San Juan weather by month › May
San Juan in May: weather and what to expect
Wet. May falls in San Juan’s rainy season, with about 7.0 in (177 mm) of rain. For drier weather, go in February.
May weather in San Juan
Daytime high88°F 31°C
Night low72°F 22°C
Rain7.0 in 177 mm
AirMuggy
SunStrong sun
In May, San Juan averages highs of 88°F (31°C) and lows of 72°F (22°C), with 7.0 in (177 mm) of rain. The air feels muggy and the sun is strong. 1991–2020 averages, not a forecast.
Pack: light clothes and sun protection, a rain jacket or umbrella.
Places with the same weather in May
Match out of 100 for May, one city per country.
- Santiago de Cuba Cuba · 88°F highs95
- Santo Domingo Oeste Dominican Republic · 91°F highs93
- New Kingston Jamaica · 86°F highs92
- Nanning China · 87°F highs92
- Chiayi City Taiwan · 85°F highs90
- Freetown Sierra Leone · 89°F highs89
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