October weather forecast
Iwanuma, Japan

October

Weather in October

October, like September, in Iwanuma, Japan, is another refreshing autumn month, with an average temperature ranging between min 12.5°C (54.5°F) and max 18.5°C (65.3°F).

Temperature

October suggests a modest reduction in the average high-temperature, shifting from a warm 23.8°C (74.8°F) in September to a comfortable 18.5°C (65.3°F). In Iwanuma, an average nighttime temperature of 12.5°C (54.5°F) is expected during October.

Humidity

In Iwanuma, the average relative humidity in October is 76%.

Rainfall

In Iwanuma, in October, it is raining for 12.2 days, with typically 114mm (4.49") of accumulated precipitation. Throughout the year, in Iwanuma, Japan, there are 141.6 rainfall days, and 753mm (29.65") of precipitation is accumulated.

Snowfall

May through November are months without snowfall.

Daylight

The average length of the day in October in Iwanuma is 11h and 13min.
On the first day of the month, sunrise is at 05:32 and sunset at 17:19. On the last day of October, in Iwanuma, sunrise is at 06:01 and sunset at 16:38 JST.

Sunshine

In October, the average sunshine in Iwanuma is 7.3h.

UV index

In Iwanuma, the average daily maximum UV index in October is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: A daily high UV index of 4 in October leads to these guidelines:
Undertake precautions - Obligation exists to protect against skin and eye damage. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.

Frequently asked questions

What is the temperature in October in Iwanuma?
The high-temperature, in October, in Iwanuma, records 18.5°C (65.3°F), while the low-temperature is 12.5°C (54.5°F). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines relative humidity and air temperature, in August is calculated to be 31°C (87.8°F).
What is the average humidity in October in Iwanuma?
In Iwanuma, Japan, the average relative humidity in October is 76%.
How many days does it rain in October in Iwanuma?
In Iwanuma, Japan, in October, during 12.2 rainfall days, 114mm (4.49") of precipitation is typically accumulated.
When it does not snow in Iwanuma?
May through November are months without snowfall in Iwanuma.
What is the average length of the day in October in Iwanuma?
In Iwanuma, the average day length in October is 11h and 13min.
When are sunrise and sunset in October in Iwanuma?
On the first day of October in Iwanuma, 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.
How many hours of sunshine does Iwanuma have in October?
The average sunshine duration in October is 7.3h.
What is the UV index intensity in October in Iwanuma?
In October, the average daily maximum UV index in Iwanuma is 4. A UV Index value of 3 to 5 symbolizes a medium health risk from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in October
Iwanuma, Japan
  • Average high temperature in October: 18.5°C

The warmest month (with the highest average high temperature) is August (27.6°C).
The month with the lowest average high temperature is January (3.6°C).

  • Average low temperature in October: 12.5°C

The month with the highest average low temperature is August (21.5°C).
The coldest month (with the lowest average low temperature) is February (-1.2°C).

Average pressure in October
Iwanuma, 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
Iwanuma, Japan
  • Average wind speed in October: 12.2km/h

The windiest month (with the highest average wind speed) is January (15.4km/h).
The calmest month (with the lowest average wind speed) is July (8.4km/h).

Average humidity in October
Iwanuma, Japan
  • Average humidity in October: 76%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is April (72%).

Average rainfall in October
Iwanuma, Japan
  • Average rainfall in October: 114mm

The wettest month (with the highest rainfall) is July (118mm).
The driest month (with the least rainfall) is February (22mm).

Average rainfall days in October
Iwanuma, Japan
  • Average rainfall days in October: 12.2 days

The month with the highest number of rainy days is July (19.6 days).
The month with the least rainy days is February (6.1 days).

Average snowfall in October
Iwanuma, Japan
  • Average snowfall in October: 0mm

The month with the highest snowfall is January (67mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).

Average snowfall days in October
Iwanuma, Japan
  • Average snowfall days in October: 0 days

The month with the highest number of snowfall days is January (7 days).
The months with the least snowfall days are May, June, July, August, September, October and November (0 days).

Average daylight in October /
Average sunshine in October
Iwanuma, Japan
  • Average daylight in October: 11h and 1min

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 2min

The month with the most sunshine is May (Average sunshine: 9h and 36min).
The months with the least sunshine are January and February (Average sunshine: 5h and 6min).

Average sunshine days in October
Iwanuma, Japan
  • Average sunshine days in October: 17.6 days

The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is July (8.6 days).

Average UV index in October
Iwanuma, 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 and December (UV index 2).

Average cloud cover in October
Iwanuma, Japan
  • Average cloud cover in October: 37

The month with the most cloud cover is July (Cloud cover 48).
The month with the least cloud cover is May (Cloud cover 35).

Average visibility in October
Iwanuma, Japan
  • Average visibility in October: 10km

The months with the highest visibility are January, February, March, October, November and December (10km).
The months with the lowest visibility are April, May, June, July, August and September (9km).

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