October weather forecast
Wahiawa, HI

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Weather in October

October marks the onset of autumn in Wahiawa, bringing subtle changes in the weather pattern. The frequency of showers increases, imbuing the city with a fresh appeal. The temperatures begin to cool down from their summer highs, signaling the arrival of fall. Beachgoers enjoy more pleasant conditions, while the island tranquility is accompanied by a comfortable breeze. October stands out for its highest rainfall of 2.6" (66mm).

Temperature

October's arrival brings an average high-temperature of a still moderately hot 81.3°F (27.4°C), slightly deviating from September's 82.4°F (28°C). Wahiawa maintains an average low-temperature of 73.8°F (23.2°C) throughout October's nights.

Heat index

Throughout October, the heat index is estimated at a tropical 86°F (30°C). With prolonged exposure and constant activity, one might feel exhausted and experience heat cramps.
When referencing the heat index, its values are suitable for shady environments and light breezes. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', represents the fusion of temperature and moisture in the air to suggest how warm it feels. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.

Humidity

In October, the average relative humidity is 75%.

Rainfall

October is the month with the most rainfall. Rain falls for 22.1 days and accumulates 2.6" (66mm) of precipitation.

Daylight

In Wahiawa, Hawaii, the average length of the day in October is 11h and 38min.
On the first day of the month, sunrise is at 6:23 am and sunset at 6:19 pm. On the last day of October, sunrise is at 6:35 am and sunset at 5:56 pm HST.

Sunshine

In Wahiawa, the average sunshine in October is 7h.

UV index

March through November, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index, 6 in October, converts into the following recommendations:
Shield from overexposure. Defense against sun-related harm is required. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.

Frequently asked questions

What is the temperature in October?

In October, in Wahiawa, the average high-temperature is 81.3°F (27.4°C), and the average low-temperature is 73.8°F (23.2°C). In October, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is estimated at 86°F (30°C).

What is the average humidity in October?

The average relative humidity in October is 75%.

What is the wettest month?

The month with the most rainfall is October, when the rain falls for 22.1 days and typically aggregates up to 2.6" (66mm) of precipitation.

How much does it rain in October?

In Wahiawa, during October, the rain falls for 22.1 days and regularly aggregates up to 2.6" (66mm) of precipitation.

What is the average length of the day in October?

In Wahiawa, the average day length in October is 11h and 38min.

When are sunrise and sunset in October?

In October, on the first day of the month, sunrise is at 6:23 am and sunset at 6:19 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 5:56 pm HST.

How many hours of sunshine does Wahiawa have in October?

In October, the average sunshine duration is 7h.

What are the months with the highest UV index?

The months with the highest UV index are March through November, with an average maximum UV index of 6.

What is the UV index reading in October?

In Wahiawa, the average daily maximum UV index in October is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Wahiawa, HI

Average temperature in October - Wahiawa, HI
  • Average high temperature in October: 81.3°F

The warmest month (with the highest average high temperature) is August (82.6°F).
The month with the lowest average high temperature is February (75.6°F).

  • Average low temperature in October: 73.8°F

The month with the highest average low temperature is September (74.3°F).
The coldest month (with the lowest average low temperature) is February (66.7°F).

Average pressure in October
Wahiawa, HI

Average pressure in October - Wahiawa, HI
  • Average pressure in October: 29.97"Hg

The month with the highest atmospheric pressure is April (30.06"Hg).
The months with the lowest atmospheric pressure are September and October (29.97"Hg).

Average wind speed in October
Wahiawa, HI

Average wind speed in October - Wahiawa, HI
  • Average wind speed in October: 7.6mph

The windiest months (with the highest average wind speed) are June and July (10.2mph).
The calmest month (with the lowest average wind speed) is October (7.6mph).

Average humidity in October
Wahiawa, HI

Average humidity in October - Wahiawa, HI
  • Average humidity in October: 75%

The months with the highest relative humidity are February and December (77%).
The month with the lowest relative humidity is September (73%).

Average rainfall in October
Wahiawa, HI

Average rainfall in October - Wahiawa, HI
  • Average rainfall in October: 2.6"

The wettest month (with the highest rainfall) is October (2.6").
The driest month (with the least rainfall) is July (1.26").

Average rainfall days in October
Wahiawa, HI

Average rainfall days in October - Wahiawa, HI
  • Average rainfall days in October: 22.1 days

The month with the highest number of rainy days is August (23.8 days).
The month with the least rainy days is January (16 days).

Average daylight in October /
Average sunshine in October
Wahiawa, HI

Average daylight in October / Average sunshine in October - Wahiawa, HI
  • Average daylight in October: 11h and 4min

The month with the longest days is June (Average daylight: 13h and 24min).
The month with the shortest days is December (Average daylight: 10h and 48min).

  • Average sunshine in October: 7h and 0min

The month with the most sunshine is June (Average sunshine: 8h and 24min).
The month with the least sunshine is November (Average sunshine: 5h and 36min).

Average sunshine days in October
Wahiawa, HI

Average sunshine days in October - Wahiawa, HI
  • Average sunshine days in October: 4.8 days

The month with the most sunshine days is January (10.8 days).
The month with the least sunshine days is August (3.3 days).

Average UV index in October
Wahiawa, HI

Average UV index in October - Wahiawa, HI
  • Average UV index in October: 6

The months with the highest UV index are March, April, May, June, July, August, September, October and November (UV index 6).
The months with the lowest UV index are January, February and December (UV index 5).

Average cloud cover in October
Wahiawa, HI

Average cloud cover in October - Wahiawa, HI
  • Average cloud cover in October: 48

The month with the most cloud cover is June (Cloud cover 52).
The month with the least cloud cover is January (Cloud cover 43).

Average visibility in October
Wahiawa, HI

Average visibility in October - Wahiawa, HI
  • Average visibility in October: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Wahiawa, Hawaii, USA

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