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 (15 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. MERRIMACK R ESTUARY US OF SHAD CRK, SALISBURY, MAUSGS gauge · Massachusetts
    63°F17 mi16 hrs ago
  2. DANVERS RIVER AT BEVERLY PIER AT BEVERLY MAUSGS gauge · Massachusetts
    62°F17 mi16 hrs ago
  3. CAMBRIDGE RES., UNNAMED TRIB 2, NR LEXINGTON, MAUSGS gauge · Massachusetts · 0 ft³/s
    65°F20 mi15 hrs ago
  4. CAMBRIDGE RES., UNNAMED TRIB 1, NR LEXINGTON, MAUSGS gauge · Massachusetts
    63°F20 mi15 hrs ago
  5. CAMBRIDGE RES., UNNAMED TRIB 3, NR LEXINGTON, MAUSGS gauge · Massachusetts · 0 ft³/s
    66°F21 mi15 hrs ago
  6. HOBBS BRK AT TRAPELO RD AT LINCOLN, MAUSGS gauge · Massachusetts
    77°F21 mi15 hrs ago
  7. FRESH POND BUOY, NEAR INTAKE AT CAMBRIDGE, MAUSGS gauge · Massachusetts
    78°F23 mi15 hrs ago
  8. FRESH POND IN GATE HOUSE AT CAMBRIDGE, MAUSGS gauge · Massachusetts
    78°F23 mi15 hrs ago

Nearest swimmable spots

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

Canobie Lake4.7(121)

Canobie Lake

Lake · New Hampshire

Calm reservoir with an amusement park along its shores, also popular for kayaking & fishing.

8.8 mi from your location

Island Pond4.8(14)

Island Pond

Lake · New Hampshire
Camping nearby

A 532-acre pond with an island known for fishing, birdwatching, boating, water skiing & hiking.

12 mi from your location

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.

13 mi from your location

Mine Falls Park4.7(2,266)

Mine Falls Park

Park · Nashua, New Hampshire

Vast, natural riverfront oasis featuring forest trails, sports fields & outdoor activities.

19 mi from your location

Mystic Lakes4.8(41)

Mystic Lakes

Lake · Medford, Massachusetts

Lakes & adjacent state park for fishing, swimming, sailing & rowing in a scenic, natural setting.

19 mi from your location

The Park at River's Edge4.5(55)

The Park at River's Edge

Park · Medford, Massachusetts
Dog-friendly

Waterfront, landscaped green space featuring river views, lawns, paths & the Tufts crew boathouse.

21 mi from your location

Silver Lake State Park4.1(452)

Silver Lake State Park

State park · Hollis, New Hampshire
Camping nearby

80-acre lakefront retreat with a large beach offering swimming, boating & picnicking.

24 mi from your location

Massabesic Lake4.7(198)

Massabesic Lake

Lake · New Hampshire

Sizable lake & public water supply in a scenic setting with walking trails, fishing & boating.

24 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.