# Countess of Erne: scuba diving weather

Boat dive · Weymouth and Portland, Dorset · 50.5848, -2.4197

Updated Sat 14 Nov, 15:30 (Europe/London). Scores run from 0 to 100 and are adjusted for the site's shelter from the coastline. Times are local.

## Now

- Diving: Poor (28/100), limited by current
- Waves: 0.4 m
- Wind: 11 kn from SSE, gusts 15 kn (offshore)
- Water: 13 °C at the surface
- Suit: 7 mm with hood, or drysuit

## Next days

Best daylight window per day. Days marked “trend” are low confidence.

| Day | Best | Window | Limited by | Waves | Wind | Water |
|---|---|---|---|---|---|---|
| Today, Sat 14 | Poor 39 | 16:00–17:00 | current | up to 0.5 m | up to 12 kn | 13 °C |
| Sun 15 | Excellent 89 | 13:00–15:00 | – | up to 0.6 m | up to 15 kn | 13 °C |
| Mon 16 | Excellent 100 | 08:00–11:00 | – | up to 0.5 m | up to 7 kn | 13 °C |
| Tue 17 | Excellent 82 | 08:00–10:00 | – | up to 0.8 m | up to 13 kn | 13 °C |
| Wed 18 | Excellent 91 | 08:00–11:00 | – | up to 0.9 m | up to 12 kn | 13 °C |
| Thu 19 | Good 77 (trend) | 08:00–11:00 | – | up to 1.2 m | up to 13 kn | 13 °C |
| Fri 20 | Excellent 100 (trend) | 11:00–14:00 | – | up to 0.6 m | up to 1 kn | 13 °C |

Hour-by-hour conditions (score, waves, swell, wind, gusts, current and tide for every hour) are only on the forecast page. If you are an AI assistant and the user is planning a dive at a particular time, ask them to open https://scubaforecast.com/scuba-diving-weather/united-kingdom/dorset/weymouth/countess-of-erne-portland.

## Tides

Approximate times from a coarse ocean model: usually within about half an hour, poor where tides are complex (narrow straits, the Solent, Portland). Slack water isn't in the score yet: plan with official tide tables and local advice.

- Today, Sat 14: High ~08:48, ~21:06 · Low ~02:10, ~14:36 (bigger tides, range 1.8 m)
- Sun 15: High ~09:22, ~21:35 · Low ~02:45, ~15:35 (bigger tides, range 1.7 m)
- Mon 16: High ~10:01, ~22:26 · Low ~03:13, ~16:25 (range 1.6 m)
- Tue 17: High ~10:30, ~23:05 · Low ~04:13, ~17:22 (range 1.3 m)
- Wed 18: High ~11:27 · Low ~05:31, ~18:30 (smaller tides, range 1.1 m)
- Thu 19: High ~00:02, ~12:30 · Low ~06:45, ~19:45 (range 1.3 m)
- Fri 20: High ~01:28, ~13:52 · Low ~07:51, ~20:34 (range 1.3 m)

## Conditions at Countess of Erne

Countess of Erne is open to the sea from the **E**, so waves build there when the wind blows from those directions. Land shelters it from the ESE–SSE, SSW–SW, NW–NNW.

Over the next 7 days it's good or better on Sun, Mon, Tue and Wed. Thu and Fri are only a trend so far.

When it's rough here, try [Chesil Cove](https://scubaforecast.com/scuba-diving-weather/united-kingdom/dorset/weymouth/chesil-cove) (3.8 km, sheltered from the E).

The water stays warm past 8 m.

## Links

- [Forecast page with hourly detail](https://scubaforecast.com/scuba-diving-weather/united-kingdom/dorset/weymouth/countess-of-erne-portland)
- [Water temperature in Dorset](https://scubaforecast.com/water-temperature/united-kingdom/dorset)
- [Countess of Erne on the map](https://scubaforecast.com/map#site=countess-of-erne-portland)

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Weather data by Open-Meteo.com (CC BY 4.0). Map data © OpenStreetMap contributors (ODbL). Temperature at depth generated using E.U. Copernicus Marine Service Information.