Beach forecast for Kremastí
Today, Thursday, October 29, 2026 · local time (EET) · South Aegean, Greece Today, Thu, Oct 29 · EET- Swimming
- Calm · 1.0 ft
- Water
- 75 °F · nice
- Max UV
- 4 · SPF 30
- Wind
- 10 mph
Today, Thursday, October 29, it's a fair beach day in Kremastí (6/10). The best hours are from 2:00 pm to 5:00 pm: sunshine, little wind, a calm sea and water at 75 °F, though with cool air. The best day this week is Friday, October 30, at 7/10.
Beach forecast for the next 7 days
| Day | Rating | Best hours | Swimming | Water | UV |
|---|---|---|---|---|---|
| Today | 6Fair beach day | 2:00–5:00 pm | Calm · 1.0 ft | 75 °F | 4 |
| Fri 30 | 7Good beach day | 7:00 am–12:00 pm | Calm · 0.9 ft | 75 °F | 4 |
| Sat 31 | 2Not a beach day | No good window | Calm · 0.5 ft | 75 °F | 4 |
| Sun 1 | 0Not a beach day | No good window | Calm · 0.9 ft | 75 °F | 2 |
| Mon 2 | 0Not a beach day | No good window | Calm · 3.1 ft | 74 °F | 2 |
| Tue 3 | 6Fair beach day | 8:00–11:00 am | Calm · 1.6 ft | 74 °F | — |
| Wed 4 | 1Not a beach day | No good window | Use care · 2.8 ft | 74 °F | — |
Each rating comes from sun, temperature, rain, wind, waves, UV, water temperature and, where there is one, the tide.
Today in detail
1 good hour- Mostly sunny
- Onshore breeze (10 mph)
- Calm for swimming: 1.0 ft waves
- Water at 75 °F (nice)
- Feels like 66 °F: a bit cool
Today, hour by hour
- Swimming Calm · 1.0 ft
1.0 ft waves: calm for swimming. Low rip current risk. Always follow the lifeguard's flags.
- Water 75 °F
Nice for swimming.
- Sun & sunscreen UV 4 · SPF 30
Max UV 4 (moderate): SPF 30 sunscreen, reapplied every 2 hours.
- Wind 10 mph
Offshore breeze (10 mph). Watch floats and inflatables: offshore wind carries them out to sea.
- Tide & sand
Kremastí has almost no tide: the beach stays the same all day.
The best window, 2:00 pm to 5:00 pm, brings sunshine, little wind, a calm sea and water at 75 °F, though with cool air.
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 | Overcast | 62 °F | 6 mph | 1.2 ft | 0 |
| 8:00 am | 0 | Overcast | 61 °F | 9 mph | 1.2 ft | 0 |
| 9:00 am | 0 | Overcast | 61 °F | 10 mph | 1.1 ft | 1 |
| 10:00 am | 0 | Light showers | 63 °F | 8 mph | 1.1 ft | 3 |
| 11:00 am | 1 | Light showers | 64 °F | 5 mph | 1.0 ft | 3 |
| 12:00 pm | 3 | Overcast | 66 °F | 5 mph | 1.0 ft | 4 |
| 1:00 pm | 4 | Partly cloudy | 66 °F | 8 mph | 1.0 ft | 3 |
| 2:00 pm | 6 | Mainly clear | 66 °F | 9 mph | 1.0 ft | 2 |
| 3:00 pm | 7 | Mainly clear | 66 °F | 9 mph | 1.0 ft | 1 |
| 4:00 pm | 6 | Partly cloudy | 66 °F | 10 mph | 1.0 ft | 0 |
Beach hours only: from one hour after sunrise to half an hour before sunset.
Beaches near Kremastí
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Kieselstein 0.8 mi · NE
- Restrooms
- Parking
- Ixia Beach 4.7 mi · E
- Parking
Good water quality 2025 season, EEA
- Aghia Marina Beach 6.1 mi · E
- Restrooms
- Windy Beach 6.2 mi · NE
- Restrooms
- Showers
- Parking
Excellent water quality 2025 season, EEA
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). Bathing water quality: European Environment Agency (EEA), with data from the Greek Ministry of Environment and Energy.
Webcams near Kremastí
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 2.3 of 3, warmth 1 of 4, calm sea 1 of 1 and water 1 of 1; short window: the rating keeps 95%.
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 Kremastí
Is it a beach day in Kremastí today?
A fair beach day: 6/10. Best from 2:00 pm to 5:00 pm, with sunshine, little wind, a calm sea and water at 75 °F, though with cool air.
What are the swimming conditions in Kremastí today?
1.0 ft waves: calm for swimming. Low rip current risk. Always follow the lifeguard's flags.
How warm is the water in Kremastí?
About 75 °F today: nice. That's the sea surface temperature offshore; it can differ a little at the shoreline.
How much sun protection do I need in Kremastí today?
UV reaches 4 (moderate): SPF 30 sunscreen, sunglasses and a hat.
What about tomorrow? Will it be a beach day in Kremastí?
Tomorrow, Friday, October 30: a good beach day (7/10), best from 7:00 am to 12:00 pm.
What beaches are near Kremastí?
Kieselstein (0.8 mi), Ixia Beach (4.7 mi), Aghia Marina Beach (6.1 mi) and Windy Beach (6.2 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 Kremastí today
Learn more
Our own calculation, using the Open-Meteo forecast (ECMWF, NOAA GFS, Météo-France, Copernicus Marine and CAMS, CC BY 4.0) and the sun from astronomy-engine.