Honolulu weather in October: Honolulu, Hawaii: normal highs, lows, rain and records for October
Honolulu in October has a normal high of 87°F and a normal low of 74°F, a daily mean of 80°F, falling from 88°F on the 1st to 86°F by the 31st. Measurable precipitation falls on 8 days in a normal October, 1.51 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 31°C and low of 23°C, 38 mm of precipitation in October.
- NOAA stationHonolulu International Airport
- Station IDUSW00022521
- Location21.32°N 157.93°W
- Elevation7 ft (2 m)
- From the center5 miles
- Population (census place)344,967
- Jan 81° 67°
- Feb 81° 67°
- Mar 81° 68°
- Apr 83° 70°
- May 85° 72°
- Jun 87° 74°
- Jul 88° 75°
- Aug 89° 76°
- Sep 88° 75°
- Oct 87° 74°
- Nov 84° 72°
- Dec 82° 69°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Honolulu in October?
The normal high is 87°F and the normal low 74°F, for a daily mean of 80.4°F. October is 1.2°F cooler than September and 2.4°F warmer than November. October is the 4th warmest month of the year in Honolulu and the 6th wettest. Across the month the normal high falls 2°F, from 88°F on October 1 to 86°F on October 31. From one year to the next October's mean temperature typically moves about 1.1°F either way (NOAA's standard deviation), so roughly two Octobers in three average between 79°F and 82°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 27%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| October 1 | 88°F | 75°F | 24% | 8% |
| October 8 | 88°F | 74°F | 25% | 8% |
| October 15 | 87°F | 74°F | 25% | 9% |
| October 22 | 87°F | 74°F | 26% | 9% |
| October 31 | 86°F | 73°F | 27% | 9% |
Every day of October: normal high, low and chance of precipitation (warmest afternoon October 1, coldest night October 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| October 1 | 88°F | 75°F | 24% | 8% | 12 h |
| October 2 | 88°F | 75°F | 24% | 8% | 12 h |
| October 3 | 88°F | 75°F | 24% | 8% | 12 h |
| October 4 | 88°F | 75°F | 24% | 8% | 11 h 50 min |
| October 5 | 88°F | 75°F | 24% | 8% | 11 h 50 min |
| October 6 | 88°F | 75°F | 24% | 8% | 11 h 50 min |
| October 7 | 88°F | 74°F | 24% | 8% | 11 h 50 min |
| October 8 | 88°F | 74°F | 25% | 8% | 11 h 50 min |
| October 9 | 88°F | 74°F | 25% | 8% | 11 h 50 min |
| October 10 | 87°F | 74°F | 25% | 8% | 11 h 50 min |
| October 11 | 87°F | 74°F | 25% | 9% | 11 h 50 min |
| October 12 | 87°F | 74°F | 25% | 9% | 11 h 40 min |
| October 13 | 87°F | 74°F | 25% | 9% | 11 h 40 min |
| October 14 | 87°F | 74°F | 25% | 9% | 11 h 40 min |
| October 15 | 87°F | 74°F | 25% | 9% | 11 h 40 min |
| October 16 | 87°F | 74°F | 25% | 9% | 11 h 40 min |
| October 17 | 87°F | 74°F | 26% | 9% | 11 h 40 min |
| October 18 | 87°F | 74°F | 26% | 9% | 11 h 40 min |
| October 19 | 87°F | 74°F | 26% | 9% | 11 h 40 min |
| October 20 | 87°F | 74°F | 26% | 9% | 11 h 40 min |
| October 21 | 87°F | 74°F | 26% | 9% | 11 h 30 min |
| October 22 | 87°F | 74°F | 26% | 9% | 11 h 30 min |
| October 23 | 86°F | 74°F | 26% | 9% | 11 h 30 min |
| October 24 | 86°F | 73°F | 26% | 9% | 11 h 30 min |
| October 25 | 86°F | 73°F | 27% | 9% | 11 h 30 min |
| October 26 | 86°F | 73°F | 27% | 9% | 11 h 30 min |
| October 27 | 86°F | 73°F | 27% | 9% | 11 h 30 min |
| October 28 | 86°F | 73°F | 27% | 9% | 11 h 30 min |
| October 29 | 86°F | 73°F | 27% | 9% | 11 h 30 min |
| October 30 | 86°F | 73°F | 27% | 9% | 11 h 20 min |
| October 31 | 86°F | 73°F | 27% | 9% | 11 h 20 min |
- Normal high
- 87°FOctober average
- Normal low
- 74°FOctober average
- Precipitation
- 1.51 inmonth total
- Days with precipitation
- 80.01 inch or more
- Days at 90°F or more
- 3
- Daylight
- 12 h to 11 h 20 minOctober 1 to October 31
- Days at 70°F or more
- 31
- Days at 80°F or more
- 31
- Sunshine
- 84%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00022521; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Honolulu in October?
On a given October day the chance of 0.01 inch or more is 25% on average, highest around October 31 (27%). In all, 1.51 in falls on 8 days of a normal October.
In a normal October in Honolulu, 3 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00022521.
How humid and windy is Honolulu in October?
At 3 p.m. the normal temperature is 83°F with 58% relative humidity and a dew point of 67°F; at 6 a.m. it is 74°F with 79% humidity. The wind averages 9.2 mph, most often from the east-northeast in the afternoon. A dew point of 65°F or more feels muggy to most people.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 74°F | 68°F | 79% | 6.2 mph | 61% |
| 9 a.m. | 80°F | 68°F | 66% | 9.0 mph | 48% |
| noon | 84°F | 68°F | 58% | 12.5 mph | 30% |
| 3 p.m. | 83°F | 67°F | 58% | 12.8 mph | 29% |
| 6 p.m. | 79°F | 68°F | 68% | 10.5 mph | 37% |
| 9 p.m. | 77°F | 68°F | 73% | 8.3 mph | 49% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00022521. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for October in Honolulu?
The warmest October temperature on Honolulu's official record (since 1940) is 94°F, on October 6, 1984; the coldest is 61°F, on October 27, 1993. The wettest October brought 11.15 in (1978).
The October mean against the 1991-2020 normal of 80.4°F: 2021 80.3°F (−0.1), 2022 80.8°F (+0.4), 2023 79.4°F (−1.0), 2024 81.3°F (+0.9), 2025 81.3°F (+0.9). 3 of 5 ran warmer than normal.
| October | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 80.3°F | −0.1°F | 0.05 in |
| 2022 | 80.8°F | +0.4°F | 0.79 in |
| 2023 | 79.4°F | −1.0°F | 0.58 in |
| 2024 | 81.3°F | +0.9°F | 0.51 in |
| 2025 | 81.3°F | +0.9°F | 0.19 in |
Source: records: ACIS, NWS threaded record HNLthr; recent months: ACIS, station USW00022521. Records and recent months use complete months only.
How does October in Honolulu compare across Hawaii?
Across the 18 places PlainClimate covers in Hawaii, October normal highs run from 74°F in Kula to 89°F in Kahului; Honolulu's is 87°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.