DUCS Swim Checker

Overview

DUCS Swim Checker helps members of the Durban Undersea Club assess ocean swimming conditions for their daily 6 AM swims. The app combines weather and tide data to generate swimability scores.

How to Read the Scores

80-100%

Excellent conditions

60-79%

Good conditions

40-59%

Fair conditions

20-39%

Poor conditions

0-19%

Unswimable

Scoring Factors

❌ Unswimable (0%): NE, NNE
⚠️ Very Bad (-50%): N, ENE
✅ Ideal (+10% bonus): SW, SSW (if wind ≤ 15km/h)
ℹ️ Acceptable (-10%): S, WSW
➖ Other directions (-30%)

Above 25 km/h: -25%
20-25 km/h: -20%
15-20 km/h: -15%
10-15 km/h: -5%
Below 10 km/h: No penalty

High Tide: No penalty
Low Tide: -15%

Disclaimer

This app is designed as a guide only. Always check local conditions and follow safety guidelines before ocean swimming.