May is one of the warmer months of the year in Hialeah, with average highs near 29.5°C and lows around 23.7°C (mean 26.6°C). It is about average for rainfall, averaging 114 mm of rainfall and 70% relative humidity across the period.
May is one of the warmer months of the year in Hialeah. Across 45 years of records, the warmest May in Hialeah was 2024 — when the month averaged 29°C — while the coldest was 1992 at 24.5°C. Typical May days reach 29.5°C with nights near 23.7°C. The long-term trend is warming, about 0.4°C per decade.
May is about average for rainfall in Hialeah, averaging 114 mm of rainfall. The wettest May on record was 2018 with 290 mm, while the driest was 1992 at 21 mm.
Relative humidity in Hialeah during May averages 70%. The most humid May was 2018 at 79%, and the least humid was 1981 at 63%.
May receives about 6.3 kWh/m²/day of solar energy in Hialeah. The sunniest May was 1992 at 6.9 kWh/m²/day, and the cloudiest was 2018 at 4.7.
Average wind speed in Hialeah during May is 3.4 m/s. The windiest May was 2007 at 4.4 m/s, while the calmest were 2006 and 2023 at 2.7 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 26.0°C | 26.2°C | 26.8°C | 26.9°C | 27.6°C | +1.6°C |
| Avg High | 28.9°C | 29.0°C | 29.8°C | 29.8°C | 30.5°C | +1.6°C |
| Avg Low | 23.1°C | 23.5°C | 23.7°C | 24.0°C | 24.7°C | +1.6°C |
| Avg Rain | 108 mm | 124 mm | 106 mm | 114 mm | 116 mm | +8 mm |
May temperatures in Hialeah have risen by about 2°C between 1981–1985 and 2021–2025.
May has ranged from a record low of 14.1°C (1992) to a record high of 34.9°C (2024).
Rainfall in May is about average for rainfall, averaging 114 mm, with a wettest year of 290 mm.
A good time to visit Hialeah
May is a good time to visit Hialeah, with days averaging 29.5°C and nights around 23.7°C (mean 26.6°C, warmer than Hialeah's yearly average) and higher rainfall. March and December are marginally more temperate, but May still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 31.1°C | 28.3°C | 25.6°C | 34.0°C | 21.6°C | 118 mm | 71% | 2.9 m/s | 6.6 |
| 2024 🔥 | 32.1°C | 29.0°C | 25.9°C | 34.9°C | 23.3°C | 41 mm | 69% | 3.1 m/s | 6.8 |
| 2023 | 30.0°C | 27.0°C | 23.9°C | 32.0°C | 19.6°C | 163 mm | 70% | 2.7 m/s | 6.5 |
| 2022 | 30.5°C | 27.6°C | 24.6°C | 33.5°C | 20.3°C | 122 mm | 70% | 3.2 m/s | 6.5 |
| 2021 | 30.2°C | 27.4°C | 24.7°C | 32.9°C | 22.6°C | 38 mm | 67% | 3.9 m/s | 6.7 |
| 2020 | 29.2°C | 26.4°C | 23.7°C | 32.4°C | 17.7°C | 216 mm | 73% | 3.7 m/s | 5.9 |
| 2019 | 30.3°C | 27.6°C | 24.8°C | 32.5°C | 23.2°C | 86 mm | 71% | 3.6 m/s | 6.6 |
| 2018 🌧️ | 27.8°C | 25.8°C | 23.8°C | 31.1°C | 22.1°C | 290 mm | 79% | 4 m/s | 4.7 |
| 2017 | 31.0°C | 27.6°C | 24.3°C | 34.7°C | 16.6°C | 70 mm | 68% | 3.6 m/s | 6.7 |
| 2016 | 29.2°C | 26.4°C | 23.5°C | 32.3°C | 15.5°C | 155 mm | 70% | 3.1 m/s | 6.3 |
| 2015 | 30.2°C | 27.3°C | 24.3°C | 33.3°C | 19.8°C | 39 mm | 66% | 3.6 m/s | 6.7 |
| 2014 | 29.9°C | 26.9°C | 23.9°C | 33.5°C | 20.4°C | 60 mm | 67% | 4 m/s | 6.6 |
| 2013 | 29.1°C | 26.0°C | 22.9°C | 32.4°C | 17.0°C | 157 mm | 70% | 3.5 m/s | 6 |
| 2012 | 29.2°C | 26.7°C | 24.1°C | 32.7°C | 22.5°C | 143 mm | 74% | 3 m/s | 5.9 |
| 2011 | 31.0°C | 27.6°C | 24.2°C | 33.5°C | 21.2°C | 53 mm | 63% | 3.3 m/s | 6.5 |
| 2010 | 29.9°C | 27.1°C | 24.4°C | 32.0°C | 22.9°C | 86 mm | 73% | 3.2 m/s | 6.4 |
| 2009 | 29.4°C | 26.9°C | 24.3°C | 33.8°C | 21.3°C | 208 mm | 71% | 3.1 m/s | 6.2 |
| 2008 | 30.6°C | 27.2°C | 23.7°C | 33.2°C | 18.7°C | 44 mm | 66% | 3.8 m/s | 6.7 |
| 2007 | 29.2°C | 26.1°C | 23.0°C | 32.2°C | 17.7°C | 78 mm | 67% | 4.4 m/s | 6.1 |
| 2006 | 30.4°C | 26.7°C | 22.9°C | 32.6°C | 18.8°C | 97 mm | 67% | 2.7 m/s | 6.2 |
| 2005 | 29.9°C | 26.6°C | 23.4°C | 33.6°C | 19.8°C | 98 mm | 69% | 3.2 m/s | 6.2 |
| 2004 | 29.4°C | 26.5°C | 23.6°C | 34.0°C | 20.0°C | 42 mm | 67% | 4.2 m/s | 6.8 |
| 2003 | 30.1°C | 27.5°C | 24.9°C | 32.5°C | 21.4°C | 213 mm | 74% | 3 m/s | 6.3 |
| 2002 | 30.2°C | 27.3°C | 24.3°C | 32.2°C | 21.9°C | 108 mm | 69% | 3.9 m/s | 6.4 |
| 2001 | 28.8°C | 25.8°C | 22.8°C | 32.2°C | 19.9°C | 130 mm | 69% | 3.8 m/s | 5.7 |
| 2000 | 30.2°C | 27.0°C | 23.8°C | 32.9°C | 20.0°C | 47 mm | 65% | 3.3 m/s | 6.7 |
| 1999 | 29.3°C | 26.1°C | 23.0°C | 33.0°C | 15.0°C | 106 mm | 68% | 2.9 m/s | 6.6 |
| 1998 | 30.0°C | 26.9°C | 23.9°C | 32.3°C | 19.5°C | 82 mm | 69% | 3 m/s | 6.5 |
| 1997 | 29.2°C | 26.6°C | 24.0°C | 32.6°C | 20.7°C | 117 mm | 73% | 3.1 m/s | 6.2 |
| 1996 | 28.5°C | 26.3°C | 24.0°C | 30.5°C | 22.4°C | 227 mm | 76% | 3.3 m/s | 6 |
| 1995 | 29.8°C | 27.2°C | 24.7°C | 31.3°C | 22.5°C | 115 mm | 73% | 3 m/s | 6.5 |
| 1994 | 29.1°C | 26.4°C | 23.7°C | 31.7°C | 18.2°C | 96 mm | 71% | 2.9 m/s | 6.6 |
| 1993 | 27.4°C | 24.7°C | 22.1°C | 30.4°C | 18.1°C | 141 mm | 73% | 4 m/s | 6.1 |
| 1992 ❄️ | 28.1°C | 24.5°C | 21.0°C | 31.6°C | 14.1°C | 21 mm | 67% | 3.4 m/s | 6.9 |
| 1991 | 29.0°C | 26.9°C | 24.8°C | 30.6°C | 23.5°C | 173 mm | 74% | 4.1 m/s | 5.8 |
| 1990 | 29.2°C | 26.6°C | 24.1°C | 31.4°C | 20.6°C | 160 mm | 73% | 3.9 m/s | 5.8 |
| 1989 | 31.0°C | 27.5°C | 24.1°C | 34.2°C | 18.1°C | 43 mm | 63% | 3.3 m/s | 6.8 |
| 1988 | 28.6°C | 25.6°C | 22.7°C | 32.8°C | 17.0°C | 96 mm | 68% | 3.1 m/s | 5.8 |
| 1987 | 28.3°C | 25.7°C | 23.1°C | 29.9°C | 18.6°C | 121 mm | 71% | 3.7 m/s | 6.4 |
| 1986 | 28.3°C | 25.6°C | 22.8°C | 30.7°C | 20.3°C | 69 mm | 69% | 3.7 m/s | 6.3 |
| 1985 | 30.0°C | 26.7°C | 23.5°C | 32.9°C | 21.4°C | 88 mm | 66% | 2.9 m/s | 6.4 |
| 1984 | 27.8°C | 25.6°C | 23.3°C | 30.3°C | 19.3°C | 206 mm | 75% | 3.6 m/s | 5.8 |
| 1983 | 27.8°C | 25.1°C | 22.4°C | 30.4°C | 19.3°C | 40 mm | 70% | 3.6 m/s | — |
| 1982 | 27.5°C | 25.1°C | 22.7°C | 29.8°C | 20.5°C | 226 mm | 72% | 4.1 m/s | — |
| 1981 | 30.7°C | 27.0°C | 23.4°C | 33.3°C | 20.3°C | 84 mm | 63% | 3.4 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 29.5°C with lows near 23.7°C (mean 26.6°C), based on 45 years of NASA POWER data.
May averages 114 mm of rainfall in Hialeah, about average for rainfall. The wettest on record was 290 mm in 2018.
The hottest May reached 34.9°C in 2024. The coldest dipped to 14.1°C in 1992.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average May temperatures have risen by about 2°C. Daytime highs moved from 28.8°C to 30.8°C and overnight lows from 23.1°C to 24.9°C over the same span.
May is one of the warmer months of the year in Hialeah and about average for rainfall, so plan for around 29.5°C daytime highs and 23.7°C at night.
Not quite — May is the 8th coolest month in Hialeah, averaging 26.6°C.
For May in Hialeah, pack light layers you can adjust through the day, with typical highs of 29.5°C and lows of 23.7°C. Bring an umbrella or light rain jacket too.
Relative humidity in May averages 70% — moderately humid.
Average wind speed in May is 3.4 m/s. The windiest May on record averaged 4.4 m/s (2007).
The wettest May on record was 2018 with 290 mm. On average, May sees 114 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 Hialeah behaves each May, 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 May specifically, along with year-by-year records and how the month has changed over the decades.
