October weather forecastIyo, Japan

October

Weather in October

October, like September, is an agreeable autumn month in Iyo, Japan, with an average temperature varying between 15.5°C (59.9°F) and 21°C (69.8°F).

Temperature

October's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from September's warm 25.5°C (77.9°F) to a pleasant 21°C (69.8°F). During the month of October, the temperature generally drops to a low average of 15.5°C (59.9°F).

Humidity

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

Rainfall

In Iyo, Japan, during October, the rain falls for 11.4 days and regularly aggregates up to 52mm (2.05") of precipitation. In Iyo, during the entire year, the rain falls for 162.8 days and collects up to 749mm (29.49") of precipitation.

Snowfall

March through November are months without snowfall.

Sea temperature

In Iyo, Japan, the average seawater temperature in October is 24.1°C (75.4°F).
Note: Think about diving into 24.1°C (75.4°F) waters. Factors like your sensitivity to cold, the brightness of the sun, wind conditions, and the day's warmth play a role. For reference, Olympic swimming competitions use waters between 25°C (77°F) and 28°C (82.4°F).

Daylight

In Iyo, Japan, the average length of the day in October is 11h and 21min.
On the first day of October in Iyo, sunrise is at 06:03 and sunset at 17:53. On the last day of the month, sunrise is at 06:27 and sunset at 17:18 JST.

Sunshine

In Iyo, the average sunshine in October is 6.2h.

UV index

In Iyo, the average daily maximum UV index in October is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum UV index of 4 during October leads to these instructions:
Guard yourself - Precautionary measures against sun damage are advocated. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Opt for tightly woven and loose clothing to enhance protection from the Sun. Heed this! UV intensity is much stronger when reflected off sand and water.

Frequently asked questions

In October, in Iyo, the average high-temperature is 21°C (69.8°F), and the average low-temperature is 15.5°C (59.9°F). In August, the average heat index (a.k.a. 'real feel', 'feels like'), which combines air temperature and relative humidity, is computed to be 35°C (95°F).

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

In Iyo, Japan, in October, during 11.4 rainfall days, 52mm (2.05") of precipitation is typically accumulated.

March through November are months without snowfall in Iyo, Japan.

In Iyo, in October, the average water temperature is 24.1°C (75.4°F). Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 24.1°C (75.4°F) water may be enjoyable.

The average day length in October in Iyo is 11h and 21min.

In October, on the first day of the month, sunrise is at 06:03 and sunset at 17:53. On the last day of the month, in Iyo, Japan, sunrise is at 06:27 and sunset at 17:18 JST.

In Iyo, Japan, the average sunshine duration in October is 6.2h.

In October, the average daily maximum UV index in Iyo, Japan, is 4. A UV Index value of 3 to 5 symbolizes a medium health risk from exposure to the Sun's 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 sea temperature
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Iyo, Japan

  • Average high temperature in October: 21°C

The warmest month (with the highest average high temperature) is August (29.2°C).
The month with the lowest average high temperature is January (8°C).

  • Average low temperature in October: 15.5°C

The month with the highest average low temperature is August (23.4°C).
The coldest month (with the lowest average low temperature) is January (2.9°C).

Average pressure in October
Iyo, Japan

  • Average pressure in October: 1016.8mbar

The month with the highest atmospheric pressure is January (1021mbar).
The month with the lowest atmospheric pressure is June (1008.4mbar).

Average wind speed in October
Iyo, Japan

  • Average wind speed in October: 10.1km/h

The windiest month (with the highest average wind speed) is January (12.2km/h).
The calmest month (with the lowest average wind speed) is June (6.6km/h).

Average humidity in October
Iyo, Japan

  • Average humidity in October: 76%

The month with the highest relative humidity is July (84%).
The months with the lowest relative humidity are January, February and March (72%).

Average rainfall in October
Iyo, Japan

  • Average rainfall in October: 52mm

The wettest month (with the highest rainfall) is June (149mm).
The driest month (with the least rainfall) is January (24mm).

Average rainfall days in October
Iyo, Japan

  • Average rainfall days in October: 11.4 days

The month with the highest number of rainy days is July (21.3 days).
The month with the least rainy days is January (8.3 days).

Average snowfall in October
Iyo, Japan

  • Average snowfall in October: 0mm

The month with the highest snowfall is December (6mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).

Average snowfall days in October
Iyo, Japan

  • Average snowfall days in October: 0 days

The month with the highest number of snowfall days is January (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average sea temperature in October
Iyo, Japan

  • Average sea temperature in October: 24.1°C

The best month for swimming (with the highest average sea temperature) is August (27.2°C).
The coldest month (with the lowest average sea temperature) is February (14.7°C).

Average daylight in October /
Average sunshine in October
Iyo, Japan

  • Average daylight in October: 11h and 18min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in October: 6h and 12min

The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).

Average sunshine days in October
Iyo, Japan

  • Average sunshine days in October: 17.5 days

The month with the most sunshine days is January (20.3 days).
The month with the least sunshine days is August (6.4 days).

Average UV index in October
Iyo, Japan

  • Average UV index in October: 4

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).

Average cloud cover in October
Iyo, Japan

  • Average cloud cover in October: 32

The month with the most cloud cover is January (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in October
Iyo, Japan

  • Average visibility in October: 10km

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