USGS · 01305500

SWAN RIVER

USGS · 01305500LIVE

SWAN RIVER AT EAST PATCHOGUE NY

TOWN OF BROOKHAVEN, NY40.7672°N, -72.9938°W Updated 40 min ago

FLOW RATE

9.86cfs

GAUGE HT

0.47ft

AIR TEMP

66°F

WIND

7mph N

FISH INDEX

81SCORE / 100

GREAT · 4 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 DAY

9.86cfs 5.5% vs avg

Optimal band: 9–13 cfs

PERIOD HIGH

14.6cfs

PERIOD LOW

9.86cfs

RUNNABLE

82%

last 1 day in band

Gauge Height

0.47ft

Precipitation History

Your History · SWAN RIVER AT EAST PATCHOGUE NY

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Weather Conditions

WEATHER CONDITIONS

TODAY

77°

63°

THU

78°

69°

FRI

90°

68°

SAT

86°

66°

SUN

81°

64°

MON

80°

66°

TUE

81°

65°

TIME

WED

NOW

THU

FRI

SAT

SUN

TEMP

hourly forecast

63°

mild

63°

65°

67°

69°

71°

73°

75°

77°

75°

74°

73°

74°

73°

71°

70°

69°

72°

74°

75°

76°

77°

78°

77°

75°

73°

72°

73°

72°

71°

73°

76°

78°

81°

84°

86°

88°

89°

90°

88°

72°

70°

69°

68°

67°

66°

68°

71°

73°

77°

79°

81°

83°

84°

85°

86°

85°

82°

77°

74°

73°

71°

70°

68°

67°

66°

65°

64°

67°

71°

74°

77°

79°

80°

81°

80°

79°

78°

76°

73°

71°

WIND

mph · gust · dir

6mph N

G 19 mph

G19

G18

G19

G16

G15

G14

NNE

NNW

SSW

G12

SSW

G14

SSW

G14

G13

G12

SSW

G13

SSW

G14

SSW

G15

SSW

G17

SSW

G19

SSW

G20

G21

G22

G21

G20

G19

G21

G20

G18

G15

SSW

G17

SSW

G17

SSW

G16

SSW

G18

SSW

G20

SSW

G22

SSW

G23

SSW

G22

SSW

G22

SSW

G21

SSW

G22

SSW

G17

WNW

SSW

WNW

G12

G11

WNW

G11

G10

WNW

G10

G19

SSW

G26

NNW

G22

G12

G10

ENE

G10

ENE

NNW

G10

NNW

G10

G14

G20

G21

NNE

G16

NNE

G15

G12

G11

G10

NNE

G10

NNE

ENE

G10

G13

G14

ESE

G13

ESE

G11

ESE

ENE

ESE

G10

SSE

G12

SSE

G14

SSE

G15

SSE

G15

SSE

G15

SSE

G13

SSE

PRECIP

chance %

29%

51%

17%

CLOUDS

cover %

clear

30%

13%

12%

60%

100%

33%

14%

100%

88%

94%

12%

100%

78%

71%

100%

86%

44%

53%

100%

38%

75%

100%

13%

70%

62%

100%

52%

100%

39%

68%

100%

10%

93%

100%

91%

80%

74%

80%

91%

100%

PRESSURE

hPa · trend

1017

TemperatureWind / GustsPrecipitationCloud coverPressure

Nowscroll →

FISH INDEX

Temperature

Ideal

Wind

Light

Pressure

Stable

Moon Phase

Good

DAYLIGHT

SUNRISE

05:28 AM

SUNSET

08:25 PM

14H 57M OF DAYLIGHT

MOON PHASE

Last Quarter

42% illuminated

Station Location

40.7672, -72.9938

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DATA · USGS · NOAA · NWSUPDATED 2026-07-08 04:15 UTC

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