Sea temperature in Bermuda
Live water temperatures and swimming conditions across 2 beaches on the Bermuda coast.
Best time to swim in Bermuda
The sea in Bermuda peaks in July, when the water averages around 28°C.
The main swimming season runs from April – November, when surface temperatures stay comfortable for extended sessions.
On average, 8 months a year sit above 20°C — the threshold most swimmers describe as pleasant without a wetsuit.
Shoulder months like March and December are noticeably cooler but often quieter, with fewer crowds and steadier weather.
The coldest month is typically January at around 18°C, when cold-water swimmers dominate the coast.
Bermuda sea temperature history
Long-term climatology for Bermuda shows an annual mean sea temperature of 23°C, ranging from 18°C in winter to 28°C at the summer peak.
The seasonal swing is roughly 10°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 Bermuda, 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.
Values are area averages; individual beaches vary by exposure and depth.
Bermuda sea temperature: frequently asked questions
What is the warmest month to swim in Bermuda?
July is the warmest month in Bermuda, when the sea averages about 28°C. Late-season warmth often persists a few weeks after peak.
When is the sea coldest in Bermuda?
The coldest month in Bermuda is typically January, when the water averages around 18°C. Cold-water swimmers and surfers dominate this period.
When can you swim in Bermuda without a wetsuit?
The main swimming season in Bermuda runs from April – November — about 8 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 Bermuda?
Outside peak summer the water in Bermuda drops toward 19°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 Bermuda?
The long-term annual mean sea temperature in Bermuda is about 23°C, based on multi-decadal climatology of the surrounding waters.
How do I check the current sea temperature in Bermuda?
The live reading at the top of this page shows the current sea temperature in Bermuda, updated hourly from marine buoy and satellite data. The 7-day forecast covers water, air, waves, wind and UV for the week ahead.
Bermuda sea temperature by month
Average sea temperatures around Bermuda for every month of the year, based on long-term Open-Meteo marine climatology.
| Month | Average sea | Swimming comfort |
|---|---|---|
| January | 18.0°C | Swimmable, refreshing |
| February | 18.0°C | Swimmable, refreshing |
| March | 19.0°C | Swimmable, refreshing |
| April | 21.0°C | Pleasant swimming |
| May | 23.0°C | Pleasant swimming |
| June | 26.0°C | Warm swimming |
| July ⭐ | 28.0°C | Very warm, bath-like |
| August | 28.0°C | Very warm, bath-like |
| September | 27.0°C | Very warm, bath-like |
| October | 24.0°C | Warm swimming |
| November | 21.0°C | Pleasant swimming |
| December | 19.0°C | Swimmable, refreshing |
Monthly figures are modelled climatology averages, not live readings. How accurate is our data?
Warmest beaches in Bermuda right now
| Beach | Region | Sea | Swim score |
|---|---|---|---|
| Elbow Beach | Paget | 27.1°C | Excellent |
| Horseshoe Bay | Southampton | 26.5°C | Excellent |
Sea temperature in Bermuda — FAQ
How warm is the sea in Bermuda in September?
The sea off Bermuda averages about 27.0°C in September, based on long-term monthly averages for this coast.
When is the best time to swim in Bermuda?
Bermuda is warmest in July (around 28.0°C) and coldest in January (around 18.0°C). There are typically 6 months a year when the water sits above 22°C.
What is the average yearly sea temperature in Bermuda?
Across all twelve months, the sea in Bermuda averages about 22.7°C.
Do you need a wetsuit to swim in Bermuda?
In peak season (around July, ~28.0°C) most swimmers are comfortable without a wetsuit. Outside summer, when the water drops toward 18.0°C, a 3/2mm to 5/4mm wetsuit is recommended.