2013 Boston Light Swim
August 10, 2013, 9:00am EDT
Boston Harbor, Boston MA


Weather and Conditions During Race

Time (EDT)
Boat
Water
Temp
Readings at Logan Airport
Readings at NOAA Buoy 44013, 16 miles offshore

Air
Temp

Dew
Point
Wind
Pressure

Water
Temp

Air
Temp
Dew
Point
Wind
Wave
Height
Pressure
8:00am
66.4°F
73°F
62°F (69%)
12mph (W)
29.88in
64.8°F
68°F
68°F (100%)
7mph (SW)
1.3ft
29.80in
9:00am
66.4°F
76°F
59°F (56%)
15mph (W) Gust 21
29.89in
64.8°F
68°F
68°F (100%)
13mph (W) Gust 16
1.3ft
29.81in
10:00am
66.0°F
77°F
57°F (50%)
13mph (NW) Gust 22
29.89in
64.8°F
68°F
68°F (100%)
11mph (W) Gust 13
1.0ft
29.84in
11:00am
64.9°F
79°F
58°F (49%)
10mph (W)
29.88in
64.6°F
67°F
67°F (99%)
11mph (W) Gust 13
1.3ft
29.86in
12:00pm
64.4°F
81°F
57°F (44%)
14mph (W) Gust 21
29.87in
64.4°F
68°F
66°F (95%)
13mph (W) Gust 16
1.6ft
29.88in
1:00pm
64.5°F
82°F
56°F (41%)
14mph (W) Gust 25
29.88in
64.4°F
67°F
66°F (96%)
11mph (W) Gust 13
1.6ft
29.89in
2:00pm
64.4°F
82°F
57°F (43%)
16mph (W) Gust 21
29.88in
64.8°F
68°F
65°F (91%)
11mph (W) Gust 13
1.6ft
29.89in
Boat water temperature recorded using Airmar through-hull transducer/thermometer connected to Northstar chart plotter. Approx. 2 feet below waterline.

It was an extremely challenging day for swimming. There was a stiff westerly wind for the entire race, which the swimmers headed directly into. There was a 1-2 foot chop against the swimmers most of the way, particulraly after 11:00am. Once we passed under the Long Island Bridge, the combination of the chop from the headwind, and chop from other boat traffic made forward progress very difficult. Maura commented a few times that it felt like she was swimming on a treadmill.

Out of the water, the weather was beautiful and sunny. Lightly scattered clouds made for a brilliantly bright day with lots of sunlight. Pilots and crew on boats without shade were very dependent on their sunscreen.

Thanks to the Coast Guard Auxiliary that were on the water helping to establish a safety perimeter around the swimmers.

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