Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average sea temperature in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
Weather in October
Temperature
October brings a marginal elevation to a still warm 74.7°F (23.7°C) from September's 75.2°F (24°C) in Hilo's average high-temperatures. In Hilo, a slight decrease from the daytime peak is noted during the month of October, with an average low-temperature of 69.6°F (20.9°C).Humidity
In October, the average relative humidity is 79%.Rainfall
In Hilo, during October, the rain falls for 20.1 days and regularly aggregates up to 2.8" (71mm) of precipitation. In Hilo, during the entire year, the rain falls for 227.7 days and collects up to 27.83" (707mm) of precipitation.Ocean temperature
In Hilo, Hawaii, the average seawater temperature in October is 79.2°F (26.2°C).Note: A water temperature from 77°F (25°C) to 84.2°F (29°C) is considered very warm and enjoyable, allowing water activities to be pleasant for extended periods without irritation.
Daylight
The average length of the day in October in Hilo is 11h and 41min.On the first day of the month, sunrise is at 6:11 am and sunset at 6:08 pm. On the last day of October, in Hilo, sunrise is at 6:21 am and sunset at 5:46 pm HST.
Sunshine
In Hilo, the average sunshine in October is 7.3h.UV index
The months with the highest UV index in Hilo are May through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: A daily maximum UV index of 6 in October translates into the following instructions:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. 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. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Be alert! The reflection of water and sand augments UV radiation intensity.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in October in Hilo?
What is the average humidity in October in Hilo?
How much does it rain in Hilo in October?
What is the ocean temperature in October in Hilo?
How many hours of daylight does Hilo have in October?
When are sunrise and sunset in October in Hilo?
How many hours of sunshine does Hilo have in October?
What are the months with the highest UV index in Hilo?
How high is the UV index in October in Hilo?
Average temperature in October
Hilo, HI
- Average high temperature in October: 74.7°F
The warmest month (with the highest average high temperature) is August (75.4°F).
The month with the lowest average high temperature is March (69.6°F).
- Average low temperature in October: 69.6°F
The month with the highest average low temperature is September (70°F).
The coldest month (with the lowest average low temperature) is March (64°F).
Average pressure in October
Hilo, HI
- Average pressure in October: 29.97"Hg
The month with the highest atmospheric pressure is April (30.05"Hg).
The months with the lowest atmospheric pressure are September and October (29.97"Hg).
Average wind speed in October
Hilo, HI
- Average wind speed in October: 6.7mph
The windiest month (with the highest average wind speed) is August (7.6mph).
The calmest month (with the lowest average wind speed) is October (6.7mph).
Average humidity in October
Hilo, HI
- Average humidity in October: 79%
The month with the highest relative humidity is March (80%).
The months with the lowest relative humidity are January, May, June and July (78%).
Average rainfall in October
Hilo, HI
- Average rainfall in October: 2.8"
The wettest month (with the highest rainfall) is February (3.78").
The driest month (with the least rainfall) is June (1.1").
Average rainfall days in October
Hilo, HI
- Average rainfall days in October: 20.1 days
The month with the highest number of rainy days is March (22.9 days).
The month with the least rainy days is January (13.3 days).
Average sea temperature in October
Hilo, HI
- Average sea temperature in October: 79.1°F
The best month for swimming (with the highest average sea temperature) is September (79.3°F).
The coldest month (with the lowest average sea temperature) is March (75.7°F).
Average daylight in October /
Average sunshine in October
Hilo, HI
- Average daylight in October: 11h and 4min
The month with the longest days is June (Average daylight: 13h and 18min).
The month with the shortest days is December (Average daylight: 11h and 0min).
- Average sunshine in October: 7h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).
Average sunshine days in October
Hilo, HI
- Average sunshine days in October: 3.8 days
The month with the most sunshine days is January (12.1 days).
The month with the least sunshine days is August (1.8 days).
Average UV index in October
Hilo, HI
- Average UV index in October: 6
The months with the highest UV index are May, June, July, August, September, October, November and December (UV index 6).
The months with the lowest UV index are January, February, March and April (UV index 5).
Average cloud cover in October
Hilo, HI
- Average cloud cover in October: 32
The month with the most cloud cover is March (Cloud cover 42).
The month with the least cloud cover is January (Cloud cover 26).
Average visibility in October
Hilo, 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).
Hilo, Hawaii, USA
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