Surf forecastSpot statisticsHistorical report

Medewi seasonal overview

Medewi, Indonesia, is a consistent year-round surf destination with reliable ground swells dominating the swell mix, rarely dropping below 93% in any month. The best conditions for surfers generally occur from April to June when the swell size averages 1.3–1.5m, offering a solid balance of power and rideability. During this period, wind conditions are slightly more favorable compared to the rest of the year, with good wind days peaking at 40% in April before gradually decreasing. The swell quality remains excellent, with almost no wind swell interference and virtually no flat days. The largest swells arrive from July to September, averaging 1.6m, but stronger onshore winds become more prevalent, particularly from August onward, reducing ideal sessions. The least favorable months are December and January, when the swell drops to 1.2m, and wind conditions worsen, with bad winds exceeding 75% of the time. While Medewi is surfable throughout the year due to its high ground swell consistency, mid-year (April–June) provides the best compromise between wave size and manageable winds, making it the prime window for advanced surfers seeking quality right-hand point breaks with minimal interruptions.

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Conditions at Medewi in December

December at Medewi offers consistent surf with an average swell height of 1.2m and a solid 13.2s period, indicating well-spaced, powerful waves. The swell is predominantly SSW (60% of waves 1-1.5m) with occasional S and SW contributions, ensuring reliable, mid-sized conditions. Larger sets (1.5-2m) appear 13% of the time, mainly from SSW, while smaller waves (0.5-1m) are common but still rideable. Wind is the main variable—only 17% ideal (light offshore or sideshore), with WSW winds (7-20+ kph) being most frequent, potentially creating chop. Mornings often see lighter winds, improving conditions. Advanced surfers will find quality rights, especially on clean days, though wind management is key. Overall, expect rideable surf most days, with peak sessions when wind aligns.

Average Spot conditions at Medewi in December

Swell history for December

0 - 0.5
0.5 - 1
1 - 1.5
1.5 - 2.0
2.0 - 2.5
> 2.5 m

Wind history for December

0 - 10
10 - 20
20 - 30
30 - 40
40 - 50
> 50 km/h

Swell quality

Analyze the groundswell consistency at Medewi during December. 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 Medewi for your next trip in December.

Ground swell

Ground swell by size

Wind conditions

Evaluate the wind and swell alignment at Medewi for December. 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 Medewi.

Swell with good wind

Swell with good wind by size