Hilo, HI weather in October
In October, Hilo sees highs around 82°F and lows around 69°F: warm and humid, with rain on most days. Rain falls on about 23 days. Pack rain gear.
- Normal high
- 82°F
- Normal low
- 69°F
- Wet days
- 23
- 10.2 in total
- Muggy days
- 27
- dew point 65°F+
How October changes from start to finish
| October 1 | October 31 | |
|---|---|---|
| Normal high | 83°F | 81°F |
| Normal low | 69°F | 68°F |
| Chance of a wet day | 75% | 77% |
| Sunrise / sunset | 6:11 am / 6:08 pm | 6:21 am / 5:46 pm |
| Daylight | 12.0 h | 11.4 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Hawaii time (no daylight saving)).
A typical October day
- 6 am70°Fdew point 65°F
- 9 am78°Fdew point 69°F
- Noon81°Fdew point 70°F
- 3 pm81°Fdew point 69°F
- 6 pm77°Fdew point 69°F
- 9 pm74°Fdew point 69°F
NOAA hourly normals (local standard time) from Hilo Intl Airport (2 mi away); average wind 6 mph.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F0 of 31
- Beach dayshigh 80-95°F, under 0.05 in of rain, afternoon wind under 15 mph11 of 31
- Hot dayshigh 90°F or more0 of 31
- Muggy daysdaily mean dew point 65°F or more27 of 31
- Wet daysat least 0.01 in of rain or melted snow23 of 31
- Notable rainat least 0.10 in17 of 31
- Freezing nightslow 32°F or below0 of 31
Average days per October, counted from daily records for each year 1991-2020.
Rain in October
Normal precipitation is 10.2 in; a dry October brings about 5.7 in and a wet one about 14.1 in (25th and 75th percentiles). About 6 days bring half an inch or more, and about 3 an inch or more.
How October varies from year to year
- Warmest October, 1991-20202020: average high 87°F
- Coolest October1998: average high 81°F
- Wettest October2016: 19.1 in
- Driest October2012: 2.9 in
- Highest reading90°F (October 22, 2020)
- Lowest reading62°F (October 19, 1999)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
October compared with September and November
| September | October | November | |
|---|---|---|---|
| Normal high | 83°F | 82°F | 80°F |
| Normal low | 70°F | 69°F | 68°F |
| Wet days | 23 | 23 | 23 |
| Comfortable days | 0 | 0 | 0 |
| Daylight | 12.3 h | 11.7 h | 11.2 h |
Highs change by -1°F from September and -2°F into November.
Nearby alternatives in October
- Warmer: Kihei, HI114 mi · high 89°F · 7 wet days
- Drier: Kailua-Kona, HI59 mi · high 86°F · 4 wet days
How Hilo ranks in October
- Normal high54th warmest of 378 cities; 7th of 7 in Hawaii
- Wet days377th driest of 378
- Comfortable days338th most of 340
What to pack for Hilo in October
- A rain jacket or umbrella – rain on about 23 days
- A swimsuit – about 11 beach days
Heating and cooling
October has 0 heating degree days and 332 cooling degree days (base 65°F), 10% of the year's total heating and cooling demand.
Questions
How hot is Hilo in October?
The normal high is 82°F and the normal low is 69°F. From 1991 to 2020 the hottest October reading was 90°F (most recently on October 22, 2020).
Does it rain a lot in Hilo in October?
About 23 days in October have at least 0.01 in of precipitation, and the normal total is 10.2 in. The wettest October in 1991-2020 was in 2016 (19.1 in); the driest was in 2012 (2.9 in).
Is October a good time to visit Hilo?
October ranks 10th of 12 months on our comfort score for Hilo (38 out of 100). It has almost no comfortable days. The best months are January and February.
Where the numbers come from
- Temperature, rain, frost dates and humidity and wind by hour: Hilo Intl Airport (USW00021504), 2.2 mi E of the city center, 38 ft . NOAA normals and daily records, 1991-2020.
- Snowfall and snow depth: Kapoho Beach 93.11 (USC00513368), 23 mi SE of the city center, 20 ft . NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Hilo International Airport (912850-21504), 2.5 mi E of the city center, 29 ft . Hourly observations, 1991-2020.
- Not available for this location: cloud cover (no station close enough or similar enough in elevation).