September weather in Royal Palm Beach, FL
The average temperature in Royal Palm Beach in September is 81.9°F (75.8°F–88.0°F). Average precipitation: 7.96 inches.
September is a fall month in Royal Palm Beach, and is warmer than the annual average of 75.8°F. Daily temperatures swing about 12.2°F between overnight low and afternoon high. Expect about 17 days with precipitation. Daylight averages about 12h 9m. For travel, September is a wet month.
Avg High
88.0°F
Avg Low
75.8°F
Precipitation
7.96 in
Daylight
12h 9m
September records in Royal Palm Beach
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 93.9°F (1947) | 70.0°F (1942) | 2.38 in (1977) |
| September 2 | 93.0°F (1951) | 69.1°F (1975) | 4.34 in (1977) |
| September 3 | 96.1°F (1951) | 70.0°F (1958) | 2.17 in (1979) |
| September 4 | 95.0°F (1951) | 68.0°F (1967) | 5.96 in (2004) |
| September 5 | 93.9°F (1951) | 69.1°F (2009) | 6.26 in (2004) |
| September 6 | 95.0°F (1963) | 69.1°F (2008) | 2.18 in (2014) |
| September 7 | 95.0°F (1962) | 71.1°F (1970) | 2.40 in (1995) |
| September 8 | 93.0°F (1949) | 70.0°F (1950) | 5.70 in (1952) |
| September 9 | 93.9°F (1949) | 70.0°F (1971) | 2.40 in (2023) |
| September 10 | 93.9°F (1954) | 69.1°F (1981) | 3.47 in (1949) |
| September 11 | 95.0°F (1948) | 68.0°F (1984) | 2.25 in (1963) |
| September 12 | 93.0°F (1960) | 70.0°F (1952) | 4.47 in (2001) |
| September 13 | 96.1°F (2024) | 70.0°F (1958) | 5.11 in (2001) |
| September 14 | 95.0°F (1961) | 70.0°F (1938) | 2.85 in (1979) |
| September 15 | 93.9°F (1950) | 68.0°F (1938) | 2.20 in (1945) |
| September 16 | 95.0°F (1990) | 66.9°F (1947) | 3.46 in (1998) |
| September 17 | 95.0°F (1938) | 68.0°F (1961) | 5.19 in (1960) |
| September 18 | 93.9°F (1951) | 68.0°F (1985) | 4.30 in (1975) |
| September 19 | 93.9°F (1951) | 70.0°F (1964) | 4.33 in (1990) |
| September 20 | 93.0°F (2018) | 70.0°F (1941) | 3.12 in (1981) |
| September 21 | 93.9°F (1942) | 70.0°F (1938) | 4.33 in (1941) |
| September 22 | 93.9°F (1942) | 66.0°F (1938) | 4.43 in (1948) |
| September 23 | 93.9°F (1990) | 70.0°F (1981) | 3.60 in (1960) |
| September 24 | 93.0°F (1957) | 68.0°F (1967) | 3.40 in (1983) |
| September 25 | 93.0°F (1960) | 69.1°F (1967) | 8.79 in (2004) |
| September 26 | 93.0°F (1958) | 68.0°F (1983) | 3.43 in (2023) |
| September 27 | 93.0°F (1942) | 68.0°F (1983) | 4.10 in (1947) |
| September 28 | 93.9°F (2024) | 68.0°F (1947) | 2.45 in (1990) |
| September 29 | 93.9°F (1980) | 66.9°F (1983) | 2.99 in (2010) |
| September 30 | 95.0°F (1980) | 66.0°F (2022) | 3.65 in (1968) |