Honolulu weather in July: Honolulu, Hawaii: normal highs, lows, rain and records for July
Honolulu in July has a normal high of 88°F and a normal low of 75°F, a daily mean of 82°F, holding near 88°F all month. Measurable precipitation falls on 7 days in a normal July, 0.52 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 31°C and low of 24°C, 13 mm of precipitation in July.
- 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 July?
The normal high is 88°F and the normal low 75°F, for a daily mean of 81.6°F. July is 1.3°F warmer than June and 0.6°F cooler than August. July is the 2nd warmest month of the year in Honolulu and the 11th wettest. Across the month the normal high rises 1°F, from 88°F on July 1 to 89°F on July 31. From one year to the next July's mean temperature typically moves about 1.2°F either way (NOAA's standard deviation), so roughly two Julys in three average between 80°F and 83°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 23%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| July 1 | 88°F | 75°F | 23% | 3% |
| July 8 | 88°F | 75°F | 23% | 3% |
| July 15 | 88°F | 75°F | 23% | 4% |
| July 22 | 88°F | 75°F | 22% | 4% |
| July 31 | 89°F | 76°F | 20% | 4% |
Every day of July: normal high, low and chance of precipitation (warmest afternoon July 31, coldest night July 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| July 1 | 88°F | 75°F | 23% | 3% | 13 h 20 min |
| July 2 | 88°F | 75°F | 23% | 3% | 13 h 20 min |
| July 3 | 88°F | 75°F | 23% | 3% | 13 h 20 min |
| July 4 | 88°F | 75°F | 23% | 3% | 13 h 20 min |
| July 5 | 88°F | 75°F | 23% | 3% | 13 h 20 min |
| July 6 | 88°F | 75°F | 23% | 3% | 13 h 20 min |
| July 7 | 88°F | 75°F | 23% | 3% | 13 h 20 min |
| July 8 | 88°F | 75°F | 23% | 3% | 13 h 20 min |
| July 9 | 88°F | 75°F | 23% | 4% | 13 h 20 min |
| July 10 | 88°F | 75°F | 23% | 4% | 13 h 20 min |
| July 11 | 88°F | 75°F | 23% | 4% | 13 h 20 min |
| July 12 | 88°F | 75°F | 23% | 4% | 13 h 20 min |
| July 13 | 88°F | 75°F | 23% | 4% | 13 h 20 min |
| July 14 | 88°F | 75°F | 23% | 4% | 13 h 20 min |
| July 15 | 88°F | 75°F | 23% | 4% | 13 h 20 min |
| July 16 | 88°F | 75°F | 23% | 4% | 13 h 20 min |
| July 17 | 88°F | 75°F | 23% | 4% | 13 h 20 min |
| July 18 | 88°F | 75°F | 23% | 4% | 13 h 20 min |
| July 19 | 88°F | 75°F | 23% | 4% | 13 h 20 min |
| July 20 | 88°F | 75°F | 23% | 4% | 13 h 20 min |
| July 21 | 88°F | 75°F | 22% | 4% | 13 h 20 min |
| July 22 | 88°F | 75°F | 22% | 4% | 13 h 10 min |
| July 23 | 88°F | 75°F | 22% | 4% | 13 h 10 min |
| July 24 | 88°F | 75°F | 22% | 4% | 13 h 10 min |
| July 25 | 88°F | 76°F | 22% | 4% | 13 h 10 min |
| July 26 | 88°F | 76°F | 21% | 4% | 13 h 10 min |
| July 27 | 88°F | 76°F | 21% | 4% | 13 h 10 min |
| July 28 | 89°F | 76°F | 21% | 4% | 13 h 10 min |
| July 29 | 89°F | 76°F | 21% | 4% | 13 h 10 min |
| July 30 | 89°F | 76°F | 21% | 4% | 13 h 10 min |
| July 31 | 89°F | 76°F | 20% | 4% | 13 h 10 min |
- Normal high
- 88°FJuly average
- Normal low
- 75°FJuly average
- Precipitation
- 0.52 inmonth total
- Days with precipitation
- 70.01 inch or more
- Days at 90°F or more
- 7
- Daylight
- 13 h 20 min to 13 h 10 minJuly 1 to July 31
- Days at 70°F or more
- 31
- Days at 80°F or more
- 31
- Sunshine
- 88%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 July?
On a given July day the chance of 0.01 inch or more is 22% on average, highest around July 10 (23%). In all, 0.52 in falls on 7 days of a normal July.
In a normal July in Honolulu, 7 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00022521.
How humid and windy is Honolulu in July?
At 3 p.m. the normal temperature is 87°F with 52% relative humidity and a dew point of 67°F; at 6 a.m. it is 77°F with 74% humidity. The wind averages 12.2 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. | 77°F | 68°F | 74% | 8.3 mph | 44% |
| 9 a.m. | 82°F | 68°F | 62% | 12.5 mph | 36% |
| noon | 86°F | 67°F | 53% | 15.7 mph | 29% |
| 3 p.m. | 87°F | 67°F | 52% | 15.9 mph | 34% |
| 6 p.m. | 83°F | 67°F | 59% | 14.5 mph | 38% |
| 9 p.m. | 79°F | 68°F | 68% | 11.9 mph | 53% |
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 July in Honolulu?
The warmest July temperature on Honolulu's official record (since 1940) is 94°F, on July 15, 1995; the coldest is 66°F, on July 23, 1955. The wettest July brought 2.71 in (2016).
The July mean against the 1991-2020 normal of 81.6°F: 2021 81.8°F (+0.2), 2022 81.1°F (−0.5), 2023 81.8°F (+0.3), 2024 81.2°F (−0.4), 2025 81.8°F (+0.2), 2026 82.0°F (+0.4). 4 of 6 ran warmer than normal.
| July | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 81.8°F | +0.2°F | 0.08 in |
| 2022 | 81.1°F | −0.5°F | 0.24 in |
| 2023 | 81.8°F | +0.3°F | 0.20 in |
| 2024 | 81.2°F | −0.4°F | 0.02 in |
| 2025 | 81.8°F | +0.2°F | 0.08 in |
| 2026 | 82.0°F | +0.4°F | 0.02 in |
Source: records: ACIS, NWS threaded record HNLthr; recent months: ACIS, station USW00022521. Records and recent months use complete months only.
How does July in Honolulu compare across Hawaii?
Across the 18 places PlainClimate covers in Hawaii, July normal highs run from 75°F in Kula to 89°F in Kahului; Honolulu's is 88°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.