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San Andres weather by month

San Andres runs from about 27°C in February to 29°C in May, with October the wettest month at 430 mm.

warmest month

May

29°C

coolest month

February

27°C

wettest month

October

430 mm

worst air month

May

15 µg/m³

The whole year, month by month.

Monthly climate normals for San Andres
MonthAvg tempRainSunPM2.5
January28°C46 mm340 h8
February27°C27 mm315 h10
March28°C15 mm349 h9
April28°C31 mm350 h8
May29°C147 mm336 h15
June28°C260 mm262 h13
July28°C362 mm264 h14
August28°C214 mm324 h11
September28°C423 mm247 h7
October28°C430 mm252 h5
November27°C313 mm277 h8
December28°C311 mm267 h9

About 3,583 hours of sun a year. Roughly 225 rainy days a year.

These are long-run climate normals, not a forecast. A given year can sit well outside them. PM2.5 is a global model: near the coast it counts sea salt as fine particulate and reads high against ground stations, sometimes by a factor of two. Use the shape of the year, not the absolute number.