Monte Grande Beach sits on Sal's remote northeast coast, exposed to Atlantic currents and swells that can create challenging swimming conditions. The beach is undeveloped without lifeguards or safety infrastructure, so swimming is at your own risk. Ocean conditions are generally rougher than Sal's western beaches, with stronger currents and undertow. Experienced ocean swimmers may enjoy the waves during calmer periods, but beginners should exercise extreme caution. Always observe the water for at least 10 minutes before entering, never swim alone, and avoid going in if waves look large or conditions seem unpredictable.

The optimal period is November through June during Cape Verde's dry season, with February to April offering excellent weather and moderate winds. Early morning visits provide the calmest conditions and best lighting for experiencing this remote coastline. Given its northeast exposure, the beach receives consistent trade winds, which intensify during afternoons. The low-profile nature means crowds are never an issue, making any time suitable for solitude seekers. Avoid July through October when Atlantic storms can bring rough seas and occasional rain. Weekdays offer even more privacy than weekends when a few local explorers might visit.