Weather in San Martín in septiembre
Country-wide climate normals across 13 cities in San Martín.
How Hot Is San Martín in septiembre?
San Martín bakes evenly in September — highs around 28°C are typical from Saint-James all the way to Les Terres Basses, with very little regional variation. Lows sit around 27°C even overnight, and the country's small geographic footprint means there are no significant climate pockets. Expect uniform heat day and night.
Sunshine in San Martín in septiembre
Limited sunshine and short daylight define San Martín's September: Marigot averages just 1.8h of direct sun, with the sun up between 6:00 am and 6:15 pm. The grey, overcast pattern is consistent across most of the country, with little regional variation in cloud cover.
Does It Rain In San Martín In septiembre?
Heavy rain shapes San Martín's September: Marigot averages 142mm across 16 days, and most regions of the country see similar persistent wet conditions. Long sunny stretches are rare. Expect rain on roughly two out of every three days.
Is San Martín Humid In septiembre?
Heavy oppressive humidity covers San Martín in September: 76% on average in Marigot, and similar saturating conditions exist nationwide. The air feels thick and heavy from sunrise to sundown, with little overnight respite. Coastal and tropical regions feel especially stifling.
Wind In San Martín In septiembre
Persistent breeze shapes San Martín's September: 27 kph in Marigot, with consistent wind across the country. The conditions are ideal for sailing and other wind sports, but can be disruptive for fine outdoor work.
Cloud Cover In San Martín In septiembre
Cloudy skies dominate San Martín in September — 73% cover in Marigot, with similar overcast conditions in most regions. Direct sun is patchy and broken; expect grey stretches between brief bright moments. Coastal areas may be heavier than inland.