Waterlands
Swan River
USGS · 01305500
SWAN RIVER
USGS · 01305500LIVE

SWAN RIVER AT EAST PATCHOGUE NY

TOWN OF BROOKHAVEN, NY40.7672°N, -72.9938°W Updated 3 hr ago
FLOW RATE
10cfs
AIR TEMP
65°F
WIND
7mph N
FISH INDEX
81SCORE / 100
GREAT · 4 OF 5
Flow Rate Historical Avg
MEDIAN FLOW RATE · 30 DAY
10cfs 20.0% vs avg
Optimal band: 8–10 cfs
PERIOD HIGH
12cfs
PERIOD LOW
8cfs
RUNNABLE
93%
last 30 day in band
Precipitation History
Your History · SWAN RIVER AT EAST PATCHOGUE NY

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Weather Conditions
WEATHER CONDITIONS
TODAY
72°
65°
WED
77°
63°
THU
78°
69°
FRI
90°
68°
SAT
86°
66°
SUN
81°
64°
MON
80°
66°
TIME
WED
4
NOW
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
THU
12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
FRI
12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
SAT
12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
SUN
12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
TEMP
hourly forecast
63°
mild
63°
63°
63°
65°
68°
70°
72°
74°
76°
77°
77°
75°
74°
75°
74°
73°
71°
71°
71°
71°
70°
70°
70°
70°
69°
69°
69°
72°
74°
75°
76°
77°
77°
78°
78°
78°
78°
77°
77°
75°
73°
72°
73°
73°
73°
73°
73°
73°
72°
71°
71°
73°
76°
78°
81°
84°
86°
88°
89°
90°
90°
88°
72°
70°
69°
69°
68°
68°
68°
68°
67°
67°
67°
67°
66°
68°
71°
73°
77°
79°
81°
83°
84°
85°
86°
85°
82°
77°
74°
73°
71°
70°
70°
68°
67°
66°
65°
65°
64°
67°
71°
74°
77°
79°
80°
81°
81°
80°
79°
78°
76°
73°
71°
71°
71°
WIND
mph · gust · dir
8mph N
G 19 mph
8
G19
N
7
G18
N
8
G19
N
8
G18
N
9
G17
N
9
G16
N
8
G13
N
6
G9
NNE
4
G6
N
1
G3
SSW
7
SSW
11
G13
SSW
12
G14
SSW
10
G13
SSW
10
G13
SW
9
G12
SSW
8
G13
SSW
9
G14
SSW
10
G15
SSW
11
G17
SSW
12
G19
SSW
12
G20
SW
12
G21
SW
11
G22
SW
11
G21
SW
11
G20
SW
10
G19
SW
10
G21
SW
11
G20
SW
12
G18
SW
11
G15
SW
11
G15
SSW
12
G17
SSW
13
G17
SSW
12
G16
SSW
14
G18
SSW
15
G20
SSW
15
G22
SSW
14
G23
SSW
12
G22
SSW
10
G22
SSW
6
G21
SSW
7
G22
SSW
4
G17
SW
2
G8
WNW
1
G2
NE
2
G3
S
2
G3
SSW
2
G3
NW
2
G4
W
3
G6
WNW
4
G9
WNW
5
G12
NW
6
G11
WNW
7
G11
NW
7
G11
NW
6
G8
NW
5
G8
NW
6
G10
WNW
5
G10
W
6
G9
SW
7
G19
SSW
14
G26
NNW
10
G22
N
6
G12
N
5
G10
ENE
4
G10
NE
3
G7
E
3
G7
NE
2
G4
ENE
3
G6
N
4
G9
NNW
4
G10
NNW
4
G10
NW
5
G14
N
7
G20
N
9
G21
NNE
10
G16
NNE
10
G15
NE
8
G12
NE
7
G11
NE
6
G10
NNE
6
G9
NNE
6
G10
N
6
G9
NNE
4
G8
ENE
6
SE
8
G10
SE
7
G13
SE
6
G14
SE
5
G14
ESE
5
G13
ESE
4
G11
ESE
3
G8
E
3
G8
ESE
3
G7
E
3
G6
ENE
3
G6
ENE
3
G6
NE
4
G7
NE
4
G7
ENE
4
G6
E
5
G6
ESE
6
ESE
7
SE
8
SE
9
SE
9
SE
9
SE
8
G10
SSE
8
G12
SSE
7
G14
SSE
7
G15
SSE
6
G15
SSE
6
G15
SSE
PRECIP
chance %
1%
1%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
1%
1%
1%
1%
6%
6%
6%
6%
6%
6%
29%
29%
29%
29%
29%
29%
5%
5%
5%
5%
5%
5%
4%
4%
4%
4%
4%
4%
51%
51%
51%
51%
51%
51%
17%
17%
17%
17%
17%
17%
6%
6%
6%
6%
6%
6%
3%
3%
3%
3%
3%
3%
5%
5%
5%
5%
5%
5%
3%
3%
3%
3%
3%
3%
3%
3%
3%
3%
3%
3%
1%
1%
1%
1%
1%
1%
2%
2%
2%
2%
2%
2%
3%
3%
CLOUDS
cover %
9%
clear
9%
13%
3%
3%
4%
6%
6%
2%
1%
5%
4%
3%
2%
1%
1%
1%
1%
0%
1%
0%
1%
4%
1%
60%
100%
33%
4%
14%
100%
88%
94%
6%
6%
9%
12%
12%
100%
100%
78%
71%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
86%
44%
53%
100%
38%
6%
0%
75%
100%
6%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
0%
1%
0%
0%
13%
0%
0%
70%
62%
5%
9%
100%
0%
0%
0%
0%
52%
100%
0%
0%
0%
0%
0%
0%
0%
39%
68%
100%
10%
93%
100%
100%
100%
100%
100%
100%
91%
80%
74%
80%
91%
100%
100%
100%
PRESSURE
hPa · trend
1017
10171018101610151015101510131011100810091007101110111014101410171018102010201022
TemperatureWind / GustsPrecipitationCloud coverPressure
Nowscroll →
FISH INDEX
81
Temperature
Ideal
Wind
Light
Pressure
Stable
Moon Phase
Good
DAYLIGHT
SUNRISE
05:27 AM
SUNSET
08:25 PM
14H 58M OF DAYLIGHT
MOON PHASE
Last Quarter
42% illuminated

Station Location

40.7672, -72.9938
Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-08 00:00 UTC
Site #01305500·USGS

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