May is one of the warmer months of the year in Savannah, with average highs near 29.1°C and lows around 18.9°C (mean 24°C). It is one of the drier months, averaging 80 mm of rainfall and 71% relative humidity across the period.
May is one of the warmer months of the year in Savannah. Across 45 years of records, the warmest May in Savannah was 2019 — when the month averaged 26.9°C — while the coldest was 1992 at 21.6°C. Typical May days reach 29.1°C with nights near 18.9°C. The long-term trend is warming, about 0.3°C per decade.
May is one of the drier months in Savannah, averaging 80 mm of rainfall. The wettest May on record was 2017 with 191 mm, while the driest was 2011 at 13 mm.
Relative humidity in Savannah during May averages 71%. The most humid May was 1991 at 83%, and the least humid was 1981 at 58%.
May receives about 6.3 kWh/m²/day of solar energy in Savannah. The sunniest Mays were 2015, 2019 and 2021, among others at 6.8 kWh/m²/day, and the cloudiest were 2009 and 2023 at 5.3.
Average wind speed in Savannah during May is 1.2 m/s. The windiest May was 2007 at 1.4 m/s, while the calmest was 1982 at 1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 23.2°C | 23.7°C | 24.2°C | 24.5°C | 24.3°C | +1.1°C |
| Avg High | 28.4°C | 28.8°C | 29.5°C | 29.5°C | 29.2°C | +0.8°C |
| Avg Low | 17.9°C | 18.7°C | 18.9°C | 19.5°C | 19.5°C | +1.6°C |
| Avg Rain | 65 mm | 68 mm | 76 mm | 96 mm | 99 mm | +35 mm |
May temperatures in Savannah have risen by about 1.5°C between 1981–1985 and 2021–2025.
May has ranged from a record low of 7°C (1992) to a record high of 39.7°C (2019).
Rainfall in May is one of the drier months, averaging 80 mm, with a wettest year of 191 mm.
One of the best times to visit Savannah
May is one of the best times to visit Savannah. Expect days averaging 29.1°C and nights around 18.9°C (mean 24°C) — warmer than Savannah's yearly average — with moderate rainfall (80 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 30.1°C | 25.4°C | 20.8°C | 33.9°C | 16.0°C | 186 mm | 75% | 1.1 m/s | 5.6 |
| 2024 | 30.3°C | 25.7°C | 21.0°C | 34.0°C | 16.5°C | 119 mm | 75% | 1.1 m/s | 6 |
| 2023 | 27.7°C | 23.0°C | 18.3°C | 33.1°C | 10.7°C | 102 mm | 74% | 1.3 m/s | 5.3 |
| 2022 | 30.2°C | 25.3°C | 20.4°C | 35.4°C | 12.0°C | 72 mm | 71% | 1.1 m/s | 6.4 |
| 2021 | 29.3°C | 23.9°C | 18.5°C | 35.4°C | 10.6°C | 28 mm | 65% | 1.3 m/s | 6.8 |
| 2020 | 27.3°C | 22.7°C | 18.0°C | 33.5°C | 10.5°C | 89 mm | 76% | 1.2 m/s | 6.5 |
| 2019 🔥 | 32.2°C | 26.9°C | 21.5°C | 39.7°C | 15.1°C | 69 mm | 67% | 1.1 m/s | 6.8 |
| 2018 | 29.1°C | 24.7°C | 20.4°C | 35.4°C | 13.6°C | 158 mm | 78% | 1.1 m/s | 6 |
| 2017 🌧️ | 29.9°C | 24.4°C | 18.9°C | 34.7°C | 11.6°C | 191 mm | 68% | 1.3 m/s | 6.6 |
| 2016 | 28.1°C | 23.4°C | 18.7°C | 32.2°C | 10.0°C | 158 mm | 73% | 1.1 m/s | 6.1 |
| 2015 | 29.0°C | 24.2°C | 19.5°C | 33.5°C | 12.6°C | 28 mm | 72% | 1.2 m/s | 6.8 |
| 2014 | 29.4°C | 24.1°C | 18.8°C | 34.7°C | 11.3°C | 70 mm | 72% | 1.1 m/s | 6.5 |
| 2013 | 27.0°C | 22.3°C | 17.6°C | 31.2°C | 10.2°C | 61 mm | 73% | 1.3 m/s | 6.3 |
| 2012 | 29.4°C | 24.7°C | 20.0°C | 33.8°C | 15.1°C | 129 mm | 73% | 1.3 m/s | 5.9 |
| 2011 | 31.0°C | 25.0°C | 19.1°C | 37.3°C | 11.9°C | 13 mm | 64% | 1.2 m/s | 6.7 |
| 2010 | 30.1°C | 25.3°C | 20.5°C | 33.6°C | 14.9°C | 86 mm | 73% | 1.1 m/s | 6.3 |
| 2009 | 27.3°C | 23.3°C | 19.4°C | 32.5°C | 12.7°C | 190 mm | 81% | 1.3 m/s | 5.3 |
| 2008 | 29.6°C | 24.1°C | 18.6°C | 34.7°C | 13.3°C | 57 mm | 65% | 1.3 m/s | 6.7 |
| 2007 | 29.0°C | 23.6°C | 18.3°C | 33.2°C | 11.3°C | 23 mm | 64% | 1.4 m/s | 6.6 |
| 2006 | 30.2°C | 24.2°C | 18.3°C | 36.1°C | 11.9°C | 36 mm | 61% | 1.2 m/s | 6.4 |
| 2005 | 28.1°C | 22.8°C | 17.6°C | 32.7°C | 11.9°C | 120 mm | 72% | 1.1 m/s | 6.2 |
| 2004 | 30.7°C | 25.5°C | 20.3°C | 36.5°C | 10.5°C | 81 mm | 68% | 1.2 m/s | 6.6 |
| 2003 | 28.4°C | 24.0°C | 19.5°C | 32.1°C | 14.6°C | 149 mm | 80% | 1.1 m/s | 5.5 |
| 2002 | 30.0°C | 24.3°C | 18.6°C | 35.6°C | 10.6°C | 48 mm | 65% | 1.3 m/s | 6.6 |
| 2001 | 30.7°C | 24.6°C | 18.5°C | 36.1°C | 15.2°C | 32 mm | 63% | 1.2 m/s | 6.6 |
| 2000 | 31.3°C | 25.6°C | 19.8°C | 36.0°C | 15.0°C | 28 mm | 65% | 1.2 m/s | 6.8 |
| 1999 | 29.1°C | 23.4°C | 17.7°C | 33.5°C | 8.5°C | 57 mm | 67% | 1.2 m/s | 6.4 |
| 1998 | 28.9°C | 24.3°C | 19.6°C | 33.2°C | 14.0°C | 44 mm | 79% | 1.1 m/s | 6.5 |
| 1997 | 27.2°C | 22.2°C | 17.2°C | 31.7°C | 10.9°C | 73 mm | 70% | 1.3 m/s | 6.1 |
| 1996 | 31.1°C | 25.4°C | 19.7°C | 36.2°C | 9.2°C | 16 mm | 67% | 1.1 m/s | 6.7 |
| 1995 | 29.9°C | 24.9°C | 19.9°C | 34.6°C | 13.1°C | 69 mm | 70% | 1.2 m/s | 6.2 |
| 1994 | 28.4°C | 23.1°C | 17.8°C | 33.9°C | 12.1°C | 102 mm | 67% | 1.2 m/s | 6.3 |
| 1993 | 27.4°C | 22.8°C | 18.3°C | 31.4°C | 12.5°C | 41 mm | 75% | 1.1 m/s | 6.1 |
| 1992 ❄️ | 27.1°C | 21.6°C | 16.2°C | 33.5°C | 7.0°C | 79 mm | 72% | 1.2 m/s | 5.8 |
| 1991 | 28.6°C | 25.3°C | 21.9°C | 33.6°C | 18.8°C | 158 mm | 83% | 1.1 m/s | 5.5 |
| 1990 | 29.8°C | 24.4°C | 19.0°C | 35.6°C | 12.0°C | 42 mm | 65% | 1.2 m/s | 6.2 |
| 1989 | 28.6°C | 23.1°C | 17.6°C | 36.6°C | 9.8°C | 60 mm | 64% | 1.2 m/s | 6.2 |
| 1988 | 27.9°C | 22.5°C | 17.0°C | 32.5°C | 11.8°C | 66 mm | 68% | 1.1 m/s | 6.3 |
| 1987 | 27.1°C | 22.8°C | 18.6°C | 31.1°C | 12.7°C | 47 mm | 79% | 1.1 m/s | 6.3 |
| 1986 | 29.8°C | 24.2°C | 18.6°C | 36.3°C | 12.8°C | 52 mm | 63% | 1.1 m/s | 6.3 |
| 1985 | 30.0°C | 24.2°C | 18.4°C | 34.8°C | 12.6°C | 83 mm | 64% | 1.1 m/s | 6.1 |
| 1984 | 26.5°C | 22.0°C | 17.5°C | 30.3°C | 10.5°C | 96 mm | 77% | 1.2 m/s | 5.8 |
| 1983 | 26.6°C | 22.2°C | 17.9°C | 30.5°C | 10.7°C | 32 mm | 78% | 1.1 m/s | — |
| 1982 | 29.0°C | 23.9°C | 18.8°C | 33.4°C | 12.9°C | 57 mm | 72% | 1 m/s | — |
| 1981 | 30.1°C | 23.6°C | 17.0°C | 35.0°C | 11.4°C | 90 mm | 58% | 1.2 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 29.1°C with lows near 18.9°C (mean 24°C), based on 45 years of NASA POWER data.
May averages 80 mm of rainfall in Savannah, one of the drier months. The wettest on record was 191 mm in 2017.
The hottest May reached 39.7°C in 2019. The coldest dipped to 7°C in 1992.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average May temperatures have risen by about 1.5°C. Daytime highs moved from 28.4°C to 29.5°C and overnight lows from 17.9°C to 19.8°C over the same span.
May is one of the warmer months of the year in Savannah and one of the drier months, so plan for around 29.1°C daytime highs and 18.9°C at night.
Not quite — May is the 8th coolest month in Savannah, averaging 24°C.
For May in Savannah, pack light layers you can adjust through the day, with typical highs of 29.1°C and lows of 18.9°C. Bring an umbrella or light rain jacket too.
Relative humidity in May averages 71% — moderately humid.
Average wind speed in May is 1.2 m/s. The windiest May on record averaged 1.4 m/s (2007).
The wettest May on record was 2017 with 191 mm. On average, May sees 80 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 Savannah 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.
