Hawaii (Big Island) Weather Forecast
Hawaii (Big Island) weather: 59°F, overcast. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Summary
Hawaii (Big Island) is an island in Hawaii. Hawaii (Big Island) is an island known for active volcanoes and black sand beaches.
Right now it is 59°F (15°C) in Hawaii (Big Island) with overcast. It feels like 53°F. Today runs from 51°F to 65°F. Chance of precipitation is 100%. Sightseeing conditions score 7.1/10 - good conditions.
The best time to visit Hawaii (Big Island) is June, July, September, October and December. The climate is temperate. March, April and August tend to be the least comfortable months. August is the warmest month with average highs near 64°F, while February is the coldest with lows near 43°F.
The closest major airport is Daniel K. Inouye International Airport (HNL), about 191 mi away. Nearby highlights include Hawaii Volcanoes National Park, Road to Hana, Haleakala National Park and Maui.
In plain terms. Today is slightly warmer than average for September. The forecast high of 65°F is 4.1°F above the 61°F typical for this month. The best window to be outside is roughly 8 AM to 11 AM, when temperature, rain chance and wind line up best. fishing is the strongest bet in Hawaii (Big Island) today at 9.3/10. Wet roads are likely; braking distances roughly double in heavy rain.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Active alerts for Hawaii (Big Island)
Derived from the forecast. No official alert feed is wired for this country yet.
Weather in Hawaii (Big Island) right now
Source: Open-Meteo. Updated 5:29 PM, Sep 20 local time.
See the Hawaii (Big Island) forecast by time range
Next 24 hours
Hour-by-hour temperature, precipitation chance and wind.
16-day forecast for Hawaii (Big Island)
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Sun, Sep 20 | ☁️ Overcast | 65° / 51° | 100% | 11 mph | 10 |
| Mon, Sep 21 | ⛅ Partly cloudy | 62° / 53° | 98% | 11 mph | 9 |
| Tue, Sep 22 | ☁️ Overcast | 62° / 53° | 100% | 11 mph | 8 |
| Wed, Sep 23 | ⛈️ Thunderstorm | 60° / 54° | 98% · 4,2 in | 10 mph | 6 |
| Thu, Sep 24 | ⛈️ Violent showers | 62° / 54° | 99% · 1,9 in | 14 mph | 7 |
| Fri, Sep 25 | 🌦️ Light showers | 65° / 57° | 98% · 0,4 in | 14 mph | 1 |
| Sat, Sep 26 | 🌦️ Drizzle | 59° / 55° | 100% · 0,3 in | 8 mph | 9 |
| Sun, Sep 27 | ☁️ Overcast | 61° / 53° | 92% | 9 mph | 9 |
| Mon, Sep 28 | 🌦️ Light drizzle | 56° / 50° | 78% · 0,0 in | 9 mph | 10 |
| Tue, Sep 29 | 🌦️ Light drizzle | 56° / 49° | 58% · 0,1 in | 10 mph | 7 |
| Wed, Sep 30 | 🌤️ Mainly clear | 55° / 47° | 63% | 10 mph | 7 |
| Thu, Oct 1 | 🌦️ Light drizzle | 55° / 46° | 71% · 0,0 in | 10 mph | 9 |
| Fri, Oct 2 | 🌦️ Light drizzle | 54° / 48° | 63% · 0,1 in | 9 mph | 9 |
| Sat, Oct 3 | 🌦️ Light drizzle | 55° / 49° | 66% · 0,0 in | 10 mph | 4 |
| Sun, Oct 4 | 🌦️ Light drizzle | 54° / 48° | 82% · 0,1 in | 11 mph | 7 |
| Mon, Oct 5 | 🌦️ Light showers | 55° / 49° | 49% · 0,4 in | 9 mph | 1 |
Climate in Hawaii (Big Island) month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Month | Avg high | Avg low | Rainfall | Rating |
|---|---|---|---|---|
| January | 58° | 44° | 1,7 in | ★★★★☆ |
| February | 57° | 43° | 1,7 in | ★★★★☆ |
| March | 57° | 44° | 4,6 in | ★★★☆☆ |
| April | 58° | 45° | 3,4 in | ★★★☆☆ |
| May | 59° | 46° | 2,9 in | ★★★★☆ |
| June | 61° | 48° | 2,9 in | ★★★★☆ |
| July | 63° | 49° | 2,1 in | ★★★★☆ |
| August | 64° | 50° | 5,7 in | ★★★☆☆ |
| September | 61° | 48° | 2,2 in | ★★★★☆ |
| October | 60° | 47° | 1,8 in | ★★★★☆ |
| November | 60° | 46° | 2,2 in | ★★★★☆ |
| December | 60° | 45° | 0,6 in | ★★★★☆ |
Climate type: Temperate. Source: Open-Meteo archive (ERA5).
Weather map for Hawaii (Big Island)
Animated model layers. Pick a layer to load it.
Animated layers by Windy. For pin-level detail and nearby places, see the interactive map below.
Air quality and pollen in Hawaii (Big Island)
Air quality: Open-Meteo (CAMS). US AQI scale.
Sun, twilight and moon
Golden and blue hour are the standard photographic approximation around sunrise and sunset.
Best time to visit Hawaii (Big Island)
Go in June, July, September, October and December. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: March, April and August - expect the least comfortable mix of heat, cold or rain.
Explore Hawaii (Big Island)
Every topic we hold for this place, and the same topic for the places around it.
Weather for related places
Frequently asked questions
Where is Hawaii (Big Island)?
Hawaii (Big Island) is an island in Hawaii. Its coordinates are 19.5429, -155.6659. It lies in North America.
What is the weather like in Hawaii (Big Island) right now?
It is currently 59°F (15°C) with overcast. Humidity is 49% and wind is 8 mph.
When is the best time to visit Hawaii (Big Island)?
June, July, September, October and December offer the most comfortable conditions in Hawaii (Big Island), which has a temperate climate. March, April and August are usually the hardest months for outdoor plans.
What time zone is Hawaii (Big Island) in?
Hawaii (Big Island) observes Pacific/Honolulu (UTC-10:00). The local time is 5:29 PM.
What is the nearest airport to Hawaii (Big Island)?
The closest airports are Daniel K. Inouye International Airport (HNL), 191 mi away.
What are the top things to do in Hawaii (Big Island)?
Popular options include Hawaii Volcanoes National Park, Road to Hana, Haleakala National Park, Maui, Waikiki Beach and Pearl Harbor National Memorial.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (islands) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Weather Service. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated September 20, 2026 at 5:29 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
