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Shaded-relief atlas plate of Honolulu, Hawaii: rivers, roads, the city limits and where the water drains.
HAWAII · HONOLULU COUNTY

Honolulu

344,967 people, 170 ft above sea level in Honolulu County.

170 ftElevation, city center
344,967People, 2024 estimate
61 sq miLand area
Mostly clear 80°
Mostly clear now Dew point 68° · E 13 mph · high 81°
City of Honolulu River Interstate 5 miles
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The Honolulu plate. Relief from Copernicus GLO-30; rivers and lakes from USGS NHD; watersheds from the USGS Watershed Boundary Dataset; roads and city limits from Census TIGER 2024.

MILE1
TODAY

Today in Honolulu

NWS forecast and National Blend of Models · updated 8:00 PM HST
RIGHT NOW Daniel K Inouye International Airport (PHNL) · 8:53 PM
Mostly clear
80° Mostly clear Feels like 83° · high of 81° near 9 PM
WindE 13 mphno gusts
Humidity67%rising to 74% by morning
Pressure29.96 in ↗rising quickly
Visibility10 mihaze-free
CloudsA few cloudsbases near 6,000 ft
UV index11 by 12 PMextreme; stay in the shade
Dew point 68° · Muggyabout the same for three days
DryComfortableStickyMuggyOppressive
NEXT RAIN
Partly cloudy
Tomorrow, about 10 PMin about 24 hours · 50% chance · showers
LIKELY AMOUNT0–0.04 inmost likely 0; 1 in 10 over 0.9
LAST RAINSept. 270.04 in · 1 dry day
ALERTS & OUTLOOKS
No watches or warnings for Honolulu County
NWS Honolulu and the Storm Prediction Center · checked 9:37 PM
SUN & MOON
↑ 6:21 AM6:22 PM ↓
12 h 0 m of daylight, 1 minute less than yesterday
Waning gibbous, 92% lit. The Harvest Moon was full Saturday.
AIR & POLLEN
20
GOODAir quality index · coarse particles
No pollen source yet.

The next three days, hour by hour

Sky: clear, cloudy, night Rain likely National Blend of Models
MONDAY, SEPT. 28
TUESDAY, SEPT. 29
WEDNESDAY, SEPT. 30
THURSDAY, OCT. 1
9p
Mid
3a
6a
9a
Noon
3p
6p
9p
Mid
3a
6a
9a
Noon
3p
6p
9p
Mid
3a
6a
9a
Noon
3p
6p
partly cloudy night
partly cloudy night
mostly cloudy night
partly cloudy day
partly cloudy day
partly cloudy day
partly cloudy day
partly cloudy night
showers night
showers night
showers night
showers day
showers day
showers day
showers day
showers night
showers night
showers night
showers night
showers day
showers day
showers day
mostly sunny
mostly clear night
TEMPERATURE °F
81°
78°
89°
79°
86°
78°
87°
CHANCE OF RAIN
55% · 0.94 in Thursday overnight 50%
WIND, MPH
8
7
6
5
8
8
9
9
10
11
11
12
13
14
12
8
6
5
5
5
9
11
11
7
HOW IT FEELS · DEW POINT
Muggy: dew points 67 to 71°

The next seven days, and how sure we are

Forecast, with the range 8 in 10 ensemble members agree on Normal, about 88° / 75°
MON Sept. 28 Partly cloudy Partly cloudy
81° 78°
0% rain — ENE 8 A
TUE Sept. 29 Chance of showers; hot Chance of showers; hot
91° 78°
40% rain — ESE 8 A
WED Sept. 30 Chance of showers Chance of showers
88° 78°
50% rain up to 1.8″ SSE 13 A
THU Oct. 1 Chance of showers Chance of showers
89° 78°
60% rain up to 0.6″ SE 12 A
FRI Oct. 2 Mostly sunny Mostly sunny
89° 77°
20% rain — SE 12 A
SAT Oct. 3 Mostly sunny Mostly sunny
89° 77°
10% rain — E 14 A
SUN Oct. 4 Mostly sunny Mostly sunny
88° 77°
10% rain — ENE 17, gusts 25 A
How sure are we? AModels agree: highs within 4° BSome spread: within 8° CWide spread: check back
Range from the National Blend of Models percentiles · graded on Forecast Scores
Map of a 72-hour back-trajectory: the air now over Honolulu was over the open Pacific three days ago.
AIR MAIL

Where today’s air came from

The air arriving over Honolulu at 5,000 feet was over the open Pacific three days ago, about 1,150 miles back along its path. Air off the water carries moisture, which is why it feels humid. Traced hour by hour through GFS analyses of the 850 hPa wind.

THIS WEEK IN 1975 Sept. 29, 1975

The coldest this week has been

66° on Sept. 29, 1975, the coldest reading for this week of the year since 1940. Next is 67° in 1981.

67°
66°
19811975
Source: NOAA RCC-ACIS, the Honolulu Area threaded record since 1940.
MILE7
ON THE NETWORK

Around Honolulu on the Forecast Network

Neighboring plates

East Honolulu HI · 9 MI 9 miles east Pearl City HI · 9 MI 9 miles northwest
FORECASTCITY
Atlas plate of Honolulu, Hawaii. Explore the plate
HAWAII · HONOLULU

Honolulu

344,967 people, 170 ft above sea level in Honolulu County.

170 ftElevation
344,967People
61 sq miLand
Mostly clear 80°
Mostly clearDew point 68°
1

Today in Honolulu

NEXT 15 HOURS
Now mostly clear night 81° 0%
12a partly cloudy night 80° 0%
3a partly cloudy night 79° 0%
6a partly cloudy day 78° 0%
9a partly cloudy day 84° 2%
12p partly cloudy day 89° 2%
Partly cloudy
NEXT RAINTomorrow about 10 PM · 50%
→
Mon0%
Partly cloudy Partly cloudy
78
81
A
Tue40%
Chance of showers; hot Chance of showers; hot
78
91
A
Wed50%
Chance of showers Chance of showers
78
88
A
Thu60%
Chance of showers Chance of showers
78
89
A
Fri20%
Mostly sunny Mostly sunny
77
89
A
Sat10%
Mostly sunny Mostly sunny
77
89
A
Sun10%
Mostly sunny Mostly sunny
77
88
A
Letters show how sure the forecast is: A, models agree; B, some spread; C, check back. Sample data.
THIS WEEK IN 1975 · SEPT. 29, 1975

66°, the coldest this week of the year has been since 1940.