April is one of the cooler months of the year in Saint Augustine, with average highs near 24°C and lows around 17.9°C (mean 21°C). It is one of the drier months, averaging 73 mm of rainfall and 75% relative humidity across the period.
April is one of the cooler months of the year in Saint Augustine. Across 45 years of records, the warmest April in Saint Augustine was 2002 — when the month averaged 23.3°C — while the coldest was 1987 at 18.1°C. Typical April days reach 24°C with nights near 17.9°C. The long-term trend is warming, about 0.4°C per decade.
April is one of the drier months in Saint Augustine, averaging 73 mm of rainfall. The wettest April on record was 1982 with 198 mm, while the driest was 2001 at 11 mm.
Relative humidity in Saint Augustine during April averages 75%. The most humid April was 2015 at 84%, and the least humid was 1986 at 66%.
April receives about 6 kWh/m²/day of solar energy in Saint Augustine. The sunniest Aprils were 1986 and 2025 at 6.8 kWh/m²/day, and the cloudiest were 1988 and 2015 at 5.2.
Average wind speed in Saint Augustine during April is 2.5 m/s. The windiest April was 1997 at 3 m/s, while the calmest was 2015 at 1.7 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 20.2°C | 20.8°C | 20.8°C | 21.4°C | 21.9°C | +1.7°C |
| Avg High | 23.4°C | 23.7°C | 23.9°C | 24.4°C | 25.0°C | +1.6°C |
| Avg Low | 17.0°C | 17.9°C | 17.7°C | 18.4°C | 18.8°C | +1.8°C |
| Avg Rain | 90 mm | 72 mm | 58 mm | 73 mm | 69 mm | -22 mm |
April temperatures in Saint Augustine have risen by about 1.5°C between 1981–1985 and 2021–2025.
April has ranged from a record low of 6.8°C (1987) to a record high of 31.8°C (1986).
Rainfall in April is one of the drier months, averaging 73 mm, with a wettest year of 198 mm.
One of the best times to visit Saint Augustine
April is one of the best times to visit Saint Augustine. Expect days averaging 24°C and nights around 17.9°C (mean 21°C) — cooler than Saint Augustine's yearly average — with moderate rainfall (73 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 | 26.0°C | 22.8°C | 19.6°C | 30.3°C | 15.0°C | 17 mm | 75% | 2.3 m/s | 6.8 |
| 2024 | 24.8°C | 21.3°C | 17.8°C | 31.5°C | 13.9°C | 25 mm | 73% | 2.4 m/s | 6.5 |
| 2023 | 25.6°C | 22.8°C | 20.0°C | 29.4°C | 14.9°C | 94 mm | 76% | 2.4 m/s | 5.6 |
| 2022 | 24.4°C | 21.7°C | 19.0°C | 28.0°C | 12.9°C | 117 mm | 77% | 2.6 m/s | 6.2 |
| 2021 | 24.0°C | 20.8°C | 17.5°C | 30.0°C | 11.4°C | 59 mm | 73% | 2.2 m/s | 5.9 |
| 2020 | 25.0°C | 22.1°C | 19.1°C | 29.2°C | 14.5°C | 100 mm | 74% | 2.4 m/s | 5.5 |
| 2019 | 24.5°C | 21.5°C | 18.6°C | 27.8°C | 13.9°C | 59 mm | 78% | 2.3 m/s | 6.2 |
| 2018 | 23.2°C | 20.1°C | 17.0°C | 27.1°C | 11.5°C | 117 mm | 79% | 2.5 m/s | 5.9 |
| 2017 | 25.5°C | 22.5°C | 19.5°C | 29.4°C | 14.7°C | 37 mm | 73% | 2.4 m/s | 6.5 |
| 2016 | 23.8°C | 21.2°C | 18.6°C | 29.2°C | 15.1°C | 103 mm | 76% | 2.7 m/s | 6.2 |
| 2015 | 25.1°C | 22.3°C | 19.6°C | 28.7°C | 17.3°C | 104 mm | 84% | 1.7 m/s | 5.2 |
| 2014 | 23.9°C | 20.8°C | 17.7°C | 28.4°C | 12.7°C | 112 mm | 82% | 2.1 m/s | 5.5 |
| 2013 | 23.8°C | 21.1°C | 18.4°C | 28.0°C | 14.5°C | 72 mm | 80% | 2.4 m/s | 5.4 |
| 2012 | 25.5°C | 22.1°C | 18.7°C | 29.3°C | 13.6°C | 52 mm | 72% | 2.5 m/s | 6.4 |
| 2011 | 25.9°C | 22.4°C | 18.8°C | 30.2°C | 13.2°C | 24 mm | 74% | 2.2 m/s | 6.7 |
| 2010 | 23.2°C | 20.3°C | 17.4°C | 25.8°C | 12.6°C | 52 mm | 80% | 2.3 m/s | 6.3 |
| 2009 | 23.7°C | 20.5°C | 17.4°C | 29.0°C | 9.9°C | 50 mm | 74% | 2.7 m/s | 6.3 |
| 2008 | 23.3°C | 20.6°C | 17.8°C | 27.4°C | 10.3°C | 60 mm | 76% | 2.5 m/s | 6.1 |
| 2007 | 23.9°C | 20.4°C | 16.8°C | 28.5°C | 10.4°C | 41 mm | 68% | 2.6 m/s | 6.2 |
| 2006 | 25.3°C | 22.0°C | 18.8°C | 28.8°C | 14.7°C | 58 mm | 72% | 2.5 m/s | 6.4 |
| 2005 | 21.8°C | 18.9°C | 16.0°C | 25.6°C | 12.1°C | 119 mm | 76% | 2.8 m/s | 6.4 |
| 2004 | 23.6°C | 20.3°C | 17.1°C | 27.0°C | 10.4°C | 78 mm | 71% | 2.6 m/s | 6.3 |
| 2003 | 23.3°C | 20.4°C | 17.4°C | 26.0°C | 10.2°C | 67 mm | 81% | 2.2 m/s | 6.1 |
| 2002 🔥 | 26.0°C | 23.3°C | 20.5°C | 31.7°C | 16.3°C | 34 mm | 76% | 2.3 m/s | 5.7 |
| 2001 | 24.1°C | 21.1°C | 18.1°C | 29.6°C | 11.8°C | 11 mm | 72% | 2.6 m/s | 6.3 |
| 2000 | 23.5°C | 20.1°C | 16.6°C | 27.0°C | 10.2°C | 67 mm | 72% | 2.7 m/s | 6.4 |
| 1999 | 26.2°C | 22.6°C | 19.0°C | 31.3°C | 13.6°C | 42 mm | 72% | 2.4 m/s | 6.1 |
| 1998 | 23.0°C | 20.2°C | 17.5°C | 27.0°C | 12.1°C | 40 mm | 80% | 2.5 m/s | 5.9 |
| 1997 | 23.5°C | 20.6°C | 17.7°C | 27.1°C | 11.8°C | 170 mm | 73% | 3 m/s | 5.4 |
| 1996 | 23.2°C | 19.6°C | 16.1°C | 29.3°C | 10.8°C | 33 mm | 74% | 2.4 m/s | 6.1 |
| 1995 | 24.7°C | 21.7°C | 18.6°C | 30.7°C | 13.7°C | 52 mm | 74% | 2.3 m/s | 5.6 |
| 1994 | 24.7°C | 22.2°C | 19.7°C | 27.7°C | 14.2°C | 57 mm | 76% | 2.2 m/s | 5.9 |
| 1993 | 21.5°C | 18.6°C | 15.7°C | 24.5°C | 11.1°C | 40 mm | 74% | 2.9 m/s | 6.3 |
| 1992 | 22.1°C | 19.6°C | 17.2°C | 27.2°C | 10.9°C | 89 mm | 76% | 2.6 m/s | 5.7 |
| 1991 | 24.4°C | 22.2°C | 20.1°C | 28.5°C | 15.6°C | 133 mm | 84% | 2.2 m/s | 5.5 |
| 1990 | 23.6°C | 20.7°C | 17.7°C | 30.4°C | 11.2°C | 67 mm | 74% | 2.7 m/s | 6.1 |
| 1989 | 24.7°C | 21.1°C | 17.5°C | 30.8°C | 12.9°C | 89 mm | 73% | 2.5 m/s | 5.8 |
| 1988 | 24.0°C | 20.6°C | 17.3°C | 29.2°C | 10.5°C | 77 mm | 73% | 2.6 m/s | 5.2 |
| 1987 ❄️ | 21.4°C | 18.1°C | 14.7°C | 26.3°C | 6.8°C | 16 mm | 76% | 2.7 m/s | 6.4 |
| 1986 | 24.1°C | 20.4°C | 16.7°C | 31.8°C | 13.5°C | 17 mm | 66% | 2.5 m/s | 6.8 |
| 1985 | 24.0°C | 20.9°C | 17.9°C | 30.3°C | 13.0°C | 75 mm | 73% | 2.5 m/s | 5.5 |
| 1984 | 22.7°C | 19.6°C | 16.5°C | 27.5°C | 11.9°C | 156 mm | 81% | 2.5 m/s | 5.4 |
| 1983 | 21.6°C | 18.7°C | 15.7°C | 24.6°C | 10.7°C | 167 mm | 78% | 2.7 m/s | — |
| 1982 🌧️ | 22.9°C | 20.3°C | 17.8°C | 27.1°C | 11.4°C | 198 mm | 80% | 2.6 m/s | — |
| 1981 | 25.5°C | 22.3°C | 19.1°C | 30.0°C | 16.4°C | 19 mm | 71% | 2.3 m/s | — |
Actual recorded April data for each year, 1981–2025 — sourced from NASA POWER.
The average high in April is around 24°C with lows near 17.9°C (mean 21°C), based on 45 years of NASA POWER data.
April averages 73 mm of rainfall in Saint Augustine, one of the drier months. The wettest on record was 198 mm in 1982.
The hottest April reached 31.8°C in 1986. The coldest dipped to 6.8°C in 1987.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average April temperatures have risen by about 1.5°C. Daytime highs moved from 23.3°C to 25°C and overnight lows from 17.4°C to 18.8°C over the same span.
April is one of the cooler months of the year in Saint Augustine and one of the drier months, so plan for around 24°C daytime highs and 17.9°C at night.
Not quite — April is the 6th coolest month in Saint Augustine, averaging 21°C.
For April in Saint Augustine, pack light layers you can adjust through the day, with typical highs of 24°C and lows of 17.9°C. Bring an umbrella or light rain jacket too.
Relative humidity in April averages 75% — quite humid.
Average wind speed in April is 2.5 m/s. The windiest April on record averaged 3 m/s (1997).
The wettest April on record was 1982 with 198 mm. On average, April sees 73 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 Saint Augustine behaves each April, 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 April specifically, along with year-by-year records and how the month has changed over the decades.
