Boating forecast for Firth Of Thames

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  1. Extremely useful for viewing the forecast at a glance. You can quickly tell when the conditions are likely to better for boating and fishing.
  2. The summaries are useful to assist in understanding the weather patterns as well as planning your day and trips.
  3. The arrows show the direction of the wind. The direction of the wind is from the origin e.g. an easterly wind blows to the west. The dotted line is gust speed of the wind. For most spots you want the wind to be light (0 - 10 kts) for ocean conditions to be comfortable.
  4. The Sea height is the total wave height which includes both swell and chop. This is the most critical variable when looking at this forecast since a big sea height could be hazardous to boats or fishing off rocks etc. Swell refers to the height of the swell. The smaller the better. Chop refers to the height of the ocean chop. The less chop, the more comfortable conditions will be.
  5. The greater the swell period, the more comfortable the conditions are likely to be. It is believed sea sickness is triggered by a swell period around 5-6 seconds. However, the ocean chop can also cause sea sickness, so be aware of that too, especially if sea direction is considerably different to swell direction.
  6. Swell direction is represented by the origin of the swell. A westerly swell is moving to the east.
  7. Sea direction is represented by the origin of the chop. If there is not much chop this is not such a factor. However, you should check this variable if there is substantial chop, since if the swell direction is opposing the sea direction and swell and chop height are over 1 m, conditions could be rough.
  8. SwellMap presents tides as LAT (Lowest Astronomical Tide), which is the height above the lowest tidal water level

Forecast updated at 16:14 Thursday 17 April (Pacific/Auckland local time)

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Wind Gusts
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Swell Sea Chop
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Period
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Sea dir
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Tides LAT
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Forecast updated at 16:14 Thursday 17 April (Pacific/Auckland local time)

Slide the table to view all forecast details.
Thu 17 AprRating Summary Sea Swell Chop Period Swell dir Sea dir Wind Gusts
mmms°°ktskts
3h61.00.11.05NWNEW:814
9h41.60.41.54NENENE:3752
15h32.10.72.07NWNEN:2231
21h21.30.41.26NWNNE:1726
Low: 02:20 am (0.46 m); High: 08:10 am (2.85 m); Low: 02:40 pm (0.35 m); High: 08:30 pm (2.93 m);
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Fri 18 AprRating Summary Sea Swell Chop Period Swell dir Sea dir Wind Gusts
mmms°°ktskts
3h21.20.41.26NWNNE:1723
9h21.10.41.16NWNN:1519
15h21.00.31.06NWNN:1318
21h20.90.30.95NWWNE:1420
Low: 03:00 am (0.41 m); High: 08:50 am (2.89 m); Low: 03:20 pm (0.31 m); High: 09:20 pm (2.97 m);
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Sat 19 AprRating Summary Sea Swell Chop Period Swell dir Sea dir Wind Gusts
mmms°°ktskts
3h30.70.20.75NWNN:1216
9h30.80.20.74NWNN:1114
15h51.10.11.15NNS:00
21h50.80.10.86NWNWNW:913
Low: 03:50 am (0.39 m); High: 09:30 am (2.9 m); Low: 04:10 pm (0.3 m); High: 10:00 pm (2.98 m);
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Sun 20 AprRating Summary Sea Swell Chop Period Swell dir Sea dir Wind Gusts
mmms°°ktskts
3h40.70.10.75NNWNW:1214
9h40.80.10.84NNWNW:912
15h30.70.10.74NWNWN:1619
21h21.10.11.15NWNN:2127
Low: 04:40 am (0.4 m); High: 10:20 am (2.86 m); Low: 05:00 pm (0.33 m); High: 10:50 pm (2.96 m);
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Mon 21 AprRating Summary Sea Swell Chop Period Swell dir Sea dir Wind Gusts
mmms°°ktskts
3h21.30.21.36NWNWN:2025
9h20.80.20.86NWWW:1923
15h20.80.10.85NWW:1721
21h20.60.10.65NWWW:1317
Low: 05:30 am (0.42 m); High: 11:20 am (2.8 m); Low: 05:50 pm (0.37 m); High: 11:50 pm (2.9 m);
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Tue 22 AprRating Summary Sea Swell Chop Period Swell dir Sea dir Wind Gusts
mmms°°ktskts
3h30.40.10.45NWWSW:1215
9h30.30.10.313NWWW:1216
15h30.30.10.313NWWSW:1114
21h30.30.10.313NWSWSW:1215
Low: 06:20 am (0.46 m); High: 12:10 pm (2.74 m); Low: 06:50 pm (0.43 m);
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Wed 23 AprRating Summary Sea Swell Chop Period Swell dir Sea dir Wind Gusts
mmms°°ktskts
3h40.30.10.212NWSWSW:1013
9h50.20.10.112NWSWSW:710
15h60.30.10.212NWSWSW:67

Forecast updated at 16:14 Thursday 17 April (Pacific/Auckland local time)

Current sea temperature

Firth Of Thames sea temperature: 20°C

Sunrise and sunset for today

SunriseSunset
06:4817:47

Moon phases for the next month

Tue 22 AprTue 29 AprWed 7 MayThu 15 May
Last Quarter New Moon First Quarter Full Moon

Rating information for Boating

This rating is a guide to determine how pleasant the boating conditions are likely to be. But this should not be treated as a substitute for using all available sources of information for the purpose of safety.
10A green rating between 7 and 10 indicates calm waters, based on little or no wind, and swell height less than a metre.
6An orange rating between 4 and 6 indicates average boating conditions, possibly affected by light-fair winds, and a swell height around 1-2 metres.
1A red rating between 1 and 3 suggests poor and possibly dangerous conditions such as strong winds and a big swell height 2-3 metres plus.
?No rating available.

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