Weather in Jacksonville in April
United States · 20-year averages, April
Prime time. April is about as good as Jacksonville gets. Highs average 27.4 °C, lows 14.6 °C, and rain falls on 8 days — nothing in the month is working against you.
April ranks 3 of 12 in Jacksonville. Only November scores clearly higher, and the difference is small enough to be settled by price rather than weather.
Rain on 8 days, 2 of them heavy. Enough to need a plan B, not enough to need a plan around it. Nothing specialised needed — this is the month you pack for the trip rather than for the weather.
What the averages hide
Averages flatten a month, and this one hides a few things: 8 days top 30 °C — hot spells arrive, but they break. Across the twenty years measured, the hottest April day reached 35.9 °C and the coldest night fell to 1.8 °C, and the wettest single day dropped 64 mm — roughly 84% of the month's rain in one day.
April is moderately variable: 18 mm in the driest year against 168 mm in the wettest, around an average of 76 mm. Roughly two Aprils in three land near that average, and the third does something else entirely.
Wind is light at 2.5 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 71%.
How April sits in the year
The month is on the way up: 4.1 °C warmer than March, and May adds another 3.8 °C. Late in the month feels noticeably different from the start of it, which is worth knowing if the trip is short.
Daylight in April
12.9 hours of daylight, gaining 0.9 hours across the month. That is between Jacksonville's extremes of 14.1 and 10.2 hours, so days are long enough not to constrain the plan.
Sea temperature
The sea sits at about 21.8 °C in April — comfortable for a proper swim. The sea peaks at 28.4 °C in August and bottoms out at 19.5 °C — water lags the air by a month or two, which is why the best swimming often comes after the best weather.
How busy it gets
Peak season. Expect the highest prices of the year and to be booking well ahead.
Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.
April in Jacksonville versus nearby
If Jacksonville is one option among several, the nearby comparison is worth making. Tallahassee is close enough to be a coin toss — within a degree on temperature, the same number of rain days. Tampa is close enough to be a coin toss — within a degree on temperature, 1 day more rain.
So: April is effectively as good as it gets here — 3 points behind November, which is inside the margin where the weather stops being the deciding factor and price starts being it.
Every month in Jacksonville
| Month | High °C | Low °C | Rain days | Rain mm | Humidity % | Daylight h | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|
| January | 17.7 | 6 | 8 | 73 | 80 | 10.4 | 20 | 77 |
| February | 20 | 7.9 | 8 | 82 | 80 | 11.1 | 19.5 | 84 |
| March | 23.3 | 10.8 | 9 | 82 | 76 | 11.9 | 20 | 81 |
| April | 27.4 | 14.6 | 8 | 76 | 71 | 12.9 | 21.8 | 83 |
| May | 31.2 | 18.8 | 10 | 90 | 68 | 13.7 | 24.3 | 61 |
| June | 32.4 | 22.4 | 21 | 187 | 76 | 14.1 | 26.9 | 41 |
| July | 32.9 | 23.3 | 23 | 158 | 79 | 13.9 | 28.1 | 38 |
| August | 32.6 | 23.5 | 24 | 176 | 81 | 13.3 | 28.4 | 39 |
| September | 30.7 | 21.8 | 16 | 147 | 81 | 12.4 | 28.1 | 50 |
| October | 27.3 | 16.9 | 10 | 82 | 80 | 11.5 | 26.6 | 78 |
| November | 22.9 | 11.4 | 7 | 53 | 79 | 10.6 | 23.8 | 86 |
| December | 19.8 | 8.3 | 8 | 80 | 82 | 10.2 | 21.6 | 82 |
See all twelve months in Jacksonville, or where else to go in April.
Planning the rest of the trip
- Flight time to Jacksonville how long you are actually in the air
- Jacksonville time zone and the difference from home
- Days until your trip count down to the departure date
- Gyms & clubs in Jacksonville keep training while you are there