Thachers Beach
Massachusetts · United States
Rating right now
An open N-facing sand beach on the James Bay near Massachusetts, Thachers Beach works on W–NE groundswell; SE–S winds offshore, with conditions most reliable april–october.
Today's surf at Thachers Beach
Updated 23:08 spot time
Thachers Beach surf report for Wednesday 30 Sept: waves 1 ft–1.5 ft knee to waist high, 1 ft E swell at 8.1 s. Wind up to 8 mph SSW. Water 61°F. Best surf window around 2:00 AM — fun (2.5/5) with 5 mph NNW wind.
Snapshot refreshed hourly — the live hourly forecast below updates in real time.
10-day forecast
Local time · updates hourly
Wave height & period
Wind
| Time | Rating | Waves | Swell | Wind | Air |
|---|---|---|---|---|---|
Water temperature by month
This month: ~15.1°C (59.2°F) on average
Jan
5°C
41°F · 2.8–7.1°C
Feb
3.3°C
37.9°F · 2.2–5°C
Mar
3.9°C
39°F · 1–6.5°C
Apr
6.6°C
43.9°F · 3.7–10.8°C
May
10.6°C
51.1°F · 7.9–15.5°C
Jun
15.4°C
59.7°F · 9.7–18.3°C
Jul
19.6°C
67.3°F · 16.3–23.1°C
Aug
20.9°C
69.6°F · 17.7–23.6°C
Sep
19.2°C
66.6°F · 15.9–22.1°C
Oct
15.1°C
59.2°F · 11.5–18.5°C
Nov
10.8°C
51.4°F · 8.4–14.8°C
Dec
7.5°C
45.5°F · 4.9–9.8°C
25-year monthly averages from the NOAA OISST satellite record — typical range min–max, not a live reading.
Know before you go
Best swell
W–NE
Best wind
SE–S
Break type
Beach break
Best season
April–October
Safety: Friendly by surf standards, but rip currents and drop-in etiquette still apply. Shifting sandbars create moving rip currents — learn to spot them and use them to get out back.
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