May weather in Santee, SC
The average temperature in Santee in May is 71.1°F (59.0°F–83.1°F). Average precipitation: 3.57 inches.
May is a spring month in Santee, and is warmer than the annual average of 63.9°F. Daily temperatures swing about 24.1°F between overnight low and afternoon high. Daylight averages about 13h 44m. For travel, May is a comfortable month to visit.
Avg High
83.1°F
Avg Low
59.0°F
Precipitation
3.57 in
Daylight
13h 44m
May records in Santee
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 87.1°F (2025) | 39.9°F (2018) | 0.48 in (2024) |
| May 2 | 87.1°F (2025) | 44.1°F (2018) | 0.38 in (2017) |
| May 3 | 91.0°F (2010) | 44.1°F (2023) | 0.54 in (2016) |
| May 4 | 91.0°F (2010) | 43.0°F (2023) | 1.00 in (2021) |
| May 5 | 88.0°F (2021) | 43.0°F (2023) | 0.82 in (2021) |
| May 6 | 93.0°F (2014) | 46.0°F (2016) | 1.34 in (2024) |
| May 7 | 91.0°F (2014) | 46.9°F (2016) | 0.53 in (2024) |
| May 8 | 91.9°F (2010) | 42.1°F (2020) | 0.17 in (2013) |
| May 9 | 91.9°F (2014) | 42.1°F (2020) | 1.24 in (2025) |
| May 10 | 91.9°F (2023) | 43.0°F (2020) | 1.16 in (2012) |
| May 11 | 91.0°F (2011) | 45.0°F (2020) | 1.35 in (2025) |
| May 12 | 93.9°F (2018) | 45.0°F (2020) | 0.78 in (2015) |
| May 13 | 95.0°F (2018) | 46.0°F (2020) | 1.00 in (2025) |
| May 14 | 93.9°F (2018) | 46.0°F (2020) | 2.46 in (2017) |
| May 15 | 88.0°F (2023) | 46.0°F (2021) | 0.66 in (2024) |
| May 16 | 90.0°F (2010) | 46.9°F (2021) | 3.13 in (2014) |
| May 17 | 91.0°F (2010) | 46.0°F (2014) | 0.78 in (2018) |
| May 18 | 91.9°F (2019) | 46.0°F (2014) | 1.28 in (2012) |
| May 19 | 93.9°F (2019) | 46.9°F (2011) | 0.71 in (2023) |
| May 20 | 93.9°F (2022) | 48.9°F (2014) | 0.57 in (2013) |
| May 21 | 93.9°F (2022) | 50.0°F (2014) | 1.95 in (2020) |
| May 22 | 93.9°F (2019) | 55.9°F (2014) | 0.72 in (2022) |
| May 23 | 95.0°F (2011) | 52.0°F (2016) | 1.43 in (2017) |
| May 24 | 95.0°F (2011) | 51.1°F (2016) | 1.20 in (2017) |
| May 25 | 96.1°F (2019) | 48.9°F (2013) | 0.70 in (2018) |
| May 26 | 98.1°F (2019) | 48.9°F (2013) | 1.28 in (2025) |
| May 27 | 99.0°F (2019) | 48.0°F (2013) | 0.65 in (2025) |
| May 28 | 99.0°F (2019) | 48.9°F (2013) | 1.79 in (2020) |
| May 29 | 100.9°F (2019) | 57.0°F (2015) | 1.20 in (2016) |
| May 30 | 100.9°F (2019) | 57.9°F (2015) | 6.30 in (2012) |
| May 31 | 100.0°F (2019) | 51.1°F (2021) | 0.67 in (2025) |