Emerald Isle Water Temperature & Swim Forecast
Popular North Carolina beach near Emerald Isle.
Warm water with a light chop and a light breeze — great swimming conditions.
Model estimate · modelled, not a buoy measurement. How accurate is this?
Location
Emerald Isle on the map, with nearby beaches and live sea temperatures.
7-day forecast
Water, air, waves, wind and UV outlook for the week ahead.
No wetsuit
At 25.4°C the water is warm enough to swim and surf in just a swimsuit or boardshorts.
Recommendation tuned for Emerald Isle's current water temperature. Individual tolerance, wind chill, and session length all matter — when in doubt, size up.
Emerald Isle swimming conditions summary
- Water temperature
- 25.4°C
- Water feels
- Warm
- Swimmable today
- Yes — comfortable for most swimmers
- Swim conditions score
- 90/100 · Excellent
- Wetsuit needed
- No wetsuit
- Air temperature
- —
- Waves
- —
- Wind
- —
- UV index
- —
- Average sea temperature (September)
- 26.0 °C
- Warmest months to swim
- July, August, September
At 25.4°C the water is warm enough to swim and surf in just a swimsuit or boardshorts. Model estimate. Water, wave, wind and UV values are Open-Meteo marine/weather model estimates, refreshed hourly — not buoy measurements.
Frequently asked questions
Can I swim at Emerald Isle right now?
The sea at Emerald Isle is currently 25.4°C — excellent swimming conditions. Most swimmers will find the water comfortable when it's above 22°C; below 18°C feels fresh and a wetsuit is recommended.
What will the sea temperature be at Emerald Isle next week?
Based on long-term September averages and the latest marine model, expect the sea around Emerald Isle to sit close to 23.1°C over the next 7 days. Check the live 7-day chart above for the exact daily outlook.
When is the best month to swim at Emerald Isle?
July – August – September are typically the warmest months to swim at Emerald Isle, with sea temperatures at their seasonal peak.
Do I need a wetsuit at Emerald Isle?
With water currently at 25.4°C: above 22°C no wetsuit needed; 18–22°C a shorty is comfortable for long swims; 14–18°C a 3/2mm full suit; below 14°C a 4/3mm or thicker.
Can I swim at Emerald Isle today?
The sea is currently 25.4°C — excellent swimming conditions. Most swimmers will find it pleasant.
- • Located in North Carolina, United States (Atlantic Ocean).
- • Family friendly with calm, accessible water.
- • Live data refreshed hourly from Open-Meteo Marine.
Monthly sea temperature averages
Tap any month to see what to expect — based on regional climatology.
Best time to swim in Emerald Isle
The sea in Emerald Isle peaks in July, when the water averages around 27°C.
The main swimming season runs from May – October, when surface temperatures stay comfortable for extended sessions.
On average, 6 months a year sit above 20°C — the threshold most swimmers describe as pleasant without a wetsuit.
Shoulder months like April and November are noticeably cooler but often quieter, with fewer crowds and steadier weather.
Outside peak season the water drops toward 15°C, so a 3/2mm shorty or full wetsuit makes long swims much more comfortable.
The coldest month is typically January at around 11°C, when cold-water swimmers dominate the coast.
Emerald Isle sea temperature history
Long-term climatology for Emerald Isle shows an annual mean sea temperature of 19°C, ranging from 11°C in winter to 27°C at the summer peak.
The seasonal swing is roughly 16°C between the coldest and warmest month — a useful yardstick when comparing years or checking whether the current sea is running above or below average.
Recent decades have trended slightly warmer at Emerald Isle, in line with regional sea-surface temperature records for the wider basin.
Monthly averages below are drawn from multi-decadal climatology and are updated as new observations arrive.
Emerald Isle sea temperature: frequently asked questions
What is the warmest month to swim in Emerald Isle?
July is the warmest month in Emerald Isle, when the sea averages about 27°C. Late-season warmth often persists a few weeks after peak.
When is the sea coldest in Emerald Isle?
The coldest month in Emerald Isle is typically January, when the water averages around 11°C. Cold-water swimmers and surfers dominate this period.
When can you swim in Emerald Isle without a wetsuit?
The main swimming season in Emerald Isle runs from May – October — about 6 months a year when the sea sits above 20°C, the level most swimmers describe as pleasant without a wetsuit.
Do I need a wetsuit in Emerald Isle?
Outside peak summer the water in Emerald Isle drops toward 15°C, so a 3/2mm shorty or full wetsuit makes long swims much more comfortable. In peak months most swimmers go without.
What is the average sea temperature in Emerald Isle?
The long-term annual mean sea temperature in Emerald Isle is about 19°C, based on multi-decadal climatology of the surrounding waters.
How do I check the current sea temperature in Emerald Isle?
The live reading at the top of this page shows the current sea temperature in Emerald Isle, updated hourly from marine buoy and satellite data. The 7-day forecast covers water, air, waves, wind and UV for the week ahead.
Year-round sea temperature
Best swim months: May – Jun – Jul – Aug – Sep – Oct
| Month | Sea | Comfort |
|---|---|---|
| Jan | 11°C | Cold |
| Feb | 11°C | Cold |
| Mar | 13°C | Cold |
| Apr | 16°C | Bracing |
| May | 21°C | Pleasant |
| Jun | 25°C | Warm |
| Jul ⭐ | 27°C | Hot |
| Aug | 27°C | Hot |
| Sep | 26°C | Hot |
| Oct | 22°C | Warm |
| Nov | 18°C | Pleasant |
| Dec | 14°C | Bracing |
Nearby beaches
The closest coastline, with live water temperatures.