Middles seasonal overview
Best Surf Season (October - March)
The best surf of the year at Middles arrives when autumn and winter synoptic systems start to assert themselves across the North Atlantic. As low pressure centers deepen and cold fronts push farther south, the average swell size climbs to 1.7-1.9m (5.6-6.2ft) and periods build to the 9.6-9.8s range. More importantly, the swell direction begins to rotate into the northern quadrants - N, NNE, NE, and NNW - which are the money angles for this almost north-facing beach. October is the real turning point: ideal wind conditions peak at 34% as the trade wind regime starts to weaken and south/southwest offshore flow becomes more frequent. From November through March, the winter swell machine is in full swing, and when the wind direction aligns, Middles can deliver powerful, well-structured waves.
Fair Surf Season (April - May & September)
The transition months offer cleaner but smaller surf. April averages 1.6m (5.2ft) with a period of 9.3s and still holds some NNE/NE energy, while ideal wind climbs to 25%. May sees the highest percentage of ideal wind for the spring at 31%, but the swell drops to 1.3m (4.3ft) and the period fades to 8.4s, making it a grovel by comparison. September is the wildcard month: hurricane season can spin up longer-period E/ENE swells, and when a storm tracks far enough west or north, the north-facing reefs can suddenly come alive. However, on average, September is still transitional and inconsistent.
Low Surf Season (June - August)
Summer is the low point of the year at Middles. Average swell heights drop to 1.3-1.4m (4.3-4.6ft) and periods bottom out at just 7.2-7.4s. The dominant swell energy comes from the E and ENE quadrants, which are poor angles for this north-facing exposure. At the same time, the trade winds lock in from the east and east-northeast, leaving the wind in a cross-shore and cross-onshore position. July is especially challenging with ideal wind sitting at only 13%. You can still find fun summer waves, especially if a hurricane sends in a longer-period E/ENE pulse, but quality is limited and consistency is low.