Summary | Weather Forecast | Diving Forecast | Model
Summary
Forecast for the next 7 days according to Reefranger:
Today, Blenheim Beach has challenging conditions for snorkeling and diving with 3.2m swells from the south and strong winds at 51.1 km/h, creating significant surface chop and reducing underwater visibility. Avoid water activities today and Thursday due to similar conditions. From Friday onward, conditions improve as swells decrease to 2.6m and winds reduce to 26.6 km/h. Saturday and beyond offer the best opportunities with swells dropping below 2m and manageable winds. Ocean temperatures around 20.8°C suggest a 3mm wetsuit for comfort, especially for extended water time. Aim for the weekend to enjoy optimal visibility and smoother seas.
Weather Forecast
Surface Conditions
Weather Conditions
Wednesday
12.5°
19.3°
Thursday
11.6°
18.8°
Friday
11.9°
19.8°
Saturday
11.5°
21.6°
Sunday
11.8°
22.3°
Monday
13°
23.3°
Tuesday
13°
23.9°
Note that local weather not directly impact diving scores. Still useful if you prefer to dive in the sun and without rain.
Diving Forecast
These are the reefranger ratings for the next 7 days. Ratings are available for the morning, low tide, and high tide. Tides are shown during the daytime (6am to 8pm). Ratings currently take into account Swell Height, Swell Direction, and location exposure based on swell direction versus the orientation of the site.
Scores reflect the ocean conditions in the 2 hours between 8am and 10am, and consider local heavy rainfall in the period prior.
3.2m 9sec
46.1 km/h S
3.2m 9sec
39.2 km/h SSW
3.2m 9sec
25.2 km/h SSW
1.7m 10sec
15.8 km/h W
1.0m 9sec
13.3 km/h NW
0.7m 7sec
16.9 km/h NNW
1.0m 7sec
19.4 km/h NW
Scores reflect the ocean conditions in the 2 hours after low tide, and consider local heavy rainfall in the period prior.
15:49
3.2m 9sec
49.7 km/h S
16:42
2.9m 9sec
39.6 km/h SSW
17:40
2.0m 11sec
21.2 km/h SSW
18:43
1.4m 10sec
11.5 km/h W
19:55
0.9m 8sec
19.8 km/h NW
09:17
0.7m 7sec
19.4 km/h NNW
10:07
1.0m 7sec
20.9 km/h NW
Scores reflect the ocean conditions in the 2 hours after hight tide, and consider local heavy rainfall in the period prior.
10:19
3.2m 9sec
50.8 km/h S
11:21
3.1m 9sec
44.3 km/h SSW
12:26
2.2m 11sec
24.8 km/h SSW
13:35
1.5m 10sec
15.1 km/h W
14:43
0.8m 8sec
22 km/h NW
15:43
0.9m 6sec
28.1 km/h NNW
16:34
1.0m 7sec
20.5 km/h NW
Model
Swell and wind impact diving suitability, but not all swells and winds are equal. A dive site may be protected from wind and swell by nearby geography. The model uses these exposure ratings to determine how much impact a wind and swell will have on the dive site, based on the origin of the winds or waves.