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Krk Weather in September

September in Krk sees daytime temperatures around 23°C (73°F) and lows of 16°C (61°F) at night. Being part of the rainy season, heavy rainfall is a regular part of the day, so pack accordingly.

Rainfall in Krk in September

Krk is in the rainy season in September, with rain on around 12 days and an average of 170 mm (6.7 in). With rain on many days and solid totals, showers are frequent and often moderately heavy. Waterproof gear is a sensible idea.

Temperature in Krk in September

September in Krk brings high temperatures, with highs of 23°C (73°F) and nights around 16°C (61°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. At 16°C (61°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.

Sunshine in Krk in September

Expect sunny days throughout the month, with an estimated 214 hours of sunshine. Despite being the rainy season, it could still be a nice time to visit. Rain often arrives later in the day, keeping most of the days sunny.

If you prefer dry days with pleasant temperatures, June, July and August typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

Krk Temperature in September

Min Temperature
16°C (61°F)
Max Temperature
23°C (73°F)
Chance of Rain
40%
Precipitation
170 mm (6.7 in)
Rainy days
12 days
Sunshine
214 hours *
Percentage Sunshine
*
* Data from: Senj, Croatia (26 KM, 16 Miles).

Krk Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Krk - and find the best time to visit.

Daily Historical Temperatures

48-year average (1976-2025)

Based on our historical records, temperatures in Krk typically drop from around 25°C (77°F) at the start of September to approximately 22°C (72°F) by the end. Nights are pleasant, with lows typically ranging from 13°C (55°F) to 16°C (61°F).

Average temperatures in September

Daily Historical Precipitation

48-year average (1976-2025)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in September

Historical weather records for Krk in September

Browse day-by-day weather records for Krk spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Krk historical weather extremes in September

Based on 33 years of weather observations in Krk between 1993 and 2026, these are the recorded extremes.

  • Krk recorded its highest September temperature of 34°C (93°F) on September 7, 2026.
  • The lowest daytime temperature in September was 14°C (57°F), recorded on September 26, 2020.
  • The coldest night in September in Krk was on September 17, 2008, with a minimum of 7°C (45°F).

Best Places in Croatia in September

Find out more about the weather in Croatia and which places have the best travel conditions in this month. See all of Croatia in September →

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).

What to Wear in Krk in September

For Krk in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Also bring a poncho, it will rain a lot! Waterproof everything you can. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Krk in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Swimming
    7/10
  • Camping
    6/10

Krk 3-Day Forecast

More climate data for Krk

Popular in September

Where to go in September - average daytime high across popular destinations.

Bucket list

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