La Chiesa - surf spot statistics

Best Surf Season (December - February)

The heart of winter delivers the most consistent and rideable conditions at La Chiesa. With an average swell height hovering around 0.9-1.0m and periods just below 6s, the North Atlantic low-pressure systems send pulses of groundswell that wrap into the southern bight. The real key, however, is the wind: offshore flow from the north-northwest (N, NNW, NW) peaks during these months, clocking in at ideal conditions 27-29% of the time. When a strong high-pressure system settles over the Alps and a deep low sits in the Gulf of Genoa, we see clean, lined-up waves with enough punch to make the grovel boards feel alive. This is the window to plan your strike mission.

Fair Surf Season (March - April & October - November)

The transition months offer a mixed bag. In spring, the jet stream starts to lift north, weakening the Atlantic storms. Swell heights drop to 0.8m and wind consistency starts to fade – offshore flow only occurs 21-22% of the time. However, occasional late-season cold fronts can still deliver a few days of shoulder-high surf with clean north winds. Similarly, autumn (Oct-Nov) sees a gradual ramping up of swell as the planet tilts toward winter. October’s averages are still modest (0.7m, 5.0s), but by November the swell picks up to 0.9m and the wind statistics improve to 23% offshore. These months are a gamble – you might score a sunny fall session with a crisp offshore breeze, or you might get skunked by long periods of onshore ESE winds.

Low Surf Season (May - September)

The Mediterranean summer is a tough stretch for La Chiesa. From May through September, the average swell shrivels to 0.5-0.6m with periods languishing in the 4-5 second range. The wind machine also shuts down – ideal offshore flow plummets to 14-17%. The dominant swell comes from the west and northwest, which barely wrap into this south-facing nook, while southerly swells that do hit are often accompanied by onshore winds from the same quadrant. You’ll find more flat days than rideable ones, and when there is energy, it’s usually weak, wind-affected, and better suited for a longboard or a stand-up paddle. The few windows that open up come when a rare northerly ‘tramontana’ wind blows offshore on a long-period southerly groundswell – but those are the exception, not the rule.

March: Spring Mix with a Winter Kick

March shows the first signs of weakening winter energy. Average swell drops to 0.8m, period to 5.5s, and ideal wind to 22%. Swell from the best directions (SE-SSW) still accounts for 25.0%, but the dominant W/WSW wedge (33.4%) continues to be the main source. The biggest change is the wind: the offshore N-NW combined percentage dips to 26.0%, while onshore ESE winds increase to 10.5%. This makes the surf window narrower – you’re looking for a strong cold front passage that flips the wind to the north before the swell fades. Waves in the 1-1.5m range occur 11.5% of the time, offering a few solid days. The crowd starts to thin out, which is a bonus for those who score a clean dawn patrol with a northerly breeze grooming a fading SSW groundswell.