Machico seasonal overview
Best Surf Season (October - March)
Surf forecasts on the Portuguese islands are written by the North Atlantic, and Machico is no exception. The autumn-to-spring window is the only time of year when the average swell height sits in the 2-2.6m (6.5-8.5ft) range and average periods stretch to 11.5-12.9s. These long-period waves carry the potential to wrap into Machico's SE-facing pocket, and the late autumn/winter months also produce the highest frequency of E/ESE/SE/SSE swell-small in absolute terms, but enough to turn a flat, shadowed bay into an actual surf spot. The catch is wind. Ideal offshore flow from the W/WNW/NW/NNW quadrant is present only 29-47% of the time, so you have to pick your windows, often in the wake of a cold front or when a strong Azores high-pressure ridge pushes storm tracks away from the island. Negative NAO phases in particular can help steer lows toward Madeira and raise the odds of a memorable SE groundswell. If December and January align, Machico delivers powerful, long-period waves with the Atlantic thumping behind them.
Fair Surf Season (April - June)
As the ocean begins to relax in late spring, the trade-wind machine takes over. Ideal offshore wind percentages climb to 51-64%, and the stronger, more consistent NW/NNW swells of winter ease into clean 1.5-2.1m (5-7ft) surf with average periods between 9.3 and 11.2s. This is Machico's most cooperative weather window: milder air, less rain, and far fewer blown-out, onshore days. The quality still depends on direction-the E/SE window is quiet-but surfability is at its annual peak for average surfers. It is the season when a smaller board and a patient attendance record pay off.
Low Surf Season (July - September)
Summer is the slow season at Machico. High pressure locks in over the North Atlantic, the average swell height drops to 1.4-1.6m (4.5-5.2ft), and the dominant NNW and NNE windswells rarely contain the period or the E/SE component the bay needs. The water is warmest-up to 23.6°C in September-and the wind remains favorable 56-58% of the time, but those glassy mornings usually come with an ocean that is smaller, softer and more inconsistent. September is the transition month: the first long-period pulses of autumn begin to mix with the summer NNE windswell, hinting that the North Atlantic is waking up again.