Summary | Weather Forecast | Diving Forecast | Model
Summary
Forecast for the next 7 days according to Reefranger:
Today, Blenheim Beach has high swells of 2.9 meters and strong southern winds at 42.5 km/h, creating rough and choppy conditions unsuitable for snorkeling or diving. Ocean temperatures are warm at 22.1°C, needing only a light wetsuit. The weekend shows improvement, with Saturday’s slightly reduced swells of 2.1 meters and calmer winds making it more favorable. However, Sunday stands out with swells dropping to 1.4 meters and even lighter eastern winds, offering the best day for clear and relaxed underwater exploration. Avoid today and consider Sunday for the best snorkeling or diving experience.
Weather Forecast
Surface Conditions
Weather Conditions
Thursday
17.8°
24.1°
Friday
16.5°
24.7°
Saturday
17.1°
25.7°
Sunday
17.2°
26.1°
Monday
19.5°
29.8°
Tuesday
20.1°
29.4°
Wednesday
17.1°
22.8°
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.
2.1m 8sec
28.8 km/h SSE
2.1m 7sec
20.9 km/h SW
2.1m 7sec
11.9 km/h WNW
0.9m 8sec
17.3 km/h SW
1.4m 6sec
24.8 km/h NNE
1.8m 8sec
29.9 km/h SSW
1.7m 7sec
30.6 km/h S
Scores reflect the ocean conditions in the 2 hours after low tide, and consider local heavy rainfall in the period prior.
10:33
2.0m 8sec
23.8 km/h SSE
11:47
2.4m 7sec
33.8 km/h SW
12:48
1.4m 7sec
27.7 km/h WNW
13:38
1.0m 8sec
28.1 km/h SW
14:20
2.1m 7sec
36 km/h NNE
15:00
2.2m 7sec
35.3 km/h SSW
Rating not found (location:9, day:6, period:low)
1.7m 7sec
30.6 km/h S
Scores reflect the ocean conditions in the 2 hours after hight tide, and consider local heavy rainfall in the period prior.
16:03
1.8m 8sec
18.7 km/h SSE
17:24
2.4m 8sec
28.8 km/h SW
18:34
1.3m 8sec
27.7 km/h WNW
19:28
1.3m 5sec
24.5 km/h SW
07:22
1.4m 6sec
24.8 km/h NNE
08:06
1.8m 8sec
29.9 km/h SSW
Rating not found (location:9, day:6, period:high)
1.7m 7sec
30.6 km/h S
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.