Photo: Excel23 · CC BY-SA 4.0Nights stay kind in Neptune Beach each January, milder than in 95% of U.S. towns
On a normal July day the thermometer tops out near 90°. Precipitation is plentiful here, more than falls on 87% of U.S. towns. December has warmed most since 1901–2000, part of a 1.5° rise. Comfortable outdoor weather lasts from October to May, with highs of 64–83°.
A year in Neptune Beach at a glance
Each month’s typical high and low, and what it brings.
What stands out about Neptune Beach’s climate
Compared with towns across the U.S., with Neptune Beach’s place in Florida beside it.
What a year in Neptune Beach feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
A freeze most winters
Frost and day counts come from NOAA’s station at Jacksonville Beach, FL, 1.7 miles from the town’s center, at about the same height.
The 2023 USDA map puts Neptune Beach’s center in zone 9b: the coldest night of a typical winter, averaged over 1991–2020, reaches about 28°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
About 51 inches of rain a year
September is the wettest month and November the driest. Rain falls on about 122 days a year. Snow is rare: about 0.0" in a normal year at Jacksonville Beach, FL, so most winters see none.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Neptune Beach
21% of the work is heating, so air conditioning is the bigger bill. No month averages under 55°.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Jacksonville Beach, FL.
Living with Neptune Beach’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
Zone 9b. Frost comes about 7 winters in 10, so tender plants can often stay out through winter.
Months with highs of 62–84° and lows of 40° or more: January, February, March, April, May, October, November and December. 2.7 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Neptune Beach from natural hazards, river flooding is the largest share (43%); heat waves, cold waves, winter storms and ice storms together are 13%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Neptune Beach and its neighbors
Jacksonville has the coldest January nights next door (44°, 3° colder) and Jacksonville the hottest July afternoons (92°, 2° warmer). Differences under a degree are within what the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Neptune Beach’s, farther away
TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.
| Town | Jan. low | July high | Precip. | Snow |
|---|---|---|---|---|
| Neptune Beach, FL | 47° | 90° | 51" | 0.0" |
| Freeport, TX | 47° | 90° | 50" | 0.0" |
| James Island, SC | 41° | 90° | 49" | 0.3" |
| Thomasville, GA | 39° | 91° | 53" | 0.0" |
| Morgan City, LA | 44° | 91° | 60" | 0.0" |
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value. Snow and frost-free days come from the nearest weather station, so neighbors often share them.
Warmer than it used to be
The last 30 years in Neptune Beach averaged 1.5° warmer than the 1900s. The biggest change is in December (+2.2°).
A bigger shift than in 58% of U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.
How Neptune Beach compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Neptune Beach’s place among Florida’s.
Neptune Beach weather by month
Highs, lows and precipitation from NOAA’s grid at Neptune Beach’s center; snow, wet days and snow on the ground from Jacksonville Beach, FL. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 64° | 47° | 3.3" | 0.0" | 10 | 0 | 49° – 61° |
| February | 67° | 49° | 2.9" | 0.0" | 9 | 0 | 50° – 67° |
| March | 72° | 54° | 3.2" | 0.0" | 8 | 0 | 57° – 70° |
| April | 77° | 60° | 2.8" | 0.0" | 7 | 0 | 64° – 73° |
| May | 83° | 67° | 3.0" | 0.0" | 8 | 0 | 71° – 79° |
| June | 88° | 73° | 6.8" | 0.0" | 13 | 0 | 77° – 85° |
| July | 90° | 75° | 5.4" | 0.0" | 13 | 0 | 80° – 85° |
| August | 89° | 75° | 6.8" | 0.0" | 14 | 0 | 80° – 85° |
| September | 86° | 73° | 7.1" | 0.0" | 13 | 0 | 77° – 84° |
| October | 80° | 66° | 4.7" | 0.0" | 10 | 0 | 70° – 78° |
| November | 72° | 56° | 2.4" | 0.0" | 8 | 0 | 59° – 71° |
| December | 67° | 50° | 2.9" | 0.0" | 9 | 0 | 48° – 67° |
| Year | 78° | 62° | 51.3" | 0.0" | 122 | 0 |
How much a month can swing
A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 48° to 67°. July is the most reliable, staying within 5°.
Where Neptune Beach’s numbers come from
Normals are 30-year averages, not a forecast. How TownRatings reads climate data →
- Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Neptune Beach’s center.
- Snow: Jacksonville Beach, FL (NOAA station in town).
- Frost, freezing nights, 90° and 100° days, heating and cooling: Jacksonville Beach, FL, 1.7 miles from the town’s center, at about the same height; the nearest station that passes our checks for distance, height and agreement with the grid.
- Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
- Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
- Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).
Common questions about Neptune Beach’s climate
What is the weather like in Neptune Beach?
A typical July afternoon reaches 90°, a January night drops to 47°, and snow is almost unheard of. Milder January nights than 95% of U.S. towns; hotter July afternoons than 76% of U.S. towns.
How cold does it get in Neptune Beach in winter?
January nights average 47°. About 4 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 49°.
How much snow does Neptune Beach get?
About 0.0 inches in a normal winter at Jacksonville Beach, FL, so most winters see none.
How hot does it get in Neptune Beach?
July, with a typical high of 90° and a low of 75°. About 36 days a year reach 90° (Jacksonville Beach, FL).
When is the first and last frost in Neptune Beach?
There is no reliable frost date: a 32° night comes in about 67% of winters at Jacksonville Beach, FL, so most years bring a freeze but some pass without one.
What growing zone is Neptune Beach in?
Zone 9b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 28°.
What is the best time of year to visit Neptune Beach?
By one simple rule (highs of 62–84° and lows of 40° or more), January, February, March, April, May, October, November and December. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Neptune Beach getting warmer?
Yes: 1991–2020 averaged 1.5° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 58% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Neptune Beach.
Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.