Lista seasonal overview
Best Surf Season (October - March)
The North Atlantic enters its most active phase during these months, with a barrage of extratropical cyclones tracking across the Norwegian Sea. Average swell heights range from 1.7m to 2.2m and periods hover around 7.4s to 8.2s, meaning we see a consistent mix of pumping to firing waves, especially when the swell aligns from S through WSW. The wind regime, while often strong, offers the highest percentage of offshore flow from the N-NE quadrant, with ideal wind windows occurring 9-11% of the time. December and February lead the pack with 11% offshore probability, making these the prime months for scoring clean, powerful surf.
Fair Surf Season (April, May, September)
As the North Atlantic storm track begins to weaken or reawaken, the average swell drops to 1.1-1.5m with periods of 6.5-7.2s. While not as consistently powerful, windows of fun, rippable waves appear when a late-season or early-season low pressure system sends a pulse of SSW-SW swell. Offshore wind frequencies remain in the 8-11% range, offering periodic opportunities for clean conditions. April especially can surprise with solid swell and a decent shot at glassy mornings.
Low Surf Season (June - August)
Summer brings the quietest surf to Lista. The Atlantic high pressure ridges northward, suppressing storm activity. Average swell heights bottom out at 1.1m and periods drop to 5.9-6.2s, producing mostly small, groveling waves. The dominant wind flow veers NW to WNW over 40-50% of the time, which is offshore for this SW-facing beach? Actually NW wind is side-offshore to offshore? Wait: optimal wind is N-NE, so NW is cross-offshore, but not ideal. Worse, the wind often cranks up to 20-40 kph making conditions choppy. The percentage of ideal offshore wind plummets to 6-7%, making it a struggle to find clean surf. However, occasional tropical remnants or unusual summer gales can provide a brief pulse of punchy swell, but these are rare.
Loading chart...
Conditions at Lista in May
May: Diminishing Returns and Grovel Sessions
May settles into summer patterns with a low average swell of 1.1m and period of 6.5s. Swell directions shift further west: NW dominates (21.7%) and WNW (19.3%) – both largely side-shore for the SW-facing beach. The favorable S-SSW-SW sector drops to 16.9%, and most of that is small (<1m). Expect groveling conditions on a logger. Wind remains a limiting factor: ideal offshore flow from N-NE occurs only 5.5% of the time. The easterly flow (E-ESE) is present but weaker (18.3% total), and the NW wind (16.6%) often howls at 30-50 kph, making the sea messy. Occasional cold fronts can still slip through, bringing a pulse of punchy SW swell with light northerly winds, but these are short-lived.
Average Spot conditions at Lista in May
Swell history for May
Wind history for May
Swell quality
Analyze the groundswell consistency at Lista during May. Based on historical data, there is a % probability of groundswell occurring this month. The chart below provides a detailed breakdown of the average wave height distribution, offering deep insights into the swell quality and surf potential you can expect at Lista for your next trip in May.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Lista for May. Our analysis shows that favorable offshore or side-shore winds coincide with surfable swell approximately % of the time. The accompanying graph illustrates the average size distribution of waves during these optimal wind windows at Lista.
