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September weather forecast in Hyannis
30 days
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
30 days
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun
Sunday
Mon
Monday
Tue
Tuesday
Wed
Wednesday
Thu
Thursday
Fri
Friday
Sat
Saturday
1
+21
+21
1 September, sun
+21
+21
Feels like
+20
760 mmHg
76%
6.6
m/s
SW
+21
1 September, Sunday. day, 21°; night, 21°; clear
2
+21
+20
2 September, mon
+21
+20
Feels like
+20
759 mmHg
79%
8
m/s
S
+21
2 September, Monday. day, 21°; night, 20°; partly cloudy
3
+21
+20
3 September, tue
+21
+20
Feels like
+18
760 mmHg
75%
7.8
m/s
W
+21
3 September, Tuesday. day, 21°; night, 20°; clear
4
+21
+20
4 September, wed
+21
+20
Feels like
+19
761 mmHg
80%
8
m/s
SW
+20
4 September, Wednesday. day, 21°; night, 20°; partly cloudy
5
+21
+20
5 September, thu
+21
+20
Feels like
+18
762 mmHg
79%
9.3
m/s
SW
+20
5 September, Thursday. day, 21°; night, 20°; rain
6
+21
+19
6 September, fri
+21
+19
Feels like
+19
761 mmHg
81%
8.5
m/s
S
+20
6 September, Friday. day, 21°; night, 19°; clear
7
+22
+20
7 September, sat
+22
+20
Feels like
+20
760 mmHg
80%
8.1
m/s
SW
+20
7 September, Saturday. day, 22°; night, 20°; clear
8
+20
+19
8 September, sun
+20
+19
Feels like
+18
760 mmHg
77%
7.8
m/s
NW
+20
8 September, Sunday. day, 20°; night, 19°; partly cloudy
9
+20
+20
9 September, mon
+20
+20
Feels like
+18
761 mmHg
77%
7.4
m/s
N
+20
9 September, Monday. day, 20°; night, 20°; rain
10
+20
+19
10 September, tue
+20
+19
Feels like
+17
761 mmHg
76%
8
m/s
NE
+20
10 September, Tuesday. day, 20°; night, 19°; clear
11
+20
+19
11 September, wed
+20
+19
Feels like
+17
761 mmHg
76%
7.5
m/s
SW
+20
11 September, Wednesday. day, 20°; night, 19°; partly cloudy
12
+20
+18
12 September, thu
+20
+18
Feels like
+18
760 mmHg
77%
6.8
m/s
S
+20
12 September, Thursday. day, 20°; night, 18°; clear
13
+20
+19
13 September, fri
+20
+19
Feels like
+18
760 mmHg
76%
7.6
m/s
SW
+20
13 September, Friday. day, 20°; night, 19°; clear
14
+20
+19
14 September, sat
+20
+19
Feels like
+19
761 mmHg
75%
7.1
m/s
SW
+20
14 September, Saturday. day, 20°; night, 19°; partly cloudy
15
+19
+18
15 September, sun
+19
+18
Feels like
+17
763 mmHg
72%
8.1
m/s
NW
+20
15 September, Sunday. day, 19°; night, 18°; partly cloudy
16
+18
+17
16 September, mon
+18
+17
Feels like
+15
764 mmHg
72%
7
m/s
N
+19
16 September, Monday. day, 18°; night, 17°; rain
17
+19
+17
17 September, tue
+19
+17
Feels like
+17
764 mmHg
73%
6
m/s
SW
+19
17 September, Tuesday. day, 19°; night, 17°; clear
18
+19
+18
18 September, wed
+19
+18
Feels like
+15
763 mmHg
75%
9.1
m/s
NE
+19
18 September, Wednesday. day, 19°; night, 18°; clear
19
+19
+18
19 September, thu
+19
+18
Feels like
+15
762 mmHg
75%
9.6
m/s
N
+19
19 September, Thursday. day, 19°; night, 18°; clear
20
+19
+18
20 September, fri
+19
+18
Feels like
+15
763 mmHg
77%
8.6
m/s
NE
+19
20 September, Friday. day, 19°; night, 18°; clear
21
+19
+18
21 September, sat
+19
+18
Feels like
+17
761 mmHg
80%
8.3
m/s
NW
+19
21 September, Saturday. day, 19°; night, 18°; clear
22
+18
+17
22 September, sun
+18
+17
Feels like
+16
763 mmHg
79%
7.5
m/s
N
+19
22 September, Sunday. day, 18°; night, 17°; clear
23
+19
+18
23 September, mon
+19
+18
Feels like
+17
763 mmHg
77%
7.5
m/s
N
+19
23 September, Monday. day, 19°; night, 18°; clear
24
+17
+17
24 September, tue
+17
+17
Feels like
+14
764 mmHg
73%
6.9
m/s
NE
+19
24 September, Tuesday. day, 17°; night, 17°; partly cloudy
25
+17
+16
25 September, wed
+17
+16
Feels like
+14
765 mmHg
74%
7.4
m/s
NE
+19
25 September, Wednesday. day, 17°; night, 16°; clear
26
+19
+17
26 September, thu
+19
+17
Feels like
+17
763 mmHg
81%
6.8
m/s
SE
+18
26 September, Thursday. day, 19°; night, 17°; partly cloudy
27
+20
+19
27 September, fri
+20
+19
Feels like
+19
760 mmHg
82%
7.5
m/s
S
+18
27 September, Friday. day, 20°; night, 19°; rain
28
+18
+18
28 September, sat
+18
+18
Feels like
+16
759 mmHg
82%
8.3
m/s
SE
+18
28 September, Saturday. day, 18°; night, 18°; clear
29
+18
+18
29 September, sun
+18
+18
Feels like
+15
759 mmHg
85%
8.6
m/s
NE
+18
29 September, Sunday. day, 18°; night, 18°; clear
30
+17
+16
30 September, mon
+17
+16
Feels like
+13
759 mmHg
81%
8.6
m/s
NE
+18
30 September, Monday. day, 17°; night, 16°; rain
1
+17
+16
1 October, tue
+17
+16
Feels like
+12
760 mmHg
77%
10.1
m/s
N
+18
1 October, Tuesday. day, 17°; night, 16°; rain
2
+17
+16
2 October, wed
+17
+16
Feels like
+12
762 mmHg
75%
8.8
m/s
NE
+18
2 October, Wednesday. day, 17°; night, 16°; overcast
3
+17
+16
3 October, thu
+17
+16
Feels like
+13
761 mmHg
81%
8.6
m/s
NE
+17
3 October, Thursday. day, 17°; night, 16°; clear
4
+17
+16
4 October, fri
+17
+16
Feels like
+12
761 mmHg
75%
8.8
m/s
N
+17
4 October, Friday. day, 17°; night, 16°; clear
5
+16
+15
5 October, sat
+16
+15
Feels like
+13
762 mmHg
75%
7.4
m/s
N
+17
5 October, Saturday. day, 16°; night, 15°; partly cloudy
Average data for 10 years
Hyannis September
17
sunny days
5
days with precipitation
8
cloudy days
17 sunny days; 5 days with precipitation; 8 cloudy days;
77
%
air humidity
6
m/s
Wind
W
79
mm of precipitation
(9% of annual average)
+19
°C
Water temperature
air humidity 77%; 79 millimeters of precipitation (9% of annual average); Wind westerly 6 Meters per second; Water temperature +19°
Weather graphs for September
Temperature
Water temperature
Precipitation chance, %
Humidity, %
Wind, m/s
Pressure, mmHg
SW
S
W
SW
SW
S
SW
NW
N
NE
SW
S
SW
SW
NW
N
SW
NE
N
NE
NW
N
N
NE
NE
SE
S
SE
NE
NE
1
Average data for 10 years
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Daytime temperature
Night-time temperature
Cities near you
New York
Boston
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Nantucket
New Haven
Mamaroneck
Jamaica
Concord
Armonk
Cities with similar weather in September
San Francisco
Podgorica
Toronto
Vancouver
Seattle
Montreal
Albena
San Sebastian
Santander
