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.

September at this surf spot offers variable but generally manageable conditions for surfers. The average swell height is 1.4m with an 8.0s period, indicating moderately clean and rideable waves, though not particularly powerful. The majority of swells come from the W-NW sector, with the highest frequency in the 0.5-2.5m range, peaking around 1-1.5m. WNW swells dominate, contributing to 11.54% of waves in the 0.5-1m range, while SW-WSW swells bring slightly larger waves (1.5-2.5m), offering more punch for advanced surfers. Wind conditions are less favorable, with ideal offshore or light cross-shore winds occurring only 12% of the time. The prevailing winds are often from the S-SSW or NNW, which can create choppy or onshore conditions, especially at higher speeds (20-40kph). However, there is a window where winds are lighter (10-20kph) from the NW-NNW, which could provide cleaner sessions. Overall, September delivers fun-sized surf with occasional good days when winds align, but expect variable wind interference.