14-Night Cruise on Seven Seas MarinerBritish Isles Discovery Reykjavik To London (Southampton) - Weather

Join RSSC Cruises's Seven Seas Mariner for a 14-night voyage on the British Isles Discovery Reykjavik To London (Southampton) route, setting out from Reykjavik, Iceland on July 17, 2026. It's a classic Northern Europe cruise. Travelers sailing in July can generally expect cold, short days. Ports of call include Reykjavik, Iceland, Heimaey, Westman Islands, Seydisfjordur, Iceland, with 9 more along the way. The forecasts below break the weather down port by port.

1. Day 1 — Friday, Jul 17, 2026 — Reykjavik, Iceland

   Reykjavik, Iceland is a scheduled port of call on day 1 of the 14-night British Isles Discovery Reykjavik To London (Southampton) cruise on Seven Seas Mariner. Expected weather: partially cloudy with highs near 53°F.

2. Day 2 — Saturday, Jul 18, 2026 — Heimaey, Westman Islands

   Heimaey, Westman Islands is a scheduled port of call on day 2 of the 14-night British Isles Discovery Reykjavik To London (Southampton) cruise on Seven Seas Mariner. Expected weather: partially cloudy with highs near 54°F.

3. Day 3 — Sunday, Jul 19, 2026 — Seydisfjordur, Iceland

   Seydisfjordur, Iceland is a scheduled port of call on day 3 of the 14-night British Isles Discovery Reykjavik To London (Southampton) cruise on Seven Seas Mariner. Expected weather: partially cloudy with highs near 68°F.

4. Day 4 — Wednesday, Jul 22, 2026 — Kirkwall, Scotland

   Kirkwall, Scotland is a scheduled port of call on day 4 of the 14-night British Isles Discovery Reykjavik To London (Southampton) cruise on Seven Seas Mariner. Expected weather: partially cloudy with highs near 57°F.

5. Day 5 — Thursday, Jul 23, 2026 — Stornoway, Isle of Lewis

   Stornoway, Isle of Lewis is a scheduled port of call on day 5 of the 14-night British Isles Discovery Reykjavik To London (Southampton) cruise on Seven Seas Mariner. Expected weather: partially cloudy with highs near 68°F.

6. Day 6 — Friday, Jul 24, 2026 — Killybegs, Ireland

   Killybegs, Ireland is a scheduled port of call on day 6 of the 14-night British Isles Discovery Reykjavik To London (Southampton) cruise on Seven Seas Mariner. Expected weather: overcast with highs near 75°F.

7. Day 7 — Saturday, Jul 25, 2026 — Douglas, Isle Of Man

   Douglas, Isle Of Man is a scheduled port of call on day 7 of the 14-night British Isles Discovery Reykjavik To London (Southampton) cruise on Seven Seas Mariner. Expected weather: partially cloudy with highs near 73°F.

8. Day 8 — Sunday, Jul 26, 2026 — Dublin, Ireland

   Dublin, Ireland is a scheduled port of call on day 8 of the 14-night British Isles Discovery Reykjavik To London (Southampton) cruise on Seven Seas Mariner. Expected weather: rain, partially cloudy with highs near 71°F.

9. Day 9 — Monday, Jul 27, 2026 — Liverpool, England

   Liverpool, England is a scheduled port of call on day 9 of the 14-night British Isles Discovery Reykjavik To London (Southampton) cruise on Seven Seas Mariner. Expected weather: partially cloudy with highs near 75°F.

10. Day 10 — Tuesday, Jul 28, 2026 — Holyhead, Wales

    Holyhead, Wales is a scheduled port of call on day 10 of the 14-night British Isles Discovery Reykjavik To London (Southampton) cruise on Seven Seas Mariner. Expected weather: partially cloudy with highs near 61°F.

11. Day 11 — Wednesday, Jul 29, 2026 — Waterford, Ireland

    Waterford, Ireland is a scheduled port of call on day 11 of the 14-night British Isles Discovery Reykjavik To London (Southampton) cruise on Seven Seas Mariner. Expected weather: partially cloudy with highs near 68°F.

12. Day 12 — Friday, Jul 31, 2026 — Southampton, England

    Southampton, England is a scheduled port of call on day 12 of the 14-night British Isles Discovery Reykjavik To London (Southampton) cruise on Seven Seas Mariner. Expected weather: partially cloudy with highs near 71°F.