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Concord, Massachusetts · Lake

Can you swim at Walden Pond today?

5.0FAIRPARTIAL

Fair · 5.0

Cold air temperature (9.7°C)

Updated

Heads up

  • Cold air temperature (9.7°C)
  • Wave height: 2.3m – Be cautious of strong waves

Swim brief

Conditions are mixed right now: 5.0 out of 10. There is no water temperature reading, so the score is capped at Fair until one arrives. Very rough waves around 7.5 ft, light wind at 9 mph. Air 49 °F, UV 0 (low).

Written from the readings below. Not a safety guarantee: follow lifeguards and posted signs.

The readings

  • Water temperature
    No reading
    No nearby NOAA station or NDBC buoy; Weather refresh deferred to preserve capacity for later today
    –
  • Water quality
    No reading
    No classification for this spot
    –
  • Waves
    7.5 ft
    NOAA NDBC Buoy 44013 · fetched
    Poor
  • Wind
    9 mph
    Open-Meteo Forecast (model) · fetched
    Glass
  • Air temperature
    49 °F
    Open-Meteo Forecast (model) · fetched
    Fair
  • UV index
    UV 0 · low
    Open-Meteo Forecast (model) · fetched
    –
  • Thunderstorms
    No reading
    No source reported a value
    –
  • Weather alerts
    No reading
    Weather provider does not report alerts
    Glass

Today

Loading the hourly forecast

Questions about Walden Pond

Is it safe to swim at Walden Pond today?

Swimmable can't tell you a spot is safe; conditions change fast and no score is a guarantee. Right now its Swim Score is 5.0 out of 10 (Fair), summarised from public weather, marine and water data. Check whether lifeguards are on duty and follow posted signs and flags.

What is the water temperature at Walden Pond?

There is no water temperature reading for Walden Pond right now. We show "No reading" rather than a guess.

How is the Swim Score calculated?

The score out of 10 combines water temperature, air temperature, UV, wind and weather, waves and weather alerts from public sources such as NOAA, NDBC and Open-Meteo. Missing readings are left out and shown as missing, never guessed.