The date the country empties
Around 20 August. Serbian, Bosnian and Kosovar schools go back in the first days of September, and those countries supply a large share of the summer visitors by car. The change over that week is abrupt rather than gradual — the same beach is two-thirds emptier on 1 September than on 15 August.
The numbers
| August | September | |
|---|---|---|
| Sea temperature | 25–26°C | 24–26°C |
| Air, coast | 30–33°C | 26–28°C |
| Double room, Budva | €110 – €140 | €70 – €95 |
| Sunbeds, popular beach | €25 – €40 | €15 – €25 |
| Kotor at midday | Impassable | Walkable |
| Restaurant table without booking | No | Usually yes |
Why the water is still warm
The sea lags the air by roughly two months because water holds heat. It spends all summer absorbing it and only starts giving it back in October. September water is a degree or two warmer than June water, while September air is five degrees cooler — which is the combination most people actually want.
The mountains are at their best
September is the most stable month in the north. The afternoon thunderstorms that build over Durmitor in July and August largely stop, the air is clear enough to see across to the Albanian Alps, and the trails are dry and empty. Rafting still runs — see the current Tara rafting trips — though the water is low and gentle by then; May is the month for the big water.
What starts closing
Nothing much until the last week. From about 25 September the beach concessions start pulling in sunbeds, and through October the seasonal restaurants on the smaller beaches shut one by one. Kotor, Budva, Tivat and Podgorica carry on year-round.
- First half of September — everything open, everything cheaper. This is the window.
- Second half — still excellent, some beach services winding down.
- Nevidio canyon closes when the water rises, usually late September.
- Mountain huts and katuns close through September as the herders come down.
Book anyway
Cheaper does not mean available. The good apartments in Kotor and Perast are booked through September by people who worked this out years ago, and the rafting camps run fewer boats once the season winds down. Two or three weeks ahead is enough; turning up expecting to find something is not.



