Skip to content
The Water Around Us
Sign In

Live · updated daily from USGS

Swimmable water near you

2,135 USGS sensors are reporting a live water temperature right now, the newest reading from August 21, 2026 (23 hrs ago).

Clear location
  • Cold · below 60°F · 375
  • Cool · 60–69°F · 594
  • Comfortable · 70–86°F · 938
  • Warm · above 86°F · 228
  • You

A map of the United States with one coloured dot per USGS sensor reporting a live water temperature. The readings are listed below.

Nearest live readings

The closest USGS sensors currently reporting a water temperature, nearest first.

  1. ISINGLASS R AT ROCHESTER NECK RD, NR DOVER, NHUSGS gauge · New Hampshire · 4 ft³/s
    64°F16 mi23 hrs ago
  2. MERRIMACK R ESTUARY US OF SHAD CRK, SALISBURY, MAUSGS gauge · Massachusetts
    63°F19 mi1 day ago
  3. LAMPREY RIVER AT LANGFORD ROAD, AT RAYMOND, NHUSGS gauge · New Hampshire · 7 ft³/s
    71°F25 mi23 hrs ago
  4. DANVERS RIVER AT BEVERLY PIER AT BEVERLY MAUSGS gauge · Massachusetts
    62°F38 mi1 day ago
  5. SOUTH BRANCH PISCATAQUOG RIVER NEAR GOFFSTOWN, NHUSGS gauge · New Hampshire · 15 ft³/s
    68°F47 mi23 hrs ago
  6. CAMBRIDGE RES., UNNAMED TRIB 2, NR LEXINGTON, MAUSGS gauge · Massachusetts · 0 ft³/s
    65°F53 mi23 hrs ago
  7. CAMBRIDGE RES., UNNAMED TRIB 1, NR LEXINGTON, MAUSGS gauge · Massachusetts
    63°F53 mi23 hrs ago
  8. FRESH POND IN GATE HOUSE AT CAMBRIDGE, MAUSGS gauge · Massachusetts
    78°F53 mi23 hrs ago

Nearest swimmable spots

Rated, photographed water destinations within 25 miles — pair one with the nearest sensor reading above before you go.

Country Pond3.6(26)

Country Pond

Lake · New Hampshire
Camping nearby

Trees encircle this large, scenic pond in a serene environment that draws boaters & fishermen.

22 mi from your location

Pawtuckaway Lake4.8(57)

Pawtuckaway Lake

Lake · Nottingham, New Hampshire
Camping nearby

Celebrated, 784-acre lake featuring swimming, boating, canoe rentals, mountain biking & picnicking.

23 mi from your location

About this map

Every pin is a live reading from a USGS real-time monitoring station, captured in a daily snapshot. Colours follow the site’s cold-water-safety thresholds and describe the water at that one sensor — usually a river or stream gauge, not a swim beach — so treat them as a guide to what the water is doing nearby, not a verdict on a specific spot. Readings are provisional and can be revised by the USGS. Your location only sorts this page: the coordinates appear in the address bar (rounded to about a mile) and are not saved to an account or our database.

Conditions are for general information only and can change quickly. Always judge the water in person and follow posted advisories and local guidance before swimming or paddling.