A month-by-month climate guide to Herceg Novi — the best time to visit is July, August, June, when highs reach around 30°C.
Now
—
Best time
July, August, June
Warmest
July · 30°C
Swimming season
Jun, Jul, Aug, Sep
Driest
July · 4 rainy days
Herceg Novi sits at the sunny mouth of the Boka bay, where the sheltered coast meets the open Adriatic. Summers are warm and bright, with July and August highs around 30°C and the sea reaching a peak of 26°C in August. Long days bring close to 14 hours of sunshine at the height of summer.
The town has a reputation for mild, green winters, with January highs near 11°C and abundant subtropical greenery, though the inner bay location means November and December are wet, with around 14–16 rainy days.
| Month | High | Low | Sea | Sun/day | Rainy days |
|---|---|---|---|---|---|
| January | 11° | 5° | 14° | 6.5 h | 14 |
| February | 12° | 6° | 13° | 7.9 h | 11 |
| March | 13° | 7° | 14° | 9.2 h | 12 |
| April | 16° | 10° | 16° | 10.1 h | 14 |
| May | 22° | 16° | 19° | 11.8 h | 15 |
| June★ | 27° | 21° | 23° | 13.3 h | 9 |
| July★ | 30° | 24° | 25° | 13.8 h | 4 |
| August★ | 30° | 23° | 26° | 12.9 h | 9 |
| September | 25° | 19° | 24° | 10.5 h | 11 |
| October | 21° | 15° | 21° | 9.2 h | 10 |
| November | 16° | 11° | 18° | 5.9 h | 16 |
| December | 13° | 7° | 15° | 5.7 h | 14 |
Averages based on 2021–2024 data (open-meteo). Sea temperatures are typical Adriatic values along the Montenegrin coast.
For swimming and the beach, come between June and September, when the sea holds 23–26°C under long, sunny days. July and August are warmest; June and September pair a warm sea with a gentler pace. Spring and autumn suit walking the seafront promenade and terraced old town, with warm afternoons and mild evenings.
Bring swimwear, sun protection and light clothing for summer, plus comfortable shoes for the town's many steps and slopes. A light layer covers cooler evenings, while winter visits need a warm jacket and umbrella for the rainy stretch.
August, at around 26°C, is warmest, with July and September at 25°C and 24°C. The swimming season runs comfortably from June to September.
Yes. It sits at the open mouth of the bay and enjoys up to 14 hours of sun a day in summer, with a mild, green climate year-round.
Summers are dry, but the bay setting brings wet winters, with about 16 rainy days in November. Autumn and winter see the heaviest rainfall.
July and August highs average around 30°C, kept comfortable by sea breezes off the Adriatic.
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