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.

In April, Bore offers surfable conditions with an average swell height of 1.1m and a decent period of 8.7s, providing some energy for clean, rideable waves. The predominant swell directions are WNW (29.5% of waves in the 0.5-2.5m range) and NW (19.2%), which typically align well with the beach, producing organized waves. Smaller contributions come from SW and WSW, adding variety. Wind conditions are less favorable, with only 16% of winds being ideal—likely light offshore or sideshore winds from the east or northeast. However, moderate to strong onshore winds from the south and west are common (SSE, S, and WNW make up over 10% of wind occurrences), which can create choppy or messy surf. The largest swells (2.5m+) are rare (under 0.3% combined) but can deliver powerful sessions when they coincide with lighter winds. Overall, April is a mixed month with fair surf potential, best when WNW/NW swells meet calm or offshore winds—expect some good days but patience will be needed to score clean conditions.