Beach forecast for Red Sand Beach
Today, Wednesday, October 28, 2026 · local time (HST) · Hawaii, United States Today, Wed, Oct 28 · HST- Swimming
- Use care · 4.6 ft
- Water
- 81 °F · warm
- Max UV
- 3 · SPF 30
- Low tide
- 10:53 am and 9:35 pm
Today, Wednesday, October 28, it's not a beach day in Red Sand Beach (0/10). The best day this week is Sunday, November 1, at 2/10.
Beach forecast for the next 7 days
| Day | Rating | Best hours | Swimming | Water | UV |
|---|---|---|---|---|---|
| Today | 0Not a beach day | Not today | Use care · 4.6 ft | 81 °F | 3 |
| Thu 29 | 0Not a beach day | No good window | Dangerous · 5.0 ft | 80 °F | 3 |
| Fri 30 | 0Not a beach day | No good window | Use care · 4.7 ft | 80 °F | 7 |
| Sat 31 | 1Not a beach day | No good window | Use care · 4.3 ft | 81 °F | 5 |
| Sun 1 | 2Not a beach day | No good window | Use care · 3.7 ft | 80 °F | 7 |
| Mon 2 | 0Not a beach day | No good window | Use care · 3.9 ft | 80 °F | — |
| Tue 3 | 1Not a beach day | No good window | Use care · 4.1 ft | 80 °F | — |
Each rating comes from sun, temperature, rain, wind, waves, UV, water temperature and, where there is one, the tide.
Today in detail
- Feels like 80 °F: pleasant
- Onshore breeze (11 mph)
- UV 3 (moderate): SPF 30 sunscreen
- Water at 81 °F (warm)
- Low tide at 10:53 am: more sand
- Cloudy (100% cloud cover)
Thunderstorms during beach hours: get out of the water and off the sand as soon as you hear thunder.
Today, hour by hour
- Swimming Use care · 4.6 ft
4.6 ft waves every 9 s: swim with care and stay where you can stand. High rip current risk. If you're caught in a rip current, don't swim against it: swim parallel to shore and wave for help. Always follow the lifeguard's flags.
- Water 81 °F
Warm: very pleasant.
- Sun & sunscreen UV 3 · SPF 30
Max UV 3 (moderate): SPF 30 sunscreen, reapplied every 2 hours.
- Wind 11 mph
Onshore breeze (11 mph).
- Tide & sand 10:53 am
Low tide at 10:53 am and 9:35 pm: that's when there's the most sand. High tide at 4:51 am and 3:12 pm.
We don't have data on jellyfish, sargassum or beach closures: ask the lifeguard or check with the local beach authority.
Today, hour by hour
| Time | Rating | Sky | Feels like | Wind | Waves | UV |
|---|---|---|---|---|---|---|
| 7:00 am | 0 | Rain | 79 °F | 10 mph | 3.7 ft | 0 |
| 8:00 am | 0 | Rain | 79 °F | 11 mph | 3.8 ft | 1 |
| 9:00 am | 0 | Rain | 79 °F | 11 mph | 3.9 ft | 2 |
| 10:00 am | 0 | Rain | 79 °F | 9 mph | 4.1 ft | 3 |
| 11:00 am | 0 | Rain | 79 °F | 8 mph | 4.3 ft | 3 |
| 12:00 pm | 0 | Rain | 80 °F | 7 mph | 4.3 ft | 2 |
| 1:00 pm | 0 | Rain | 80 °F | 7 mph | 4.5 ft | 1 |
| 2:00 pm | 0 | Rain | 80 °F | 7 mph | 4.5 ft | 1 |
| 3:00 pm | 0 | Light rain | 80 °F | 7 mph | 4.5 ft | 0 |
| 4:00 pm | 0 | Light rain | 79 °F | 7 mph | 4.6 ft | 0 |
Beach hours only: from one hour after sunrise to half an hour before sunset.
Beaches near Red Sand Beach
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Hana Beach Park 0.2 mi · NW
- Restrooms
- Showers
- Waikoloa Beach 0.7 mi · NW
- Parking
- Lehoʻula Beach 1.4 mi · S
- Koki Beach 1.7 mi · S
- Parking
- Hamoa beach 2.4 mi · S
- Blacksand Beach 2.9 mi · NW
- Restrooms
- Showers
- Parking
Water quality: check the official beach advisories for Hawaii (Hawaii Department of Health).
Named beaches within 6.2 mi, nearest first. Amenities from OpenStreetMap: some may be missing or out of date. View on OpenStreetMap · Add or fix on OpenStreetMap
Beaches and amenities: © OpenStreetMap contributors (ODbL).
Webcams near Red Sand Beach
Webcams provided by windy.com — add a webcam
How we rate a beach day
We rate every beach hour from 0 to 10 with simple, fixed rules:
- Adds: sunshine (up to 3 points, fewer with more clouds), warmth (up to 4, from the feels-like temperature; ideal between 81 °F and 91 °F), a calm sea (1), water at 70 °F or warmer (1; from 64 °F, half) and low or mid tide (1: more sand). Anything without data is left out and the rest is scaled to 10.
- Takes away: cold (feels-like below 64 °F, 1 to 4 points), rain (half a point if likely, up to 6 if it rains; thunderstorms, 8), wind from force 4, about 12 mph (1 to 6 points; half a point more if offshore, which blows inflatables out to sea, or onshore, which churns the water), waves (1 to swim with care, 4 if dangerous, 1 more for high rip current risk), very high UV (half a point; extreme, 1), water below 59 °F (1) and spring high tides (1: little sand left).
- Swimming: calm, use care (waves from 2.6 ft, or long swell) or dangerous (from 6.6 ft, or 4.9 ft with a long period), based on how much of the wave reaches this shore given the way it faces. In the U.S., today's and tomorrow's rip current risk comes from the National Weather Service surf zone forecast when it issues one; otherwise we estimate it from the waves.
- Best windows: runs of 2 to 5 hours rated 4 or more and close to the best hour, at least one hour apart.
- Day rating: the average of the best window; a 2-hour window keeps 85% of it and a 3-hour window 95%.
Today, in the best window: sun 0 of 3, warmth 3 of 4, calm sea 0 of 1, water 1 of 1 and tide 0.8 of 1; minus rain 8 and waves 1; short window: the rating keeps 85%.
It's a guide, not a guarantee: weather changes and every beach is different. Always follow the lifeguard's flags.
Questions about the beach in Red Sand Beach
Is it a beach day in Red Sand Beach today?
Not a beach day: 0/10. No good beach time today.
What are the swimming conditions in Red Sand Beach today?
4.6 ft waves every 9 s: swim with care and stay where you can stand. High rip current risk. If you're caught in a rip current, don't swim against it: swim parallel to shore and wave for help. Always follow the lifeguard's flags.
How warm is the water in Red Sand Beach?
About 81 °F today: warm. That's the sea surface temperature offshore; it can differ a little at the shoreline.
How much sun protection do I need in Red Sand Beach today?
UV reaches 3 (moderate): SPF 30 sunscreen, sunglasses and a hat.
When is low tide in Red Sand Beach?
Today low tide is at 10:53 am and 9:35 pm: that's when there's the most sand. High tide is at 4:51 am and 3:12 pm.
What about tomorrow? Will it be a beach day in Red Sand Beach?
Tomorrow, Thursday, October 29: not a beach day (0/10).
What beaches are near Red Sand Beach?
Hana Beach Park (0.2 mi), Waikoloa Beach (0.7 mi), Lehoʻula Beach (1.4 mi), Koki Beach (1.7 mi) and Hamoa beach (2.4 mi). See below for amenities and water quality.
Are there jellyfish or sargassum today?
We don't know: there's no open data on jellyfish, sargassum or closures for each beach. Ask the lifeguard, check the flags or the local beach authority's website.
How is the rating worked out?
From the hourly forecast: sun and clouds, feels-like temperature, rain, wind (and whether it blows onshore or offshore), waves and their period, UV, water temperature and, where there is one, the tide. Each factor adds or takes away a fixed number of points and the rating sums them up out of 10.
More about Red Sand Beach today
Learn more
Our own calculation, using the Open-Meteo forecast (ECMWF, NOAA GFS, Météo-France, Copernicus Marine and CAMS, CC BY 4.0), the tide from Hana (NOAA) and the sun from astronomy-engine. Slackwater database (https://github.com/openwatersio/slackwater-database)