Thacher Island - Rockport, Massachusetts
42° 38.21' N - 070° 34.52' W - 20 feet
Friday July 17 15:40:00 2026
Station
Time: 15:40
Date: 17 Jul 2026
Latitude: 42° 38.21' N
Longitude: 070° 34.52' W
Elevation: 20 feet
Daylight: 14:57
Sun
Start civil twilight: 04:45
Sunrise: 05:19
Transit: 12:48
Sunset: 20:16
End civil twilight: 20:51
Azimuth: 252.6°
Altitude: 48.3°
Right ascension: 117.2°
Declination: 21.1°
Equinox: 09/22/26 20:05:09
Solstice: 12/21/26 15:49:59
Moon
Rise: 09:07
Transit: 15:49
Set: 22:18
Azimuth: 176.1°
Altitude: 53.1°
Right ascension: 162.4°
Declination: 5.8°
Full moon: 07/29/26 10:35:37
New moon: 08/12/26 13:36:39
Phase: Waxing Crescent
15% full
Temperature (°F)
Current: 79.9
Day Average: 70.7
Day High: 80.4 at 13:58
Day Low: 63.4 at 05:23
Week Average: 73.7
Week High: 87.0 at 14:26:43 Thursday
Week Low: 63.4 at 05:23:48 Friday
Month Average: 74.7
Month High: 95.8 on 07/03/26
Month Low: 63.4 on 07/17/26
Year Average: 55.3
Year High: 95.8 on 07/03/26
Year Low: 14.4 on 01/27/26
All Time Average: 50.9
All Time High: 95.8 on 07/03/26
All Time Low: -8.8 on 02/04/23
Humidity (%)
Current: 38
Day Average: 64
Day High: 80 at 03:04
Day Low: 38 at 15:37
Week Average: 69
Week High: 99 at 19:51:53 Tuesday
Week Low: 38 at 15:37:55 Friday
Month Average: 73
Month High: 99 on 07/14/26
Month Low: 38 on 07/17/26
Year Average: 75
Year High: 100 on 04/27/26
Year Low: 1 on 04/25/26
All Time Average: 79
All Time High: 100 on 08/23/15
All Time Low: 1 on 06/11/19
Dew Point (°F)
Current: 52.0
Day Average: 57.4
Day High: 60.9 at 00:00
Day Low: 51.9 at 15:38
Week Average: 62.4
Week High: 77.4 at 19:52:09 Tuesday
Week Low: 51.9 at 15:38:31 Friday
Month Average: 62.4
Month High: 77.4 on 07/14/26
Month Low: 51.9 on 07/17/26
Year Average: 47.2
Year High: 77.4 on 07/14/26
Year Low: -42.9 on 05/01/26
All Time Average: 43.0
All Time High: 86.1 on 07/11/23
All Time Low: -47.3 on 06/13/19
Wind Chill (°F)
Current: 79.9
Day Low: 63.4 at 05:23
Week Low: 63.4 at 05:23:48 Friday
Month Low: 63.4 on 07/17/26
Year Low: -6.3 on 01/27/26
All Time Low: -42.4 on 02/04/23
Heat Index (°F)
Current: 79.4
Day High: 80.9 at 13:56
Week High: 92.5 at 17:36:51 Tuesday
Month High: 101.9 on 07/03/26
Year High: 101.9 on 07/03/26
All Time High: 112.3 on 07/11/23
Barometer ( inHg)
Current: 29.897
Day Average: 29.873
Day High: 29.914 at 12:09
Day Low: 29.798 at 00:01
Week Average: 29.753
Week High: 29.914 at 12:09:03 Friday
Week Low: 29.610 at 15:56:03 Thursday
Month Average: 29.753
Month High: 29.914 on 07/17/26
Month Low: 29.610 on 07/16/26
Year Average: 29.753
Year High: 29.914 on 07/17/26
Year Low: 29.610 on 07/16/26
All Time Average: 29.885
All Time High: 30.822 on 11/25/15
All Time Low: 27.272 on 07/11/23
Wind ( mph)
Current: 14 NW
Day Average: 12 NW
Day High: 27 at 11:38
Week Average: 12 W
Week High: 41 at 17:04:47 Thursday
Month Average: 11 WSW
Month High: 41 on 07/07/26
Year Average: 12 W
Year High: 93 on 03/03/26
All Time Average: 11 NW
All Time High: 105 on 12/10/24
Rain ( in - in/hr)
Rate: 0.00
Day: 0.00
Day High Rate: 0.00 at 00:00
Week: 0.14
Week High Rate: 655.35 at 00:00:02 Sunday
Month: 0.14
Month High Rate: 655.35 on 07/01/26
Year: 107.18
Year High Rate: 655.35 on 01/01/26
All Time High Rate: 655.35 on 02/23/21