Jacksonville weather in April
In April, Jacksonville sees average daytime highs of 80°F and overnight lows near 59°F, with 2.3 in of rain across 6.9 wet days and about 12.7 hours of daylight. It is the 7th-warmest and 10th-wettest month of the year here.
Highs climb over the month, from about 78°F in the first days to 82°F by the end. The sky is clear or mostly clear about 41% of the time in April, and the air most often feels dry.
Daylight stretches from about 12 h 18 min at the start of April to 13 h 06 min by month's end. Set against the rest of the year, April is Jacksonville's 1st-clearest and 2nd-windiest month. For the whole year in context, see Jacksonville's year-round climate.
- Daytime high
- 80°
- 7th warmest
- Overnight low
- 59°
- 6th coldest
- Rainfall
- 2.3 in
- 6.9 wet days
- Daylight
- 12 h 42 min
- 6:05 AM – 6:49 PM
- Cloud cover
- 50%
- 1st clearest
- Wind
- 7 mph
- 2nd windiest
- Solar energy
- 5.9 kWh/m²
- Travel score
- 7.2
- out of 10
Jacksonville is city in Duval County, and largest city in State of Florida, United States.
- Density
- 446/km²
- people per km²
- Founded
- 1791
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in April
Highs climb over the month, from about 78°F in the first days to 82°F by the end.
A typical April day in Jacksonville reaches about 80°F in the afternoon and slips back to 59°F overnight — a 21°F spread between the day's warmth and the night's chill. On most days the high lands between 71°F and 87°F. Set against its neighbours, April runs about 6°F warmer than March and about 6°F cooler than May.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 77 | 77 | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 79 | 79 | 79 | 79 | 79 | 79 | 80 | 80 | 80 | 80 | 80 | 80 | 81 | 81 | 81 | 81 | 82 | 82 | 82 | 82 |
| Avg low (°F) | 56 | 56 | 56 | 56 | 57 | 57 | 57 | 57 | 57 | 58 | 58 | 58 | 58 | 58 | 58 | 58 | 59 | 59 | 59 | 59 | 59 | 60 | 60 | 60 | 60 | 61 | 61 | 61 | 61 | 62 |
| Avg high (°F) | Avg low (°F) | |
|---|---|---|
| 1 | 77 | 56 |
| 2 | 77 | 56 |
| 3 | 78 | 56 |
| 4 | 78 | 56 |
| 5 | 78 | 57 |
| 6 | 78 | 57 |
| 7 | 78 | 57 |
| 8 | 78 | 57 |
| 9 | 78 | 57 |
| 10 | 78 | 58 |
| 11 | 79 | 58 |
| 12 | 79 | 58 |
| 13 | 79 | 58 |
| 14 | 79 | 58 |
| 15 | 79 | 58 |
| 16 | 79 | 58 |
| 17 | 80 | 59 |
| 18 | 80 | 59 |
| 19 | 80 | 59 |
| 20 | 80 | 59 |
| 21 | 80 | 59 |
| 22 | 80 | 60 |
| 23 | 81 | 60 |
| 24 | 81 | 60 |
| 25 | 81 | 60 |
| 26 | 81 | 61 |
| 27 | 82 | 61 |
| 28 | 82 | 61 |
| 29 | 82 | 61 |
| 30 | 82 | 62 |
How April really feels in Jacksonville
Once humidity and wind are folded in, April averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.
April sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Jacksonville weather by month
How April compares with the rest of the year at a glance. April is the 7th-warmest and 10th-wettest month here — the current month is highlighted below.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 65° / 45° | 2.6 | 7.3 | 10.3 | 6.5 |
| Feb | 69° / 48° | 2.5 | 6.9 | 10.9 | 6.8 |
| Mar | 74° / 52° | 3.0 | 7.5 | 11.8 | 7.4 |
| Apr | 80° / 59° | 2.3 | 6.9 | 12.7 | 7.2 |
| May | 85° / 66° | 2.6 | 8.9 | 13.5 | 5.4 |
| Jun | 89° / 72° | 5.1 | 18.9 | 13.9 | 3.4 |
| Jul | 90° / 74° | 4.9 | 20.4 | 13.8 | 2.9 |
| Aug | 89° / 74° | 5.5 | 21.6 | 13.1 | 2.9 |
| Sep | 86° / 72° | 4.8 | 15.9 | 12.2 | 4.2 |
| Oct | 80° / 63° | 2.8 | 9.2 | 11.3 | 6.7 |
| Nov | 73° / 53° | 1.6 | 6 | 10.5 | 7.5 |
| Dec | 67° / 48° | 2.3 | 6.5 | 10.1 | 6.8 |
Cloud cover in April
The sky is clear or mostly clear about 41% of the time in April, the clearest month of the year.
Beyond those clear spells, partly cloudy skies cover about 18% of April, with mostly cloudy or overcast conditions the remaining 41%. Skies tend to open up as the month goes on.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 56 | 55 | 56 | 56 | 56 | 56 | 56 | 56 | 56 | 56 | 56 | 56 | 57 | 57 | 58 | 58 | 60 | 60 | 61 | 61 | 62 | 62 | 62 | 62 | 63 | 63 | 63 | 63 | 63 | 64 |
| Cloudier (%) | 44 | 45 | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 43 | 43 | 42 | 42 | 40 | 40 | 39 | 39 | 38 | 38 | 38 | 38 | 37 | 37 | 37 | 37 | 37 | 36 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 56 | 44 |
| 2 | 55 | 45 |
| 3 | 56 | 44 |
| 4 | 56 | 44 |
| 5 | 56 | 44 |
| 6 | 56 | 44 |
| 7 | 56 | 44 |
| 8 | 56 | 44 |
| 9 | 56 | 44 |
| 10 | 56 | 44 |
| 11 | 56 | 44 |
| 12 | 56 | 44 |
| 13 | 57 | 43 |
| 14 | 57 | 43 |
| 15 | 58 | 42 |
| 16 | 58 | 42 |
| 17 | 60 | 40 |
| 18 | 60 | 40 |
| 19 | 61 | 39 |
| 20 | 61 | 39 |
| 21 | 62 | 38 |
| 22 | 62 | 38 |
| 23 | 62 | 38 |
| 24 | 62 | 38 |
| 25 | 63 | 37 |
| 26 | 63 | 37 |
| 27 | 63 | 37 |
| 28 | 63 | 37 |
| 29 | 63 | 37 |
| 30 | 64 | 36 |
Chance of precipitation in April
Jacksonville gets around 2.3 in of rain over 6.9 wet days in April. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 23% and peaks near 24% on the wettest days.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 22 |
| Rain chance (%) | |
|---|---|
| 1 | 24 |
| 2 | 24 |
| 3 | 24 |
| 4 | 24 |
| 5 | 24 |
| 6 | 24 |
| 7 | 24 |
| 8 | 24 |
| 9 | 24 |
| 10 | 24 |
| 11 | 24 |
| 12 | 24 |
| 13 | 23 |
| 14 | 23 |
| 15 | 23 |
| 16 | 23 |
| 17 | 23 |
| 18 | 23 |
| 19 | 23 |
| 20 | 22 |
| 21 | 22 |
| 22 | 22 |
| 23 | 22 |
| 24 | 22 |
| 25 | 23 |
| 26 | 23 |
| 27 | 23 |
| 28 | 23 |
| 29 | 23 |
| 30 | 22 |
Humidity in April
Most of April feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, April lands in the dry band about 37% of days. Sticky, muggy-or-worse air turns up on roughly 15% of them.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 45 | 45 | 44 | 43 | 43 | 42 | 42 | 41 | 41 | 41 | 40 | 40 | 39 | 39 | 39 | 38 | 38 | 37 | 36 | 36 | 35 | 35 | 34 | 33 | 32 | 31 | 30 | 29 | 28 | 27 |
| Comfortable (%) | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 20 | 21 | 21 | 21 |
| Humid (%) | 23 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 25 | 25 | 26 | 26 | 27 | 28 | 28 | 29 | 29 | 29 | 29 | 30 | 30 | 30 | 30 | 30 |
| Muggy (%) | 8 | 8 | 9 | 10 | 10 | 11 | 11 | 12 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 15 | 15 | 16 | 16 | 17 | 18 | 18 | 19 | 20 | 21 |
| Oppressive (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|---|---|
| 1 | 45 | 24 | 23 | 8 | 0 |
| 2 | 45 | 23 | 24 | 8 | 0 |
| 3 | 44 | 23 | 24 | 9 | 0 |
| 4 | 43 | 23 | 24 | 10 | 0 |
| 5 | 43 | 23 | 24 | 10 | 0 |
| 6 | 42 | 23 | 24 | 11 | 0 |
| 7 | 42 | 23 | 23 | 11 | 0 |
| 8 | 41 | 23 | 23 | 12 | 1 |
| 9 | 41 | 23 | 23 | 13 | 1 |
| 10 | 41 | 23 | 23 | 13 | 1 |
| 11 | 40 | 23 | 23 | 13 | 1 |
| 12 | 40 | 22 | 23 | 14 | 1 |
| 13 | 39 | 22 | 24 | 14 | 1 |
| 14 | 39 | 22 | 24 | 14 | 1 |
| 15 | 39 | 22 | 25 | 14 | 1 |
| 16 | 38 | 22 | 25 | 14 | 1 |
| 17 | 38 | 22 | 26 | 14 | 1 |
| 18 | 37 | 22 | 26 | 14 | 1 |
| 19 | 36 | 22 | 27 | 14 | 1 |
| 20 | 36 | 21 | 28 | 14 | 1 |
| 21 | 35 | 21 | 28 | 15 | 1 |
| 22 | 35 | 21 | 29 | 15 | 1 |
| 23 | 34 | 21 | 29 | 16 | 1 |
| 24 | 33 | 20 | 29 | 16 | 1 |
| 25 | 32 | 20 | 29 | 17 | 1 |
| 26 | 31 | 20 | 30 | 18 | 1 |
| 27 | 30 | 20 | 30 | 18 | 1 |
| 28 | 29 | 21 | 30 | 19 | 1 |
| 29 | 28 | 21 | 30 | 20 | 2 |
| 30 | 27 | 21 | 30 | 21 | 2 |
Wind in April
Winds average 7 mph in April.
Across April, daily wind ranges from about 7 mph on the calmest days to 7 mph at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (mph) | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (mph) | Feels | |
|---|---|---|
| 1 | 7 | calm |
| 2 | 7 | calm |
| 3 | 7 | calm |
| 4 | 7 | calm |
| 5 | 7 | calm |
| 6 | 7 | calm |
| 7 | 7 | calm |
| 8 | 7 | calm |
| 9 | 7 | calm |
| 10 | 7 | calm |
| 11 | 7 | calm |
| 12 | 7 | calm |
| 13 | 7 | calm |
| 14 | 7 | calm |
| 15 | 7 | calm |
| 16 | 7 | calm |
| 17 | 7 | calm |
| 18 | 7 | calm |
| 19 | 7 | calm |
| 20 | 7 | calm |
| 21 | 7 | calm |
| 22 | 7 | calm |
| 23 | 7 | calm |
| 24 | 7 | calm |
| 25 | 7 | calm |
| 26 | 7 | calm |
| 27 | 7 | calm |
| 28 | 7 | calm |
| 29 | 7 | calm |
| 30 | 7 | calm |
Sunrise & sunset in April
Daylight runs from about 12 h 18 min at the start of April to 13 h 06 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 48 minutes over April. Sunrise moves from 6:23 AM to 5:50 AM, and sunset from 6:40 PM to 6:58 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 12.3 | 12.3 | 12.3 | 12.4 | 12.4 | 12.4 | 12.5 | 12.5 | 12.5 | 12.6 | 12.6 | 12.6 | 12.6 | 12.7 | 12.7 | 12.7 | 12.8 | 12.8 | 12.8 | 12.9 | 12.9 | 12.9 | 12.9 | 13.0 | 13.0 | 13.0 | 13.1 | 13.1 | 13.1 | 13.1 |
| Sunrise (AM) | 6:23 | 6:22 | 6:21 | 6:19 | 6:18 | 6:17 | 6:16 | 6:14 | 6:13 | 6:12 | 6:11 | 6:10 | 6:08 | 6:07 | 6:06 | 6:05 | 6:04 | 6:03 | 6:01 | 6:00 | 5:59 | 5:58 | 5:57 | 5:56 | 5:55 | 5:54 | 5:53 | 5:52 | 5:51 | 5:50 |
| Sunset (PM) | 6:40 | 6:40 | 6:41 | 6:41 | 6:42 | 6:43 | 6:43 | 6:44 | 6:44 | 6:45 | 6:46 | 6:46 | 6:47 | 6:48 | 6:48 | 6:49 | 6:50 | 6:50 | 6:51 | 6:51 | 6:52 | 6:53 | 6:53 | 6:54 | 6:55 | 6:55 | 6:56 | 6:57 | 6:57 | 6:58 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.3 | 6:23 | 6:40 |
| 2 | 12.3 | 6:22 | 6:40 |
| 3 | 12.3 | 6:21 | 6:41 |
| 4 | 12.4 | 6:19 | 6:41 |
| 5 | 12.4 | 6:18 | 6:42 |
| 6 | 12.4 | 6:17 | 6:43 |
| 7 | 12.5 | 6:16 | 6:43 |
| 8 | 12.5 | 6:14 | 6:44 |
| 9 | 12.5 | 6:13 | 6:44 |
| 10 | 12.6 | 6:12 | 6:45 |
| 11 | 12.6 | 6:11 | 6:46 |
| 12 | 12.6 | 6:10 | 6:46 |
| 13 | 12.6 | 6:08 | 6:47 |
| 14 | 12.7 | 6:07 | 6:48 |
| 15 | 12.7 | 6:06 | 6:48 |
| 16 | 12.7 | 6:05 | 6:49 |
| 17 | 12.8 | 6:04 | 6:50 |
| 18 | 12.8 | 6:03 | 6:50 |
| 19 | 12.8 | 6:01 | 6:51 |
| 20 | 12.9 | 6:00 | 6:51 |
| 21 | 12.9 | 5:59 | 6:52 |
| 22 | 12.9 | 5:58 | 6:53 |
| 23 | 12.9 | 5:57 | 6:53 |
| 24 | 13.0 | 5:56 | 6:54 |
| 25 | 13.0 | 5:55 | 6:55 |
| 26 | 13.0 | 5:54 | 6:55 |
| 27 | 13.1 | 5:53 | 6:56 |
| 28 | 13.1 | 5:52 | 6:57 |
| 29 | 13.1 | 5:51 | 6:57 |
| 30 | 13.1 | 5:50 | 6:58 |
Solar energy in April
Average shortwave solar energy reaching the ground each day in April, about 5.9 kWh/m².
For context, solar energy here swings from a low near 2.77 kWh/m² to a high of 6.31 kWh/m² in May across the year — April's 5.9 kWh/m² sits near the top of that range.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 5.4 | 5.5 | 5.5 | 5.5 | 5.5 | 5.6 | 5.6 | 5.6 | 5.7 | 5.7 | 5.7 | 5.7 | 5.8 | 5.8 | 5.8 | 5.9 | 5.9 | 5.9 | 6.0 | 6.0 | 6.0 | 6.1 | 6.1 | 6.1 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.3 |
| Level | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 5.4 | Bright |
| 2 | 5.5 | Bright |
| 3 | 5.5 | Bright |
| 4 | 5.5 | Bright |
| 5 | 5.5 | Bright |
| 6 | 5.6 | Bright |
| 7 | 5.6 | Bright |
| 8 | 5.6 | Bright |
| 9 | 5.7 | Bright |
| 10 | 5.7 | Bright |
| 11 | 5.7 | Bright |
| 12 | 5.7 | Bright |
| 13 | 5.8 | Bright |
| 14 | 5.8 | Bright |
| 15 | 5.8 | Bright |
| 16 | 5.9 | Bright |
| 17 | 5.9 | Bright |
| 18 | 5.9 | Bright |
| 19 | 6.0 | Bright |
| 20 | 6.0 | Intense |
| 21 | 6.0 | Intense |
| 22 | 6.1 | Intense |
| 23 | 6.1 | Intense |
| 24 | 6.1 | Intense |
| 25 | 6.2 | Intense |
| 26 | 6.2 | Intense |
| 27 | 6.2 | Intense |
| 28 | 6.2 | Intense |
| 29 | 6.2 | Intense |
| 30 | 6.3 | Intense |
Hazard calendar for Jacksonville
None of Jacksonville's seasonal hazards are active in April. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.
Jacksonville sits in the Atlantic hurricane belt; the season peaks August–October.
Jacksonville's rainy season runs May–October, when most of the year's rain falls.
Is April a good time to visit Jacksonville?
Our two travel scores rate April for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
April is one of the better times to visit Jacksonville for general sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Jacksonville in April
From April's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In April, Jacksonville sees daytime highs around 80°F and nights near 59°F. Worth packing: light clothes and sun protection. About 7 days see rain.
Sea temperature near Jacksonville in April
The nearest coast averages about 69°F in April — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 17 mi away) is warmest in August at about 82°F and coldest in February near 61°F.
It's comfortable for a long swim from Apr 13 to Nov 28 — about 7.6 months when the water holds above 68°F.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°F) | 62 | 61 | 63 | 69 | 75 | 80 | 82 | 82 | 82 | 78 | 70 | 65 |
| Comfort | Cool | Cool | Cool | Refreshing | Refreshing | Warm | Warm | Tropical | Warm | Warm | Refreshing | Cool |
| Sea temperature (°F) | Comfort | |
|---|---|---|
| Jan | 62 | Cool |
| Feb | 61 | Cool |
| Mar | 63 | Cool |
| Apr | 69 | Refreshing |
| May | 75 | Refreshing |
| Jun | 80 | Warm |
| Jul | 82 | Warm |
| Aug | 82 | Tropical |
| Sep | 82 | Warm |
| Oct | 78 | Warm |
| Nov | 70 | Refreshing |
| Dec | 65 | Cool |
UV index in Jacksonville in April
Clear-sky midday UV in April peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Jacksonville peaks around June 22 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 4 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 4 | 6 | 7 | 7 | 8 | 11 | 10 | 10 | 8 | 6 | 5 | 3 |
| Level | Moderate | High | High | High | Very high | Extreme | Extreme | Very high | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 4 | Moderate |
| Feb | 6 | High |
| Mar | 7 | High |
| Apr | 7 | High |
| May | 8 | Very high |
| Jun | 11 | Extreme |
| Jul | 10 | Extreme |
| Aug | 10 | Very high |
| Sep | 8 | Very high |
| Oct | 6 | High |
| Nov | 5 | Moderate |
| Dec | 3 | Moderate |
Air quality in Jacksonville in April
Average fine-particle pollution (PM2.5) through the year — so you can see where April falls, not just the annual average.
Air quality in Jacksonville is worst in July — around 18 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (December, 7 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 9 | 13 | 12 | 13 | 14 | 16 | 18 | 16 | 12 | 8 | 8 | 7 |
| Level | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 9 | Good |
| Feb | 13 | Moderate |
| Mar | 12 | Moderate |
| Apr | 13 | Moderate |
| May | 14 | Moderate |
| Jun | 16 | Moderate |
| Jul | 18 | Moderate |
| Aug | 16 | Moderate |
| Sep | 12 | Good |
| Oct | 8 | Good |
| Nov | 8 | Good |
| Dec | 7 | Good |
Where is Jacksonville?
Jacksonville sits at 30.3°N, 81.7°W, 16 ft above sea level, in United States. The nearest listed city is Fruit Cove, 16 mi away.
Topography around Jacksonville
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Jacksonville.
Within 2 miles, the terrain around Jacksonville has only modest variations in elevation — a maximum elevation change of 72 ft around an average of 20 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 154 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 308 ft.
The land around Jacksonville is covered by artificial surfaces (51%) and trees (23%) within 2 miles, trees (49%) and artificial surfaces (23%) within 10 miles, and trees (62%) and water (26%) within 50 miles.
United States travel facts
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 100% of US
- price level, 2025
- GDP per capita
- $90,027
- 2025
- Happiness
- 6.8 / 10
- World Happiness, 2025
- Safe drinking water
- 98%
- of population, 2024
- Homicide rate
- 5.8
- per 100k, 2023
- Road deaths
- 12.7
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Jacksonville (30.3322°, -81.6556°, elevation 16 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).