Sea temperature in Montenegro
Live water temperatures and swimming conditions across 4 beaches on the Montenegro coast.
Best time to swim in Montenegro
The sea in Montenegro peaks in August, when the water averages around 26°C.
The main swimming season runs from June – October, when surface temperatures stay comfortable for extended sessions.
On average, 5 months a year sit above 20°C — the threshold most swimmers describe as pleasant without a wetsuit.
Shoulder months like May and November are noticeably cooler but often quieter, with fewer crowds and steadier weather.
Outside peak season the water drops toward 16°C, so a 3/2mm shorty or full wetsuit makes long swims much more comfortable.
The coldest month is typically February at around 13°C, when cold-water swimmers dominate the coast.
Montenegro sea temperature history
Long-term climatology for Montenegro shows an annual mean sea temperature of 19°C, ranging from 13°C in winter to 26°C at the summer peak.
The seasonal swing is roughly 13°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 Montenegro, 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.
Montenegro sea temperature: frequently asked questions
What is the warmest month to swim in Montenegro?
August is the warmest month in Montenegro, when the sea averages about 26°C. Late-season warmth often persists a few weeks after peak.
When is the sea coldest in Montenegro?
The coldest month in Montenegro is typically February, when the water averages around 13°C. Cold-water swimmers and surfers dominate this period.
When can you swim in Montenegro without a wetsuit?
The main swimming season in Montenegro runs from June – October — about 5 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 Montenegro?
Outside peak summer the water in Montenegro drops toward 16°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 Montenegro?
The long-term annual mean sea temperature in Montenegro is about 19°C, based on multi-decadal climatology of the surrounding waters.
How do I check the current sea temperature in Montenegro?
The live reading at the top of this page shows the current sea temperature in Montenegro, updated hourly from marine buoy and satellite data. The 7-day forecast covers water, air, waves, wind and UV for the week ahead.
Montenegro sea temperature by month
Average sea temperatures around Montenegro for every month of the year, based on long-term Open-Meteo marine climatology.
| Month | Average sea | Swimming comfort |
|---|---|---|
| January | 14.0°C | Bracing — wetsuit advised |
| February | 13.0°C | Too cold for most |
| March | 14.0°C | Bracing — wetsuit advised |
| April | 15.0°C | Bracing — wetsuit advised |
| May | 19.0°C | Swimmable, refreshing |
| June | 22.0°C | Pleasant swimming |
| July | 25.0°C | Warm swimming |
| August ⭐ | 26.0°C | Warm swimming |
| September | 24.0°C | Warm swimming |
| October | 21.0°C | Pleasant swimming |
| November | 18.0°C | Swimmable, refreshing |
| December | 16.0°C | Bracing — wetsuit advised |
Monthly figures are modelled climatology averages, not live readings. How accurate is our data?
Warmest beaches in Montenegro right now
| Beach | Region | Sea | Swim score |
|---|---|---|---|
| Velika Plaža | Montenegrin Coast | 24.6°C | Excellent |
| Sveti Stefan | Montenegrin Coast | 24.5°C | Excellent |
| Mogren | Montenegrin Coast | 23.7°C | Excellent |
| Jaz Beach | Montenegrin Coast | 23.6°C | Excellent |
Sea temperature in Montenegro — FAQ
How warm is the sea in Montenegro in September?
The sea off Montenegro averages about 24.0°C in September, based on long-term monthly averages for this coast.
When is the best time to swim in Montenegro?
Montenegro is warmest in August (around 26.0°C) and coldest in February (around 13.0°C). There are typically 4 months a year when the water sits above 22°C.
What is the average yearly sea temperature in Montenegro?
Across all twelve months, the sea in Montenegro averages about 18.9°C.
Do you need a wetsuit to swim in Montenegro?
In peak season (around August, ~26.0°C) most swimmers are comfortable without a wetsuit. Outside summer, when the water drops toward 13.0°C, a 3/2mm to 5/4mm wetsuit is recommended.