Miami, Florida weather in May

Averages from 2021–2025 (155 days of record).

Average high: 86°F
Average low: 74°F
Rainy days: ~15 per month
Total precipitation: 4.3 in
Warmest recorded: 97°F
Coldest recorded: 66°F

Expect May days in Miami, Florida to top out around 86°F and cool to about 74°F overnight, with roughly 15 days of measurable rain across the month. In recent years May has ranged from 66°F to 97°F.

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Current Miami, Florida forecast → · Historical data by Open-Meteo (ERA5).