Hawaii (Big Island) Weather Forecast
Hawaii (Big Island) weather: 58°F, showers. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
14-day forecast for Hawaii (Big Island)
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Sun, Aug 23 | 🌧️ Showers | 63° / 53° | 100% · 0,5 in | 21 mph | 4 |
| Mon, Aug 24 | ⛈️ Thunderstorm | 59° / 54° | 100% · 2,5 in | 9 mph | 6 |
| Tue, Aug 25 | 🌦️ Drizzle | 62° / 51° | 100% · 0,1 in | 10 mph | 9 |
| Wed, Aug 26 | ☁️ Overcast | 60° / 51° | 100% | 10 mph | 10 |
| Thu, Aug 27 | 🌦️ Light drizzle | 56° / 52° | 97% · 0,1 in | 9 mph | 10 |
| Fri, Aug 28 | 🌧️ Heavy drizzle | 57° / 51° | 98% · 0,2 in | 11 mph | 8 |
| Sat, Aug 29 | 🌦️ Drizzle | 57° / 51° | 98% · 0,2 in | 11 mph | 8 |
| Sun, Aug 30 | 🌦️ Light drizzle | 59° / 53° | 94% · 0,1 in | 12 mph | 10 |
| Mon, Aug 31 | ⛅ Partly cloudy | 63° / 52° | 89% | 12 mph | 10 |
| Tue, Sep 1 | 🌤️ Mainly clear | 61° / 53° | 96% | 11 mph | 7 |
| Wed, Sep 2 | ☁️ Overcast | 58° / 52° | 98% | 11 mph | 7 |
| Thu, Sep 3 | ☁️ Overcast | 57° / 49° | 99% | 10 mph | 6 |
| Fri, Sep 4 | ☁️ Overcast | 57° / 48° | 92% | 12 mph | 9 |
| Sat, Sep 5 | 🌦️ Light drizzle | 61° / 49° | 86% · 0,1 in | 12 mph | 10 |
The two-week trend
Steady. The second week averages within a degree of the first, so no big change is signalled.
The window averages 59°F against a August normal of 64°F - 36°F below.
The next 7 days carry about 4.3 times a normal week's rain for August (3,6 in against 0,8 in).
What this means for Hawaii (Big Island)
Today is about average for August. The forecast high of 63°F is in line with the 64°F typical for this month.
A 100% chance means rain is expected over most of the area. Plan indoor alternatives. Around 0,5 in is forecast, which is enough to soak trails and slow traffic.
Visibility is down to 2,0 mi - use low beams and leave extra following distance. Gusts to 33 mph will push high-sided vehicles on exposed roads and bridges. Wet roads are likely; braking distances roughly double in heavy rain.
Northern Hemisphere, so peak summer falls in June to August.
The gap between the warmest and coldest month averages 39°F - an unusually even climate through the year.
What to pack, what to skip
- A packable rain shell - 7 of the next 7 days carry a real chance of rain
- Avoid exposed ridgelines, small boats and rooftop viewpoints while gusts stay above 33 mph.
- If your dates are flexible, avoid January, March and April - historically the least comfortable months here.
See the Hawaii (Big Island) forecast by time range
Hawaii (Big Island) weather - more answers
Explore Hawaii (Big Island)
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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 58°F (14°C) with showers. Humidity is 87% and wind is 4 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. January, March and April 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 12:13 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 August 24, 2026 at 12:13 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
