Dorset, United Kingdom
Jun · 68% rideablePortland Harbour
What it's actually like
Portland Harbour is a large harbour enclosed by breakwaters at Portland, on the Dorset coast. The harbour authority describes mostly flat water with prevailing south-westerly winds, and says the harbour can be used in every wind direction and at every tide. It is a working port as well: ships use its entrances and the commercial dockyard is closed to leisure users.
The Weymouth and Portland National Sailing Academy (WPNSA) at Osprey Quay is the main launch, and the harbour hosts slalom, freestyle, speed and foil racing.
In every one of them at least seven days in ten clear 12 knots for three daylight hours or more, and December is the pick, with November close behind, both at more than eight in ten.
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Your month
When it's good
12 kt+ for 3+ daylight hours · kite
June · 68%. 20 rideable days in 30, 6.6 hours a day over 12 kt. Come.
At a glance
Is it for you?
Geek analysis
June in the record
68% of days clear 12 kt for three daylight hours or more.
In June the wind most often sits at 12 to 15 kt (24% of daylight hours) and is over 12 kt at 9am and from 3pm to 6pm on at least half the days. See both charts in the full report
No weather station near enough to check these figures against.
June on the record
The month's own figures, not the year's average.
Take it with you
The full Portland Harbour report
Seven sections over six pages, built from the same record as this page. A PDF you can read on the plane.
When it gets busy
Crowds
Weymouth Speed Week runs from 3 to 9 October 2026 and a UK Windsurfing Association national racing round follows on 10 and 11 October, both at WPNSA. WindChaser has no crowd count for the harbour yet.
On the water
What June usually does
June sits outside the best months here. 68% of days clear 12 kt for three daylight hours or more.
Your playground
Launches & safety
Conditions change. Check local rules and conditions before you ride.
- Launch
- Hazard
- Parking
- School
- Stay
- Webcam
- Approximate
Local intel
Getting there & on the ground
Stay, schools & kit
Who works this beach
All 5 stays near Portland Harbour on one page