Verdict: Fair month
Miami Weather in August
August runs warm in Miami, with daily highs around 31°C (88°F) and nights near 26°C (79°F). It's also the wet side of the calendar: rain falls on about 26 days, so build flexibility into plans. August is workable in Miami if your dates are fixed — just plan around the conditions.
Average high
31°C / 88°F
Average low
26°C / 79°F
Rain days
~26
Precipitation
145 mm
What to pack for Miami in August
- Light, breathable clothing — linen and technical fabrics earn their keep
- High-SPF sunscreen, sunglasses, and a refillable water bottle
- Rain gear is non-negotiable — expect rain on roughly 26 days
- Comfortable walking shoes — every guide on this site assumes you'll use them
August against the rest of the year
Warmest in Miami: Jul (31°C / 88°F) · Coolest: Jan (24°C / 75°F) · Wettest: Aug (~26 rain days)
24°
17°
Jan
25°
19°
Feb
27°
21°
Mar
28°
22°
Apr
29°
23°
May
30°
24°
Jun
31°
26°
Jul
31°
26°
Aug
30°
25°
Sep
29°
24°
Oct
27°
22°
Nov
25°
19°
Dec
Daily highs / lows in °C · bars show rain days per month · ERA5 climate normals (2020–2024)