Sunny, high near 68°. No real rain risk. All-day beach window. Breezy, up to 17 mph.
forecastRain OutlookOpen-Meteo
tap an hourTop rain chance is just 1% — pack the sunscreen, not the umbrella.
Tide
0.3 ft · falling ↘
Next low tide
12:24 PM 0.2 ft
T−…
1.9 ft of drop from the 7:54 AM high; the wet sand is widest from about 11:24 AM.
Wind
14 mph
from the WSW
UV Index
Moderate
easy sunscreen day
Time to Burn
UV 4 · incl. sand glarefor unprotected fair skin (burns easily, tans a little). SPF 30 if you are out for more than an hour.
An estimate from the standard erythemal dose model, not a medical limit. Darker skin burns more slowly than this, people vary either way, and sunscreen only helps if you use enough of it and reapply.
Rip Current Riskestimated
todayCurrents strong enough to pull swimmers offshore. Stay near a lifeguard tower.
Caught in one? Don’t fight it. Swim parallel to the beach until you’re free, then angle back in.
Beach Flag
Yellow Flag
stay close to shore
estimated · trust the lifeguard
Stingers & Biters
modelled, not observedBased on wind, water temperature and humidity. Nobody publishes a live count, so this is what conditions favour today.
No-see-umsUnlikely
14 mph breeze around sunset should keep them down.
Water by Monthtypical
avg 2021–2024Warmest around August (67°), coolest around March (41°).
surf’s up (gently)
Tides are NOAA predictions (Coast Guard Beach station 8447386); temps, wind, UV, waves and water temp are live from Open-Meteo; rip current risk from the NWS surf-zone forecast. Flag status is estimated from wave height and wind, so always trust the lifeguard’s actual flag over this app.
The water at Coast Guard Beach is 54°F (12°C) today, about normal for November. For swimming it is cold: most swimmers want a wetsuit. Waves are 2–3 ft (moderate). The air is 60°F, feeling like 52°F, with breezy 14 mph winds from the WSW. The UV index reaches 4 (moderate).
The water holds steady around 54°F through Sun Nov 8.
The week ahead at Coast Guard Beach, day by day: the sky, the high, the strongest wind and the biggest waves, the UV peak and the daytime chance of rain, and the water temperature. The calmest day for a swim looks like Wed Nov 4.
| Day | Sky | High | Wind | Waves | UV | Rain | Water |
|---|---|---|---|---|---|---|---|
| Today | Cloudy | 68°F | 17 mph | 2 ft | 4 | 1% | 54°F |
| Tue Nov 3 | Cloudy | 68°F | 12 mph | 1.8 ft | 4 | 6% | 54°F |
| Wed Nov 4 | Cloudy | 68°F | 13 mph | 1.5 ft | 4 | 0% | 54°F |
| Thu Nov 5 | Cloudy | 66°F | 13 mph | 1.9 ft | 3 | 4% | 55°F |
| Fri Nov 6 | Showers | 65°F | 17 mph | 2.4 ft | 3 | 56% | 55°F |
| Sat Nov 7 | Rain | 60°F | 16 mph | 2.6 ft | 1 | 63% | 55°F |
| Sun Nov 8 | Cloudy | 53°F | 14 mph | 2.6 ft | 3 | 12% | 55°F |
High and low tides for the next 7 days, from NOAA’s predictions for tide station 8447386. Heights are in feet above the average low tide. The shell window is the last hour and a quarter of the ebb and the first three-quarters of the flood around the day’s lowest daylight low, when the most sand is bare; the lowest low of the week is marked.
| Day | Tide 1 | Tide 2 | Tide 3 | Tide 4 | Shell window |
|---|---|---|---|---|---|
| Today | High 1:32 AM 4.4 | Low 6:33 AM 0.7 | High 1:59 PM 4.6 | Low 9:40 PM 0.8 | 5:18 AM–7:18 AM |
| Tue Nov 3 | High 2:31 AM 4.4 | Low 7:58 AM 0.8 | High 2:57 PM 4.4 | Low 10:11 PM 0.7 | 6:43 AM–8:43 AM |
| Wed Nov 4 | High 3:31 AM 4.5 | Low 9:16 AM 0.7 | High 3:57 PM 4.4 | Low 9:55 PM 0.5 | 8:01 AM–10:01 AM |
| Thu Nov 5 | High 4:31 AM 4.7 | Low 10:12 AM 0.6 | High 4:57 PM 4.3 | Low 10:25 PM 0.3 | 8:57 AM–10:57 AM |
| Fri Nov 6 | High 5:28 AM 4.9 | Low 10:57 AM 0.4 | High 5:51 PM 4.3 | Low 11:00 PM 0.2 | 9:42 AM–11:42 AM |
| Sat Nov 7 | High 6:18 AM 5.1 | Low 11:38 AM 0.3 | High 6:38 PM 4.4 | Low 11:38 PM 0.1 | 10:23 AM–12:23 PM |
| Sun Nov 8 | High 7:01 AM 5.2 | Low 12:18 PM 0.2 | High 7:20 PM 4.3 | — | 11:03 AM–1:03 PM · best |
The average sea temperature at Coast Guard Beach for each month (2021–2024). The water is warmest in August (67°F) and coolest in March (41°F). It never averages 74°F, so most swimmers use a wetsuit.
| Month | Water °F | Water °C | For swimming |
|---|---|---|---|
| January | 44°F | 7°C | Cold |
| February | 41°F | 5°C | Cold |
| March | 41°F | 5°C | Cold |
| April | 44°F | 7°C | Cold |
| May | 51°F | 11°C | Cold |
| June | 60°F | 15°C | Cold |
| July | 65°F | 18°C | Chilly |
| August | 67°F | 19°C | Chilly |
| September | 66°F | 19°C | Chilly |
| October | 60°F | 15°C | Cold |
| November (now) | 53°F | 12°C | Cold |
| December | 47°F | 8°C | Cold |
Rip currents. If a current pulls you away from shore, don’t fight it: swim parallel to the beach until you are out of it, then swim back in. If you can’t, float and wave for help.
Sun. The UV index peaks at 4 today. Wear SPF 30 and reapply every two hours and after swimming.
Dogs. Whether dogs are allowed here depends on which part of the beach you are on.
Swim near a lifeguard when one is on duty, and follow the beach flags and posted signs. The Coast Guard Beach rules page covers dogs, alcohol, fires and more.
Under 1 ft is calm, good for small children and floating. 1–2 ft is small, fine for most swimmers. 2–4 ft is moderate: fun for bodyboarding, harder for weak swimmers. 4–6 ft is rough, and over 6 ft is dangerous for swimming. Today at Coast Guard Beach it’s moderate.
Under 8 mph is light and pleasant. 8–15 mph is breezy, good for kites and cooler on a hot day. 15–25 mph blows sand and whips up the water. Over 25 mph most people pack up. Today at Coast Guard Beach it’s breezy.
0–2 is low, 3–5 moderate, 6–7 high, 8–10 very high and 11 or more extreme. At 8 or more, fair skin can burn in under 20 minutes. The UV index is highest around midday even when it is cloudy.
Under 60°F is cold and most people want a wetsuit. 68–73°F is cool but swimmable. 74–79°F feels comfortable, and 80°F or more feels warm.
54°F (12°C), about normal for November.
At 54°F the water is cold: most swimmers want a wetsuit. Waves are 2–3 ft, which is moderate.
2–3 ft, which is moderate. The wind is 14 mph from the WSW.
High tide is at 1:32 AM and 1:59 PM, and low tide is at 6:33 AM and 9:40 PM. Times are NOAA predictions.
The UV index peaks at 4 (moderate). Wear SPF 30 and reapply every two hours and after swimming.
Highs run 53–68°F over the next 7 days. Rain is likely on Fri Nov 6 and Sat Nov 7. The calmest day for a swim looks like Wed Nov 4.
The water at Coast Guard Beach averages about 53°F (12°C) in November.
August is the warmest month, averaging 67°F. March is the coolest, at 41°F.
The water never averages 74°F here. It is warmest in August, at 67°F, so bring a wetsuit most of the year.
The usual water temperature in November at the nearest beaches. Tap one for its live conditions.
| Nauset Beach conditions | 7 mi | 53°F |
|---|---|---|
| Mayflower Beach conditions | 15 mi | 52°F |
| Herring Cove Beach conditions | 19 mi | 54°F |
| Race Point Beach conditions | 21 mi | 54°F |
| Nantasket Beach conditions | 56 mi | 50°F |
| Good Harbor Beach conditions | 64 mi | 52°F |
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