11-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Morning
Rain showers
25°
Feels like 33°
Wind↑ NE 38 km/h
Gusts49 km/h
Humidity 80 %
💧 0.2 mm
Evening
Rain showers
25°
Feels like 34°
Wind↑ NE 40 km/h
Gusts52 km/h
Humidity 87 %
💧 0.5 mm
⚡ storm
12-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Morning
Rain showers
25°
Feels like 34°
Wind↑ NE 42 km/h
Gusts50 km/h
Humidity 84 %
💧 0.5 mm
Evening
Mainly clear
24°
Feels like 32°
Wind↑ NE 36 km/h
Gusts45 km/h
Humidity 79 %
💧 0.1 mm
13-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Morning
Clear sky
25°
Feels like 32°
Wind↑ ENE 38 km/h
Gusts44 km/h
Humidity 72 %
Evening
Partly cloudy
24°
Feels like 32°
Wind↑ ENE 39 km/h
Gusts45 km/h
Humidity 78 %
14-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Honolulu forecast in charts · next 7 days
The week ahead: highs and lows
≈ A week close to the usual temperatures
Highs Lows Usual for the season (1991–2020 average)
Hourly detail
Temperature (°C) Rain (mm) Wind (km/h)
Honolulu climate: what a normal year looks like
The hottest stretch is August, when afternoons average 29 °C; the coldest is February, when nights average 20 °C.
A normal year brings roughly 490 mm of rain — less than 87% of the towns of 20,000+ people we compared it with.
From 13 h 25 min of daylight in late June to 10 h 50 min in late December.
Forecast highs for the coming week average 26 °C, 2 °C cooler than a normal October (28 °C).
30-year averages (1991–2020)
Month
Typical high
Typical low
Rainfall
Jan
24 °C
20 °C
47 mm
Feb
24 °C
20 °C
44 mm
Mar
25 °C
20 °C
61 mm
Apr
26 °C
21 °C
33 mm
May
26 °C
21 °C
36 mm
Jun
27 °C
22 °C
31 mm
Jul
28 °C
23 °C
30 mm
Aug
29 °C
23 °C
30 mm
Sep
29 °C
23 °C
29 mm
Oct
28 °C
23 °C
40 mm
Nov
26 °C
22 °C
53 mm
Dec
25 °C
21 °C
54 mm
Whole year
26 °C
22 °C
490 mm
Source: our own processing of the ERA5 reanalysis (Copernicus/ECMWF) for 21.31° N, 157.86° W, 1991–2020. ERA5 averages over a 0.25° grid (about 25 km): hills, a coastline or the heat of the city itself can shift local values by a degree or two.
Air you breathe in Honolulu: pollution and pollen
1/6
Good
European Air Quality Index (EAQI), from Copernicus CAMS
PM2.53µg/m³
PM104µg/m³
Copernicus CAMS model, updated several times a day.
Rain radar around Honolulu
Rain observed over the last two hours by official weather radars around Honolulu, followed by the radar forecast for the next hour where the weather service provides one.
Rain radarLast two hours, then forecast where available · drag the timeline
No open weather radar covers Honolulu yet: the map shows our hour-by-hour rain forecast (ICON, GFS).
Moon over Honolulu
Waning gibbous
87 % illuminated · 18.3 days
Rise 04:05 Set 18:25
Fri30/1079%
Sat31/1069%
Sun1/1159%
Mon2/1149%Last quarter
Tue3/1138%
Wed4/1128%
Thu5/1119%
Fri6/1112%
Sat7/116%
Sun8/112%
Mon9/110%
Tue10/111%New moon
Moonrise and moonset in local time (Pacific/Honolulu); phase and lit fraction from a synodic calculation.
Look up a past day in Honolulu
Curious about the weather in Honolulu on a given day? Choose a date: we read it from the ERA5 reanalysis (ECMWF / Copernicus C3S), which runs until about a week ago.
Honolulu weather at a glance
This page gathers everything about the weather in Honolulu, Hawaii: conditions now, the forecast for each part of the day and the trend for the coming week. At the moment the sky is “rain showers”, it is 25 °C (feels like 35 °C) and the wind blows at 25 km/h.
Expected range today: 24 °C to 25 °C and around 11 mm of rain; keep an eye on thunderstorms. The forecast comes from the AtmoAtlas engine, which combines ECMWF-AIFS, NOAA GFS and DWD ICON, adjusts cloud cover with METAR reports and uses convective energy (CAPE) to flag storms.
Honolulu weather data for developers
Use the Honolulu forecast in your own website or app: one JSON call returns weather, air quality, tides and sun and moon times. The free key needs no card.
