Honolulu, HI weather in July
Honolulu is hot and humid in July, with some rain: highs average 88°F and nights drop to about 75°F. Expect about 7 wet days.
- Normal high
- 88°F
- Normal low
- 75°F
- Wet days
- 7
- 0.5 in total
- Muggy days
- 25
- dew point 65°F+
How July changes from start to finish
| July 1 | July 31 | |
|---|---|---|
| Normal high | 88°F | 89°F |
| Normal low | 75°F | 76°F |
| Chance of a wet day | 23% | 21% |
| Sunrise / sunset | 5:53 am / 7:17 pm | 6:04 am / 7:11 pm |
| Daylight | 13.4 h | 13.1 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 July day
- 6 am76°Fdew point 67°F
- 9 am82°Fdew point 67°F
- Noon86°Fdew point 66°F
- 3 pm86°Fdew point 66°F
- 6 pm82°Fdew point 67°F
- 9 pm79°Fdew point 67°F
NOAA hourly normals (local standard time) from Honolulu Intl Airport (5 mi away); average wind 12 mph; clear or few clouds in 33% of daytime hours, mostly cloudy or overcast in 25%.
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 mph10 of 31
- Hot dayshigh 90°F or more7 of 31
- Muggy daysdaily mean dew point 65°F or more25 of 31
- Wet daysat least 0.01 in of rain or melted snow7 of 31
- Notable rainat least 0.10 in1 of 31
- Freezing nightslow 32°F or below0 of 31
Average days per July, counted from daily records for each year 1991-2020.
Rain in July
Normal precipitation is 0.5 in; a dry July brings about 0.2 in and a wet one about 0.6 in (25th and 75th percentiles). Days with half an inch or more are rare.
How July varies from year to year
- Warmest July, 1991-20201995: average high 91°F
- Coolest July1998: average high 86°F
- Wettest July2016: 2.7 in
- Driest July2017: 0.02 in
- Highest reading94°F (July 15, 1995)
- Lowest reading69°F (July 26, 2016)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
July compared with June and August
| June | July | August | |
|---|---|---|---|
| Normal high | 87°F | 88°F | 89°F |
| Normal low | 74°F | 75°F | 76°F |
| Wet days | 6 | 7 | 6 |
| Comfortable days | 0 | 0 | 0 |
| Daylight | 13.4 h | 13.3 h | 12.8 h |
Highs change by +1°F from June and +1°F into August.
Nearby alternatives in July
- Cooler: Hilo, HI210 mi · high 83°F · 27 wet days
How Honolulu ranks in July
- Normal high177th warmest of 378 cities; 2nd of 7 in Hawaii
- Wet days134th driest of 378
- Comfortable days290th most of 340
What to pack for Honolulu in July
- Light, breathable clothing – highs near 88°F and about 25 muggy days
- A swimsuit – about 10 beach days
Heating and cooling
July has 0 heating degree days and 515 cooling degree days (base 65°F), 11% of the year's total heating and cooling demand.
Questions
How hot is Honolulu in July?
The normal high is 88°F and the normal low is 75°F. From 1991 to 2020 the hottest July reading was 94°F (July 15, 1995).
Does it rain a lot in Honolulu in July?
About 7 days in July have at least 0.01 in of precipitation, and the normal total is 0.5 in. The wettest July in 1991-2020 was in 2016 (2.7 in); the driest was in 2017 (0.02 in).
Is July a good time to visit Honolulu?
July ranks 7th of 12 months on our comfort score for Honolulu (50 out of 100). It has almost no comfortable days and about 7 days at 90°F or hotter. The best months are February, March and June.
Where the numbers come from
- Temperature, rain, frost dates, humidity and wind by hour and cloud cover: Honolulu Intl Airport (USW00022521), 4.7 mi WNW of the city center, 7 ft . NOAA normals and daily records, 1991-2020.
- Snowfall and snow depth: Beretania Pump Stn 705 (USC00510211), 0.3 mi E of the city center, 20 ft . NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Honolulu International Airport (911820-22521), 5.3 mi WNW of the city center, 6 ft . Hourly observations, 1991-2020.