October weather forecast
Waimalu, HI

Share

Weather in October

October in Waimalu exhibits the onset of fall, accompanied by a gradual decrease in temperature. Distinct weather features include the receding daylight hours and consistent sea temperature, which pleases both locals and tourists. The average wind speed scales down to 8.9mph (14.3km/h), contributing to the calm and comfortable climate throughout October. On the contrary, this month records the highest rainfall of the year with a peak at 2.09" (53mm). Despite the increased rainfall, Waimalu radiates persistent warmth and comfort during October, building onto the serene fall ambience.

Temperature

With the onset of October, a modest change to a still moderately hot 81.1°F (27.3°C) from September's 82°F (27.8°C) is noted in high-temperature. Waimalu's average temperature during the nights of October is recorded at a still warm 74.7°F (23.7°C).

Heat index

October's mean heat index is appraised at a hot 86°F (30°C). Continuous exposure and activity could induce a sense of tiredness and subsequently, heat cramps.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', offers an insight into how hot it feels when we factor in moisture content. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.

Humidity

In October, the average relative humidity is 75%.

Rainfall

October is the month with the most rainfall. Rain falls for 18.4 days and accumulates 2.09" (53mm) of precipitation.

Ocean temperature

The months with the warmest seawater in Waimalu are August through October, with an average ocean temperature of 80.6°F (27°C).
Note: Surface water temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as excellent and extremely agreeable for enduring enjoyment in water activities.

Daylight

In October, the average length of the day is 11h and 38min.
On the first day of October, sunrise is at 6:23 am and sunset at 6:19 pm. On the last day of the month, sunrise is at 6:34 am and sunset at 5:55 pm HST.

Sunshine

In Waimalu, Hawaii, the average sunshine in October is 7.8h.

UV index

The months with the lowest UV index in Waimalu are January through August, October through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: A maximum high daily UV index of 6 during October translates into the following directions:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. During bright days, sunglasses that offer UVA and UVB defense are recommended. Caution! Sand and water surfaces escalate the UV intensity from the Sun.
[Resources]

Frequently asked questions

What are the temperatures in Waimalu in October?

The high-temperature in Waimalu, Hawaii, during October is 81.1°F (27.3°C) and the low-temperature is 74.7°F (23.7°C). In October, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is appraised at 86°F (30°C).

What is the average humidity in October in Waimalu?

In Waimalu, the average relative humidity in October is 75%.

What is the wettest month in Waimalu?

The month with the most rainfall in Waimalu, Hawaii, is October, when the rain falls for 18.4 days and typically aggregates up to 2.09" (53mm) of precipitation.

How many days does it rain in October in Waimalu?

In Waimalu, in October, it is raining for 18.4 days, with typically 2.09" (53mm) of accumulated precipitation.

When is the ocean warmest in Waimalu?

August through October, with an average ocean temperature of 80.6°F (27°C), are months with the warmest seawater.

What is the ocean temperature in October in Waimalu?

In Waimalu, the average seawater temperature in October is 80.6°F (27°C). For swimming, diving, and other water activities, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

What is the average length of the day in October in Waimalu?

The average day length in October in Waimalu is 11h and 38min.

When is the sunrise / sunset in October in Waimalu?

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, in Waimalu, Hawaii, sunrise is at 6:34 am and sunset at 5:55 pm HST.

How many hours of sunshine does Waimalu have in October?

The average sunshine duration in October in Waimalu is 7.8h.

What is the month with the lowest UV index in Waimalu?

The months with the lowest UV index in Waimalu are January through August, October through December, with an average maximum UV index of 6.

How high is the UV index in October in Waimalu?

In Waimalu, the average daily maximum UV index in October is 6. A UV Index estimate of 6 to 7 represents a high health threat from unprotected exposure to 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
Waimalu, HI

Average temperature in October - Waimalu, HI
  • Average high temperature in October: 81.1°F

The warmest months (with the highest average high temperature) are August and September (82°F).
The months with the lowest average high temperature are February and March (75.4°F).

  • Average low temperature in October: 74.7°F

The month with the highest average low temperature is September (75°F).
The coldest month (with the lowest average low temperature) is February (68°F).

[Resources]

Average pressure in October
Waimalu, HI

Average pressure in October - Waimalu, 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).

[Resources]

Average wind speed in October
Waimalu, HI

Average wind speed in October - Waimalu, HI
  • Average wind speed in October: 8.5mph

The windiest month (with the highest average wind speed) is July (11.3mph).
The calmest month (with the lowest average wind speed) is January (8.4mph).

[Resources]

Average humidity in October
Waimalu, HI

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

The months with the highest relative humidity are February and December (76%).
The months with the lowest relative humidity are April, May, June and September (74%).

[Resources]

Average rainfall in October
Waimalu, HI

Average rainfall in October - Waimalu, HI
  • Average rainfall in October: 2.09"

The wettest month (with the highest rainfall) is October (2.09").
The driest month (with the least rainfall) is July (0.71").

[Resources]

Average rainfall days in October
Waimalu, HI

Average rainfall days in October - Waimalu, HI
  • Average rainfall days in October: 18.4 days

The month with the highest number of rainy days is March (20 days).
The month with the least rainy days is January (13.5 days).

[Resources]

Average sea temperature in October
Waimalu, HI

Average sea temperature in October - Waimalu, HI
  • Average sea temperature in October: 81°F

The best months for swimming (with the highest average sea temperature) are August, September and October (81°F).
The coldest months (with the lowest average sea temperature) are January, February, March and April (75°F).

[Resources]

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

Average daylight in October / Average sunshine in October - Waimalu, 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 54min).

  • Average sunshine in October: 7h and 5min

The month with the most sunshine is June (Average sunshine: 9h and 54min).
The months with the least sunshine are November and December (Average sunshine: 6h and 18min).

[Resources]

Average sunshine days in October
Waimalu, HI

Average sunshine days in October - Waimalu, HI
  • Average sunshine days in October: 6.3 days

The month with the most sunshine days is January (12.3 days).
The month with the least sunshine days is November (6.2 days).

[Resources]

Average UV index in October
Waimalu, HI

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

The month with the highest UV index is September (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, October, November and December (UV index 6).

[Resources]

Average cloud cover in October
Waimalu, HI

Average cloud cover in October - Waimalu, HI
  • Average cloud cover in October: 39

The month with the most cloud cover is March (Cloud cover 44).
The month with the least cloud cover is January (Cloud cover 36).

[Resources]

Average visibility in October
Waimalu, HI

Average visibility in October - Waimalu, 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).

[Resources]

Waimalu, Hawaii, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location