Today's Ristna Hiiumaa Island sea temperature is 17.5 °C
(Normal for this time of year (within 0.2° of average))
| Mean: | 17.7 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Range: | 14.0 °C to 20.7 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statistics for 07 Aug (1981–2005) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Today, many surfers would wear a summer wetsuit.
The water temperature (17 °C) at Ristna Hiiumaa Island is relatively warm. If the sun does come out as forecast, it should feel warm enough to surf in a summer wetsuit. Effective air temperature of 16 °C.
 Map of current Estonia Surface Water Temperatures (based on measurements from oceanographic satellites) |  Map of current Estonia Sea Water Temperature Anomalies (compared with long term averages at this time of year) |
click thumbnails to expand
Below is a graph of Historical Sea Surface Temperature for Ristna Hiiumaa Island. This has been derived from analysis of two decades of oceanographic satellite measurements of nearby open water. We have calculated the average water temperature variation around the year as well as the extremes that have been observed on each date.
All of the graphs for the surf breaks presented on Surf-Forecast.com are on the same scale to enable comparison between locations around the world.
Ristna Hiiumaa Island sea temperatures peak in the range 15 to 22°C (59 to 72°F) on around the 30th of July and are at their coldest on about the 17th of February, in the range -0 to 3°C (32 to 37°F). The maximum seasonal sea temperatures at Ristna Hiiumaa Island at the tail of July lend themselves to a 4/3mm wetsuit or a 3/2mm suit and 3mm neoprene boots. The coldest sea temperatures at Ristna Hiiumaa Island mean that you will need a flexible 6/5/4mm wetsuit or a well fitting 5/4mm wetsuit with gloves and 5mm neoprene booties and a hood to surf here in the middle of February.
Actual sea surface water temperatures close to shore at Ristna Hiiumaa Island can vary by several degrees compared with these open water averages. This is especially true after heavy rain, close to river mouths or after long periods of strong offshore winds. Offshore winds cause colder deep water to replace surface water that has been warmed by the sun. Air temperature, wind-chill and sunshine should also be considered before deciding on the kind of wetsuit needed to stay warm when surfing at Ristna Hiiumaa Island. Refer to our detailed weather forecasts for this information.
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