Mljet Island Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in Mljet Island, Croatia in September.

Are you planning a trip a to Mljet Island, Croatia in September and wondering what kind of weather to expect? This page has all the details you need.

What to Expect in Mljet Island in September

Mljet Island, Croatia is a region in Croatia. September in Mljet Island generally has warm temperatures, with high precipitation.

Temperatures

You can expect warm maximum daytime temperatures of around 26°C (79°F) and nighttime temperatures around 19°C (66°F) in Saplunara.

To learn more about the conditions in specific areas of Mljet Island, Croatia, check out the map below.

Precipitation

In September, precipitation varies across different areas. From high rainfall in Ropa with an average of 104 mm (4.1 in) to high rainfall in Saplunara with 121 mm (4.8 in).

Average sunshine

Most destinations offer generous amounts of sunshine this September. For example, Saplunara gets approximately 310 hours of sunlight, perfect for anyone wanting bright, sunny days.

Explore Mljet Island by month

Pick a month to see the average temperature, rainfall and sunshine in Mljet Island — and find the best time to visit. (based on Saplunara)

Best Places to Visit in Mljet Island in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Mljet Island.

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Mljet Island

What is the weather like in September for some of the most popular destinations in Mljet Island, Croatia?

Temperature range in Mljet Island (September)

Precipitation variation in Mljet Island (September)

Saplunara

In September Saplunara generally has high temperatures with maximum daytime temperatures around 26°C (79°F), minimum nighttime temperatures around 19°C (66°F) and high monthly rainfall. So on average the conditions are pleasant that month.

August
September
October
Max temperature
30°C (86°F)
26°C (79°F)
21°C (70°F)
Min temperature
22°C (72°F)
19°C (66°F)
15°C (59°F)
Monthly sun hours
326 hours
310 hours
191 hours
Monthly rainfall
47 mm (1.9 in)
121 mm (4.8 in)
167 mm (6.6 in)
Monthly rainy days
7 days
9 days
10 days
Weather conditions

Sobra

In September Sobra generally has high temperatures with maximum daytime temperatures around 26°C (79°F), minimum nighttime temperatures around 19°C (66°F) and high monthly rainfall. So on average the conditions are pleasant that month.

August
September
October
Max temperature
30°C (86°F)
26°C (79°F)
22°C (72°F)
Min temperature
22°C (72°F)
19°C (66°F)
15°C (59°F)
Monthly sun hours
326 hours
310 hours
191 hours
Monthly rainfall
45 mm (1.8 in)
112 mm (4.4 in)
154 mm (6.1 in)
Monthly rainy days
8 days
9 days
11 days
Weather conditions

Okuklje

In September Okuklje generally has high temperatures with maximum daytime temperatures around 26°C (79°F), minimum nighttime temperatures around 18°C (64°F) and high monthly rainfall. So on average the conditions are pleasant that month.

August
September
October
Max temperature
30°C (86°F)
26°C (79°F)
21°C (70°F)
Min temperature
22°C (72°F)
18°C (64°F)
15°C (59°F)
Monthly sun hours
326 hours
310 hours
191 hours
Monthly rainfall
46 mm (1.8 in)
117 mm (4.6 in)
161 mm (6.3 in)
Monthly rainy days
8 days
9 days
10 days
Weather conditions

Polače

In September Polače generally has high temperatures with maximum daytime temperatures around 25°C (77°F), minimum nighttime temperatures around 19°C (66°F) and high monthly rainfall. So on average the conditions are pleasant that month.

August
September
October
Max temperature
29°C (84°F)
25°C (77°F)
21°C (70°F)
Min temperature
23°C (73°F)
19°C (66°F)
15°C (59°F)
Monthly sun hours
326 hours
310 hours
191 hours
Monthly rainfall
40 mm (1.6 in)
107 mm (4.2 in)
146 mm (5.7 in)
Monthly rainy days
8 days
9 days
11 days
Weather conditions

Pomena

In September Pomena generally has high temperatures with maximum daytime temperatures around 25°C (77°F), minimum nighttime temperatures around 19°C (66°F) and high monthly rainfall. So on average the conditions are pleasant that month.

August
September
October
Max temperature
29°C (84°F)
25°C (77°F)
21°C (70°F)
Min temperature
23°C (73°F)
19°C (66°F)
15°C (59°F)
Monthly sun hours
326 hours
310 hours
191 hours
Monthly rainfall
40 mm (1.6 in)
107 mm (4.2 in)
146 mm (5.7 in)
Monthly rainy days
8 days
9 days
11 days
Weather conditions

Is your destination not in the list? Have a look at all destinations in Mljet Island, in Croatia.

Popular cities in September

Day & night temperatures, rainfall and average weather in Mljet Island in September.

City Weather Day temp Night temp Rainfall
Saplunara 26°C (79°F) 19°C (66°F) 121 mm (4.8 in)
Sobra 26°C (79°F) 19°C (66°F) 112 mm (4.4 in)
Okuklje 26°C (79°F) 18°C (64°F) 117 mm (4.6 in)
Polače 25°C (77°F) 19°C (66°F) 107 mm (4.2 in)
Pomena 25°C (77°F) 19°C (66°F) 107 mm (4.2 in)
Kozarica 26°C (79°F) 19°C (66°F) 108 mm (4.3 in)

Mljet Island weather in September: frequently asked questions

What is the weather like in Mljet Island, Croatia in September?

Mljet Island, Croatia typically experiences pleasant weather in September, part of the season. Daytime highs in Saplunara average around 26°C (79°F), and temperatures drop to about 19°C (66°F) at night.

What is the average temperature in Mljet Island, Croatia in September?

Average temperatures in Mljet Island, Croatia during September range from a nighttime low near 19°C (66°F) to a daytime high around 26°C (79°F) in Saplunara.

Does Mljet Island, Croatia get a lot of rain in September?

Saplunara typically receives notable rainfall in September, about 121 mm (4.8 in) on average across Mljet Island, Croatia.

Is September a Good Time to Visit Mljet Island, Croatia?

In our opinion, September is a good time to visit Mljet Island, Croatia with overall pleasant weather in Saplunara. However, the weather conditions may vary depending on your destination.

Generally speaking, the best visiting conditions can be found in May and June offering mostly perfect weather in Saplunara. In contrast, January, February, November and December tend to have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in Mljet Island.

Weather and climate has detailed information for every country in the world. Are you going to Croatia? Get detailed historical weather averages for many cities in Croatia.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.