April weather in Port Isabel, TX
The average temperature in Port Isabel in April is 73.9°F (67.0°F–80.8°F). Average precipitation: 1.59 inches.
April is a spring month in Port Isabel, and is cooler than the annual average of 73.9°F. Daily temperatures swing about 13.8°F between overnight low and afternoon high. Expect about 4 days with precipitation. Daylight averages about 12h 37m. For travel, April is a comfortable month to visit.
Avg High
80.8°F
Avg Low
67.0°F
Precipitation
1.59 in
Daylight
12h 37m
April records in Port Isabel
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| April 1 | 98.1°F (1989) | 26.1°F (2010) | 2.35 in (2004) |
| April 2 | 91.0°F (1983) | 35.1°F (2010) | 0.59 in (1953) |
| April 3 | 90.0°F (1975) | 39.9°F (2010) | 1.45 in (1944) |
| April 4 | 89.1°F (1955) | 46.9°F (1997) | 0.80 in (1933) |
| April 5 | 91.0°F (1999) | 52.0°F (1945) | 6.37 in (1991) |
| April 6 | 91.9°F (1953) | 46.9°F (1996) | 2.00 in (2026) |
| April 7 | 95.0°F (2022) | 46.0°F (2007) | 1.12 in (2023) |
| April 8 | 88.0°F (1953) | 37.0°F (1938) | 1.13 in (2003) |
| April 9 | 91.0°F (1984) | 46.0°F (1938) | 2.80 in (1929) |
| April 10 | 93.9°F (2008) | 48.0°F (1938) | 0.88 in (1985) |
| April 11 | 93.0°F (2008) | 50.0°F (1988) | 2.52 in (1990) |
| April 12 | 93.9°F (2008) | 50.0°F (1932) | 1.71 in (1978) |
| April 13 | 96.1°F (2020) | 46.9°F (1997) | 0.70 in (1997) |
| April 14 | 93.0°F (2022) | 45.0°F (1980) | 2.20 in (1989) |
| April 15 | 86.0°F (2006) | 52.0°F (1980) | 0.49 in (2010) |
| April 16 | 91.0°F (2023) | 50.0°F (2014) | 4.40 in (1977) |
| April 17 | 89.1°F (2006) | 53.1°F (2007) | 2.73 in (1960) |
| April 18 | 93.9°F (1953) | 54.0°F (2014) | 2.54 in (1992) |
| April 19 | 97.0°F (2013) | 52.0°F (1940) | 0.30 in (1938) |
| April 20 | 96.1°F (2020) | 46.9°F (2013) | 1.01 in (2022) |
| April 21 | 91.0°F (2011) | 57.9°F (1931) | 1.78 in (1942) |
| April 22 | 91.0°F (1984) | 53.1°F (2012) | 1.24 in (1936) |
| April 23 | 91.9°F (1958) | 54.0°F (1982) | 7.45 in (1956) |
| April 24 | 93.0°F (1953) | 53.1°F (1982) | 1.58 in (1949) |
| April 25 | 93.9°F (1945) | 52.0°F (2013) | 0.35 in (2001) |
| April 26 | 93.9°F (1964) | 57.0°F (1997) | 1.00 in (1941) |
| April 27 | 93.0°F (1933) | 54.0°F (1997) | 2.00 in (2008) |
| April 28 | 91.9°F (2005) | 54.0°F (2008) | 2.45 in (1934) |
| April 29 | 91.9°F (2020) | 55.9°F (1996) | 5.05 in (1930) |
| April 30 | 91.9°F (1954) | 57.0°F (1965) | 2.80 in (1976) |