August is one of the warmer months of the year in Miami Beach, with average highs near 29.8°C and lows around 28°C (mean 28.9°C). It is a relatively wet time of year, averaging 181 mm of rainfall and 77% relative humidity across the period.
August is one of the warmer months of the year in Miami Beach. Across 45 years of records, the warmest August in Miami Beach was 2023 — when the month averaged 30.2°C — while the coldest were 1984, 1988 and 1994 at 28°C. Typical August days reach 29.8°C with nights near 28°C. The long-term trend is warming, about 0.3°C per decade.
August is a relatively wet time of year in Miami Beach, averaging 181 mm of rainfall. The wettest August on record was 1981 with 309 mm, while the driest was 2013 at 90 mm.
Relative humidity in Miami Beach during August averages 77%. The most humid August was 1995 at 79%, and the least humid was 2007 at 74%.
August receives about 5.7 kWh/m²/day of solar energy in Miami Beach. The sunniest Augusts were 2014, 2020 and 2022, among others at 6.1 kWh/m²/day, and the cloudiest was 2011 at 5.
Average wind speed in Miami Beach during August is 3.3 m/s. The windiest August was 1981 at 4.4 m/s, while the calmest was 1990 at 2.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 28.4°C | 28.7°C | 28.9°C | 29.1°C | 29.7°C | +1.3°C |
| Avg High | 29.3°C | 29.5°C | 29.8°C | 30.0°C | 30.6°C | +1.3°C |
| Avg Low | 27.6°C | 27.8°C | 28.0°C | 28.3°C | 28.7°C | +1.1°C |
| Avg Rain | 176 mm | 199 mm | 180 mm | 185 mm | 150 mm | -26 mm |
August temperatures in Miami Beach have risen by about 1.4°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 25.8°C (1994) to a record high of 33°C (2025).
Rainfall in August is a relatively wet time of year, averaging 181 mm, with a wettest year of 309 mm.
A quieter season to visit Miami Beach
If your dates are flexible, the more temperate months of February and December tend to be the most comfortable for visiting Miami Beach. That said, August — with days averaging 29.8°C and nights around 28°C (mean 28.9°C) and higher rainfall (181 mm) — can still be rewarding for travellers who don't mind the warmth, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 31.1°C | 29.9°C | 28.7°C | 33.0°C | 27.1°C | 149 mm | 76% | 2.6 m/s | 5.7 |
| 2024 | 30.7°C | 29.8°C | 28.9°C | 32.0°C | 28.0°C | 203 mm | 79% | 4.1 m/s | 5.1 |
| 2023 🔥 | 31.2°C | 30.2°C | 29.1°C | 32.4°C | 28.2°C | 177 mm | 77% | 3.7 m/s | 5.7 |
| 2022 | 30.3°C | 29.4°C | 28.6°C | 31.8°C | 27.6°C | 94 mm | 76% | 3.2 m/s | 6.1 |
| 2021 | 30.1°C | 29.3°C | 28.5°C | 31.2°C | 27.0°C | 138 mm | 76% | 3.5 m/s | 5.8 |
| 2020 | 30.1°C | 29.3°C | 28.5°C | 30.9°C | 26.7°C | 137 mm | 79% | 3.7 m/s | 6.1 |
| 2019 | 30.1°C | 29.2°C | 28.4°C | 31.6°C | 27.3°C | 253 mm | 78% | 3 m/s | 5.3 |
| 2018 | 29.7°C | 28.9°C | 28.2°C | 30.3°C | 27.0°C | 116 mm | 76% | 3.4 m/s | 6 |
| 2017 | 30.1°C | 29.2°C | 28.3°C | 31.4°C | 26.8°C | 198 mm | 77% | 3.4 m/s | 5.9 |
| 2016 | 29.8°C | 29.1°C | 28.3°C | 31.3°C | 27.1°C | 241 mm | 78% | 3.6 m/s | 5.4 |
| 2015 | 30.3°C | 29.4°C | 28.5°C | 31.4°C | 27.1°C | 162 mm | 75% | 2.8 m/s | 5.6 |
| 2014 | 30.4°C | 29.5°C | 28.5°C | 31.5°C | 26.8°C | 138 mm | 74% | 3 m/s | 6.1 |
| 2013 | 29.3°C | 28.5°C | 27.8°C | 30.3°C | 26.6°C | 90 mm | 78% | 3.3 m/s | 5.6 |
| 2012 | 29.7°C | 28.9°C | 28.0°C | 30.9°C | 26.9°C | 210 mm | 77% | 3.7 m/s | 5.5 |
| 2011 | 30.3°C | 29.3°C | 28.3°C | 31.7°C | 27.0°C | 204 mm | 77% | 3.4 m/s | 5 |
| 2010 | 30.3°C | 29.4°C | 28.4°C | 31.5°C | 26.8°C | 238 mm | 76% | 3 m/s | 5.5 |
| 2009 | 30.2°C | 29.3°C | 28.3°C | 31.4°C | 27.2°C | 145 mm | 76% | 3.3 m/s | 6.1 |
| 2008 | 29.8°C | 28.9°C | 28.0°C | 31.2°C | 27.0°C | 270 mm | 78% | 3.8 m/s | 5.4 |
| 2007 | 30.4°C | 29.4°C | 28.4°C | 31.7°C | 27.6°C | 92 mm | 74% | 3.1 m/s | 5.9 |
| 2006 | 29.7°C | 28.8°C | 27.9°C | 31.3°C | 26.9°C | 192 mm | 77% | 3.4 m/s | 5.5 |
| 2005 | 30.3°C | 29.5°C | 28.6°C | 31.5°C | 27.5°C | 204 mm | 77% | 3 m/s | 5.8 |
| 2004 | 29.7°C | 28.9°C | 28.0°C | 31.1°C | 26.4°C | 221 mm | 79% | 3.2 m/s | 5.5 |
| 2003 | 29.4°C | 28.6°C | 27.9°C | 30.4°C | 26.5°C | 225 mm | 79% | 3.5 m/s | 5.3 |
| 2002 | 29.7°C | 28.7°C | 27.8°C | 31.2°C | 26.5°C | 142 mm | 76% | 3.2 m/s | 5.8 |
| 2001 | 29.6°C | 28.7°C | 27.8°C | 31.1°C | 26.0°C | 153 mm | 76% | 2.9 m/s | 5.5 |
| 2000 | 29.3°C | 28.4°C | 27.5°C | 30.9°C | 26.5°C | 159 mm | 77% | 3.8 m/s | 5.7 |
| 1999 | 29.9°C | 29.0°C | 28.0°C | 31.5°C | 26.7°C | 229 mm | 78% | 3.4 m/s | 5.5 |
| 1998 | 30.4°C | 29.5°C | 28.6°C | 31.4°C | 27.4°C | 157 mm | 75% | 3.1 m/s | 5.8 |
| 1997 | 29.9°C | 29.1°C | 28.3°C | 31.0°C | 26.9°C | 183 mm | 74% | 2.7 m/s | 5.5 |
| 1996 | 28.9°C | 28.2°C | 27.4°C | 30.3°C | 26.1°C | 155 mm | 77% | 3.3 m/s | 5.5 |
| 1995 | 29.5°C | 28.6°C | 27.6°C | 30.7°C | 25.8°C | 307 mm | 79% | 3.9 m/s | 5.7 |
| 1994 | 28.8°C | 28.0°C | 27.3°C | 29.6°C | 25.8°C | 244 mm | 77% | 3.5 m/s | 5.5 |
| 1993 | 29.2°C | 28.3°C | 27.4°C | 30.9°C | 26.5°C | 163 mm | 77% | 3.3 m/s | 5.8 |
| 1992 | 29.1°C | 28.4°C | 27.6°C | 30.0°C | 26.2°C | 188 mm | 77% | 3.4 m/s | 5.5 |
| 1991 | 29.7°C | 28.8°C | 28.0°C | 30.8°C | 27.1°C | 141 mm | 75% | 3 m/s | 6.1 |
| 1990 | 29.4°C | 28.6°C | 27.8°C | 30.5°C | 26.2°C | 222 mm | 76% | 2.3 m/s | 5.6 |
| 1989 | 29.7°C | 28.7°C | 27.8°C | 30.6°C | 27.1°C | 174 mm | 75% | 3.1 m/s | 5.8 |
| 1988 | 28.8°C | 28.0°C | 27.3°C | 29.9°C | 26.2°C | 235 mm | 79% | 3.5 m/s | 5.4 |
| 1987 | 30.0°C | 29.0°C | 28.0°C | 31.3°C | 27.0°C | 93 mm | 74% | 3.4 m/s | 5.9 |
| 1986 | 29.1°C | 28.3°C | 27.4°C | 30.2°C | 26.5°C | 153 mm | 77% | 3.8 m/s | 5.8 |
| 1985 | 29.2°C | 28.5°C | 27.8°C | 30.1°C | 26.1°C | 164 mm | 76% | 3.7 m/s | 5.7 |
| 1984 ❄️ | 28.9°C | 28.0°C | 27.1°C | 30.0°C | 26.2°C | 123 mm | 75% | 3 m/s | 5.8 |
| 1983 | 29.3°C | 28.5°C | 27.7°C | 30.4°C | 26.3°C | 190 mm | 77% | 3 m/s | — |
| 1982 | 29.1°C | 28.3°C | 27.4°C | 30.7°C | 26.6°C | 142 mm | 76% | 3.3 m/s | — |
| 1981 🌧️ | 29.2°C | 28.4°C | 27.5°C | 30.7°C | 26.0°C | 309 mm | 79% | 4.4 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 29.8°C with lows near 28°C (mean 28.9°C), based on 45 years of NASA POWER data.
August averages 181 mm of rainfall in Miami Beach, a relatively wet time of year. The wettest on record was 309 mm in 1981.
The hottest August reached 33°C in 2025. The coldest dipped to 25.8°C in 1994.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 1.4°C. Daytime highs moved from 29.1°C to 30.7°C and overnight lows from 27.5°C to 28.8°C over the same span.
August is one of the warmer months of the year in Miami Beach and a relatively wet time of year, so plan for around 29.8°C daytime highs and 28°C at night.
Not quite — August is the 12th coolest month in Miami Beach, averaging 28.9°C.
For August in Miami Beach, pack light layers you can adjust through the day, with typical highs of 29.8°C and lows of 28°C. Bring an umbrella or light rain jacket too.
Relative humidity in August averages 77% — quite humid.
Average wind speed in August is 3.3 m/s. The windiest August on record averaged 4.4 m/s (1981).
The wettest August on record was 1981 with 309 mm. On average, August sees 181 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Miami Beach behaves each August, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for August specifically, along with year-by-year records and how the month has changed over the decades.
