Hilo Weather in October
With daytime temperatures of 25°C (77°F) and nighttime lows of 20°C (68°F), October in Hilo brings high temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 154 mm (6.1 in) falls on average.
Rainfall in Hilo in October
You can typically expect 18 days of rain this month, averaging around 154 mm (6.1 in). Expect frequent rainfall this month, and not just light drizzle. When it rains, it tends to come down hard.
Temperature in Hilo in October
Hilo in October gets highs of 25°C (77°F) during the day and drops to 20°C (68°F) at night. This kind of day-to-night contrast is typical for this time of year. At 20°C (68°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.
Sunshine in Hilo in October
You can expect a moderate amount of sunlight, with approximately 140 hours. This means a pleasant mix of sun and overcast.If you're a fan of comfortable temperatures and drier conditions, October is a great time to visit.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Hilo's climate page.
Hilo Temperature in October
Min Temperature
20°C (68°F)
Max Temperature
25°C (77°F)
Chance of Rain
61%
Precipitation
154 mm (6.1 in)
Rainy days
18 days
Humidity
80%
Sunshine
140 hours
Percentage Sunshine
38%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Hilo typically stay consistent throughout October, with daily highs averaging around 25°C (77°F). Nights are warm, with lows around 20°C (68°F).
Average temperatures in October
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in October
Historical weather for Hilo in October
Browse day-by-day weather records for Hilo spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Hilo historical weather extremes in October
Based on 27 years of weather observations (1998-2025), these are the most extreme conditions recorded in Hilo.
- On October 22, 2020, temperatures climbed to 32°C (90°F), marking the warmest October day on record.
- The lowest daytime temperature in October was 23°C (73°F), recorded on October 8, 1998.
- The coldest night in October in Hilo was on October 6, 1998, with a minimum of 10°C (50°F).
Best Places in the United States of America in October
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in October →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Hilo in October
Warm but pleasant conditions in Hilo in October. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Hilo in October
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Hilo's climate page.
Temperature Rainfall Sunshine Humidity
See the full Hilo climate overview or explore weather in the United States of America.
