Greenhill Surf Break

Lat Long: 41.36° N 71.61° W

Greenhill 48 hour detailed Surf Forecast

Issued: 7 am 21 Sep 2026 (local time)

Forecast update in  hr  min

Today's Greenhill sea temperature is
21.0°C
2.2° 

Greenhill surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Greenhill today (21 Sep):

  • Morning surf: Morning surf (21 Sep, local time) - 1ft (0.3m), 9s period with SE swell.
  • Afternoon surf: Afternoon surf (21 Sep, local time) - 1.5ft (0.4m), 9s period with SE swell.
  • Evening surf: Evening surf (21 Sep, local time) - 1.5ft (0.4m), 8s period with SE swell.

The current surf forecast for Greenhill at 1PM is: 0.4m 9s primary swell from a Southeast direction and 0.1m 5s secondary swell from a Southwest direction (forecast issued at 07:00am September 21). An open ocean swell of 1.0m 5s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (EDT) & DateWave HeightWave Period
Morning (21 Sep)1ft (0.3m)9s
Afternoon (21 Sep)1.5ft (0.4m)9s
Evening (21 Sep)1.5ft (0.4m)8s

Table - waves today at Greenhill. (Swell directed towards the surf break)


Short Range Forecast

Light rain (total 2mm), mostly falling on Mon morning. Very mild (max 18°C on Mon afternoon, min 12°C on Tue night). Mainly fresh winds.

Monday
21
Tuesday
22
Wednesday
23
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
Rating
(10 max)
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.4
SE
9
0.3
SE
9
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.4
SE
8
0.4
SE
8
1.3
E
7
1
ESE
7
1.3
E
7
1.7
E
7
1.7
E
7
1.7
E
6
1.6
E
6
1.7
E
7
1.6
E
8
1.8
E
6
2.1
E
6
2.3
E
7
2.4
E
9
1.8
ESE
10
1.8
ESE
10
1.9
ESE
10
Wave Graph
Metric surfscale
Energy kJ
19
12
19
19
19
17
24
150
96
158
255
278
228
0
298
282
0
332
481
881
596
648
755
Wind (km/h)
25
N
30
NNE
25
NNE
25
NE
25
NE
20
NE
20
ENE
25
NE
25
NE
30
NE
30
NE
30
NE
30
NE
30
NE
25
NE
25
NE
30
NE
30
NE
35
NE
35
NE
35
NE
35
NE
35
ENE
Wind State
off
off
off
off
cross-off
cross-off
cross-off
off
off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
4:23AM0.88m
4:51PM1.05m
5:18AM0.95m
5:39PM1.10m
6:04AM1.04m
6:21PM1.15m
Low Tide
10:22AM0.39m
11:17PM0.36m
11:19AM0.33m
11:58PM0.29m
12:08PM0.27m
light rain
light rain
light rain
part cloud
part cloud
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
part cloud
cloud
part cloud
cloud
clear
cloud
cloud
part cloud
cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:31
6:33
6:33
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:45
6:44
6:42
 mm
1
1
1
Temp °C
14
13
14
18
18
15
15
15
14
14
14
14
14
13
12
12
12
13
15
16
15
13
14
Feels °C
10
8
10
14
13
11
11
11
10
9
8
8
8
7
7
6
6
7
8
8
8
6
7
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Greenhill surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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