°F) to a comfortable 18.5°C (65.3°F). Throughout the month of October, Sendai witnesses an average temperature of 12.1°C (53.8°F).Humidity
The average relative humidity in October in Sendai is 76%.Rainfall
The months with the most rainfall in Sendai are July and October, with an average 111mm (4.37") of precipitation.Snowfall
In Sendai, snow does not fall in May through November.Sea temperature
In Sendai, in October, the average water temperature is 19.2°C (66.6°F).Note: Swimming is not a pleasurable activity for the majority in water at 19.2°C (66.6°F). Breathing control gets harder as the water temperature dips from 21°C (69.8°F) to 15°C (59°F).
Daylight
In Sendai, the average length of the day in October is 11h and 13min.On the first day of October, sunrise is at 05:32 and sunset at 17:19. On the last day of the month, sunrise is at 06:01 and sunset at 16:38 JST.
Sunshine
In October, the average sunshine is 7.3h.UV index
In Sendai, the average daily maximum UV index in October is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: A maximum high UV index of 4 in October translates into the following recommendations:
Be vigilant - Suggestions to stave off sun damage are provided. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Sendai, Japan
- Average high temperature in October: 18.5°C
The warmest month (with the highest average high temperature) is August (27.8°C).
The month with the lowest average high temperature is January (3.3°C).
- Average low temperature in October: 12.1°C
The month with the highest average low temperature is August (21.4°C).
The coldest months (with the lowest average low temperature) are January and February (-1.7°C).
Average pressure in October
Sendai, Japan
- Average pressure in October: 1017.5mbar
The month with the highest atmospheric pressure is November (1018.7mbar).
The month with the lowest atmospheric pressure is June (1009.3mbar).
Average wind speed in October
Sendai, Japan
- Average wind speed in October: 11.7km/h
The windiest month (with the highest average wind speed) is January (14.4km/h).
The calmest month (with the lowest average wind speed) is July (8.1km/h).
Average humidity in October
Sendai, Japan
- Average humidity in October: 76%
The month with the highest relative humidity is July (84%).
The months with the lowest relative humidity are April and May (72%).
Average rainfall in October
Sendai, Japan
- Average rainfall in October: 111mm
The wettest months (with the highest rainfall) are July and October (111mm).
The driest month (with the least rainfall) is February (22mm).
Average rainfall days in October
Sendai, Japan
- Average rainfall days in October: 11.8 days
The month with the highest number of rainy days is July (20.7 days).
The month with the least rainy days is January (8.7 days).
Average snowfall in October
Sendai, Japan
- Average snowfall in October: 0mm
The month with the highest snowfall is February (63mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).
Average snowfall days in October
Sendai, Japan
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is February (9.2 days).
The months with the least snowfall days are May, June, July, August, September, October and November (0 days).
Average sea temperature in October
Sendai, Japan
- Average sea temperature in October: 19.2°C
The best month for swimming (with the highest average sea temperature) is August (23.9°C).
The coldest month (with the lowest average sea temperature) is March (7.5°C).
Average daylight in October /
Average sunshine in October
Sendai, Japan
- Average daylight in October: 11h and 12min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in October: 7h and 18min
The month with the most sunshine is May (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in October
Sendai, Japan
- Average sunshine days in October: 16.3 days
The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is July (7.2 days).
Average UV index in October
Sendai, Japan
- Average UV index in October: 4
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in October
Sendai, Japan
- Average cloud cover in October: 37
The month with the most cloud cover is July (Cloud cover 49).
The month with the least cloud cover is May (Cloud cover 36).
Average visibility in October
Sendai, Japan
- Average visibility in October: 10km
The months with the highest visibility are October, November and December (10km).
The month with the lowest visibility is July (8km).





