Magical Split
The best travel time to Split in Croatia is from May til October and the best months are May, June and September.
Novigrad Istria Weather in September
In Novigrad Istria, September brings high daytime temperatures around 24°C (75°F), with nights cooling to 19°C (66°F). Expect quite a bit of rainfall this month.
Rainfall in Novigrad Istria in September
On average, there are about 11 days with rain during this month, averaging 132 mm (5.2 in). Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in Novigrad Istria in September
September in Novigrad Istria sees highs of 24°C (75°F) and lows of 19°C (66°F) overnight. This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. Nights cool down to 19°C (66°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.
Sunshine in Novigrad Istria in September
There are approximately 223 hours of sunshine this month, resulting in mostly clear days.For Novigrad Istria itself, May, June, July and August generally stand out with 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.
Novigrad Istria Temperature in September
Min Temperature
19°C (66°F)
Max Temperature
24°C (75°F)
Chance of Rain
36%
Precipitation
132 mm (5.2 in)
Rainy days
11 days
Humidity
57% *
Sunshine
223 hours *
Percentage Sunshine
*
* Data from: Portorož, Slovenia (22 KM, 13 Miles).
Novigrad Istria Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Novigrad Istria - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Novigrad Istria typically drop from around 26°C (79°F) at the start of September to approximately 22°C (72°F) by the end. Nights are pleasant, with lows typically ranging from 12°C (54°F) to 16°C (61°F).
Average temperatures in September
Daily Historical Precipitation
50-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 Novigrad Istria in September
Browse day-by-day weather records for Novigrad Istria spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Novigrad Istria historical weather extremes in September
Based on weather observations in Novigrad Istria between 1976 and 2025, these are the recorded extremes during September.
- Novigrad Istria recorded its highest September temperature of 34°C (93°F) on September 23, 1985.
- Novigrad Istria experienced its chilliest September day on September 18, 1977, reaching only 11°C (52°F).
- The lowest overnight temperature recorded in September was 5°C (41°F) (September 19, 1977).
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 Novigrad Istria in September
For Novigrad Istria 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. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.
What To Do in Novigrad Istria in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming9/10 -
Cycling9/10 -
Walking9/10 -
Camping6/10 -
Outdoor sports9/10
Novigrad Istria 3-Day Forecast
More climate data for Novigrad Istria
Temperature Rainfall Sunshine Humidity
See the full Novigrad Istria climate overview or explore weather in Croatia.
Popular in September
Where to go in September - average daytime high across popular destinations.
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