October weather forecastWaipahu, HI
October
Weather in October
October brings a further slight decrease in temperatures in Waipahu, Hawaii, with the highest reading being 81.1°F (27.3°C). This month marks a departure from summer towards more autumnal weather, which affects the amount of rainfall measured. The wxperienced weather patterns record increasing rainfall, with October receiving an average of 2.09" (53mm). Despite the cooler temperatures, the water remains pleasantly warm, encouraging tourists and locals to engage in beach activities. It's worth mentioning that the amount of daylight begins to lessen, signaling the onset of shorter days.Temperature
As Waipahu welcomes October, the average high-temperature is noted at a still warm 81.1°F (27.3°C), closely aligning with the preceding month. October's average low temperature is a still warm 74.7°F (23.7°C), displaying a subtle drop from its daily peak.Heat index
The average heat index in October is computed to be a tropical 86°F (30°C). If one endures exposure and continues to be active, it might result in tiredness and heat cramps.Heat index data is primarily for areas with shade and subjected to light winds. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
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
In Waipahu, the average seawater temperature in October is 79.9°F (26.6°C).Note: Water temperature ranging between 77°F (25°C) and 84.2°F (29°C) is considered very warm and pleasing for everyone. It allows for enjoyable water activities over extended periods without discomfort.
Daylight
In Waipahu, the average length of the day in October is 11h and 39min.On the first day of October in Waipahu, 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.
Sunshine
In October, the average sunshine is 7.8h.UV index
The months with the lowest UV index 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 risk from unsafe exposure to UV radiation for the average person.Note: The UV index of 6 during October translates into the following guidance:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Stay aware! UV radiation is magnified when reflecting off sand and water.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Waipahu, 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).
Average pressure in October
Waipahu, 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
Waipahu, 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).
Average humidity in October
Waipahu, 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%).
Average rainfall in October
Waipahu, 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").
Average rainfall days in October
Waipahu, 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).
Average sea temperature in October
Waipahu, HI
- Average sea temperature in October: 79.9°F
The best month for swimming (with the highest average sea temperature) is September (80.6°F).
The coldest month (with the lowest average sea temperature) is March (75.7°F).
Average daylight in October /
Average sunshine in October
Waipahu, HI
- Average daylight in October: 11h and 36min
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 48min
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).
Average sunshine days in October
Waipahu, 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).
Average UV index in October
Waipahu, 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).
Average cloud cover in October
Waipahu, 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).
Average visibility in October
Waipahu, 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).
