- Save up to £250 on summer 2023 with TUI Lakes & Mountains
- Minimum spend varies by spend. T&Cs apply
- Travel between 1st May & 31st Oct 2023 (inclusive)
Portoroz weather in September 2023
- 24°C max day temperature
24
- 7 hours of sunshine per day
- 11 days with some rainfall
11
- 14°C min night temperature
14
- 13 hours of daylight per day
13
- No heat & humidity
0
- 118 mm of monthly rainfall
118
- 5 (Moderate) UV index
5
- 22°C sea temperature
22
Expires at 23:59 on Saturday 25th Feb 2023 · View all TUI Lakes & Mountains offers
TUI Lakes & Mountains deals
Recommended for Slovenia
The September weather guide for Slovenia (Portoroz) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Metric (°C / mm) | Imperial (°F / inches)
More about Slovenia
How hot is it in Portoroz in September?
Daytime temperatures usually reach 24°C in Portoroz in September, falling to 14°C at night.
How sunny is it in Portoroz in September?
There are normally 7 hours of bright sunshine each day in Portoroz in September - that's 54% of daylight hours.
How warm is the sea around Portoroz in September?
The average sea temperature around Portoroz in September is 22°C.
Does it rain in Portoroz in September?
There are usually 11 days with some rain in Portoroz in September and the average monthly rainfall is 118mm.
Portoroz September sunrise & sunset times
Browse the sunrise and sunset times for Portoroz in September 2023. Select a month to view Portoroz sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Friday, 1st September 2023 | 06:26 | 19:44 |
Friday, 15th September 2023 | 06:44 | 19:18 |
Saturday, 30th September 2023 | 07:02 | 18:49 |
Be inspired
Get your weekly fix of holiday inspiration from some of the world's best travel writers plus save on your next trip with the latest exclusive offers
We promise not to share your details
Related posts
Popular travel offers
Explore holidays in the sun for less
- Beach holidays
- Family holidays
- City breaks
- Summer holidays
- Winter sun holidays
- Holiday offers
- Top travel brands
- Airlines & flights
- Discount hotels
- Airport parking deals
- TUI
- Jet2holidays
- British Airways
- easyJet holidays
- Love Holidays