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Neptune Beach, FL Live Weather Forecast
Neptune Beach, Florida sits at 30.3126, -81.3931. Its warmest month is July, when the day usually reaches 89F, and its coldest is January, when the night usually falls to 47F. August is the wettest, with rain on about 14 days. The hottest day in the station record is 103F on July 16, 1986, and the coldest night 14F on January 21, 1985. This page carries live conditions, an hour by hour timeline, a ten day outlook, radar, monthly averages and searchable daily history back to 1940.
About Neptune Beach weather
Neptune Beach sits at 30.3126, -81.3931 and covers about 2.337 square miles. The forecast above is live: current conditions lead with the HRRR model, corrected against the nearest reporting station and against radar overhead, because a model can lag a storm and the radar cannot.
The tabs at the top of this page carry the hour by hour timeline, the ten day outlook and live radar. Where the models disagree about a day, the rock says so on the day rather than quietly picking a winner.
The rock grades itself against what actually happened and publishes the result whether it flatters it or not. Those standings live in the Receipts.
- Current conditions and forecast: our own forecast, on a NOAA base: NOAA forecast grids (the National Weather Service digital forecast, the National Blend of Models, HRRR and GFS) decoded on our own server, corrected against the nearest reporting station and our own radar, and graded every day against what actually happened. Open-Meteo is consulted only as a fallback when our server is silent.
- Warnings and alerts: the National Weather Service, passed through unchanged.
- Radar: NOAA MRMS merged reflectivity, rendered into tiles by myweatherrock.
- Monthly averages and records: computed by myweatherrock from NOAA GHCN-Daily station records at the nearest qualifying station, named on this page with its distance. Measurements, not estimates.
- Daily history search: the town's own NOAA GHCN-Daily station file, held on our server, measurements by day. Months the station missed fall back to the Open-Meteo historical archive (reanalysis), and the page says so when it does.
What the weather is usually like in Neptune Beach
Neptune Beach is warmest in July, when the day usually reaches 89F, and coldest in January, when the night usually falls to 47F. August is the wettest month, with rain on about 14 days of it.
The same year as numbers
| Month | Usual high | Usual low | Rain days |
|---|---|---|---|
| January | 64F | 47F | 10 |
| February | 66F | 50F | 9 |
| March | 71F | 55F | 8 |
| April | 77F | 61F | 7 |
| May | 82F | 68F | 8 |
| June | 87F | 73F | 13 |
| July | 89F | 75F | 13 |
| August | 88F | 75F | 14 |
| September | 85F | 74F | 13 |
| October | 80F | 67F | 9 |
| November | 72F | 58F | 8 |
| December | 66F | 51F | 9 |
Thirty-year normals, 1991 to 2020, computed from the daily record, measured at the Jacksonville Beach station 1.7 miles away. A rain day means at least a hundredth of an inch fell, the same measurable-precipitation mark the Weather Service uses. Source: computed from the station record, NOAA GHCN daily.
Neptune Beach weather history, back to 1940
Pick any month back to 1940 and see what the archive holds for Neptune Beach: the reanalysis record of what happened, day by day.
Reading this month last year to start you off.
Neptune Beach weather records
In 110,271 days of observations Neptune Beach has been as hot as 103F and as cold as 14F. Not averages: the actual days.
NOAA GHCN daily station records, observed 1944 to 2026: temperature at the Jacksonville Beach station, 1.7 miles away. Station measurements, not estimates. Record dates reflect the station's own observation schedule, and the official state record may live at a different station.
Common questions about Neptune Beach weather
What is the weather usually like in Neptune Beach, FL?
Neptune Beach is warmest in July, when the day usually reaches 89F, and coldest in January, when the night usually falls to 47F. Rain falls on roughly 121 days a year, most often in August. Averages are thirty-year normals, 1991 to 2020, computed from the nearest NOAA station's own daily record.
How much does it rain in Neptune Beach, FL?
About 121 days a year see at least a hundredth of an inch, which is the Weather Service's measurable-precipitation mark. August is the wettest month with rain on about 14 of its days, and April the driest with about 7.
What is the hottest it has ever been in Neptune Beach, FL?
The hottest day measured for Neptune Beach reached 103F on July 16, 1986, and the coldest night 14F on January 21, 1985. Both are real NOAA station measurements from the GHCN daily archive, observed 1944 to 2026, at the Jacksonville Beach station. Not estimates, though the official state record may live at a different station.
Can I look up past weather for Neptune Beach, FL?
Yes, and for free. The History tab on this page takes any month back to 1940 and shows every day of it: the high, the low, what fell, and that month's hottest and coldest day. No account and no payment.
Is the Neptune Beach forecast on this page free, and does it track me?
It is free, carries no advertising, and needs no account. Nothing about a visitor leaves the device except the coordinates needed to fetch a forecast, and those are not stored against anyone.