Bore - surf spot statistics

Bore, Norway, offers surfable waves year-round, but conditions vary significantly by season. The best months for surfing are typically from September through February, when swell size and consistency are at their peak. During this period, mean swell sizes range from 1.4m to 2.1m, with ground swell playing a more significant role compared to wind swell—especially in January, February, and December, where ground swell contribution reaches 25-29%. However, wind conditions remain challenging, with an average of 86-88% unfavorable winds, limiting ideal surf days. The autumn months (September-November) provide a good balance of swell size (1.4-1.8m) and slightly lower wind swell dominance, though clean offshore winds remain rare. From March onwards, swell size decreases steadily, hitting the lowest point in June-August (0.9-1.0m), where wind swell dominates (73-78%) and ground swell nearly disappears (4-6%). Summer months (June-August) are the least favorable due to small waves and persistent onshore winds (90-91% bad conditions). While winter offers the biggest waves, surfers must contend with harsh winds and cold, making shoulder seasons like September-October a pragmatic choice for those seeking more manageable conditions.

December at Bore, Norway, offers surfable conditions with an average swell height of 1.9m and a solid period of 9.2s, indicating well-formed and relatively powerful waves. The swell is predominantly from the SW to WNW, with the highest frequency and size coming from the SW-WSW sector, where waves in the 1.5-2.5m+ range are common. This direction aligns favorably with the beach’s exposure, producing consistent, rideable surf. However, wind conditions are a limiting factor—only 14% of the time are winds ideal (likely light offshore or cross-offshore). Winds are strongest and most frequent from the S-SSW and W-NW directions, often blowing 20-50kph, which can create choppy or blown-out conditions. Surfers should watch for windows of lighter winds or offshore flow, particularly when a SW-WSW swell coincides with NE-E winds, which are rarer but more favorable. Winter storms can bring larger, unrulier swells (2.5m+) and challenging winds, but the spot handles size well for those comfortable in powerful conditions. Expect cold, demanding sessions with potential for quality waves if timing aligns with wind lulls or light offshore periods.