| Point Forecast: 18NM NNE Portsmouth NH 43.31N 70.57W (Elev. 3 m) |
Last Update: 2:26 am EDT Jul 21, 2026 |
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| Date | 07/21 | 07/22 | ||||||||||||||||||||||
| Hour (EDT) | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 |
| Surface Wind (km/h) | 5 | 8 | 8 | 8 | 10 | 10 | 13 | 14 | 16 | 21 | 21 | 23 | 23 | 23 | 21 | 21 | 18 | 16 | 14 | 14 | 13 | 13 | 11 | 11 |
| Wind Dir | S | S | SSE | S | S | S | S | S | S | SSE | SSE | SSE | SSE | SSE | SSE | SE | SSE | SSE | SSE | SSE | S | S | S | S |
| Gust | ||||||||||||||||||||||||
| Significant Wave Height (m) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Wave Period (sec) | 0 | 0 | 0 | 0 | 0 | 12 | 12 | 12 | 12 | 8 | 7 | 4 | 6 | 4 | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 5 | 5 |
| Wave Direction (°) | ||||||||||||||||||||||||
| Date | 07/23 | |||||||||||||||||||||||
| Hour (EDT) | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 |
| Surface Wind (km/h) | 11 | 13 | 11 | 11 | 11 | 13 | 13 | 13 | 14 | 14 | 16 | 16 | 16 | 14 | 14 | 13 | 11 | 10 | 10 | 10 | 8 | 8 | 8 | 8 |
| Wind Dir | SSW | SSW | SSW | SSW | SSW | SSW | S | SSW | SSW | SSW | S | S | S | SSW | SSW | SSW | SW | SW | WSW | W | W | W | W | W |
| Gust | ||||||||||||||||||||||||
| Significant Wave Height (m) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Wave Period (sec) | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 |
| Wave Direction (°) | ||||||||||||||||||||||||


