Constanta weather in September 2025

Expect 72°F daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Constanta in September. Check more long-term weather averages for Constanta in September before you book your next holiday to Romania in 2025/2026.

  • 72°F maximum daytime temperature in September in Constanta72
    72°F max day temperature
  • 6 hours of sunshine per day
  • 5 days with some rainfall in September in Constanta5
    5 days with some rainfall
  • 57°F minimum night-time temperature in September in Constanta57
    57°F min night temperature
  • 12 hours of daylight per day in September in Constanta12
    12 hours of daylight per day
  • No heat & humidity in September in Constanta0
    No heat & humidity
  • 1.2 inches monthly rainfall in September in Constanta1.2
    1.2 inches of monthly rainfall
  • UV (maximum) index 5 (Moderate) in September in Constanta5
    5 (Moderate) UV index
  • 70°F sea temperature in September in Constanta70
    70°F sea temperature

More about Constanta

Constanta by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Romania

TUI: up to 7% off holidays booked online

  • Book online with TUI & save up to 7% on holidays
  • FREE child places available for select holidays
  • Pay £0 deposits with direct debit & spread the cost
Go to TUI deal >>

View all TUI offers

TUITUI deal finder

The September weather guide for Romania (Constanta) 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.

Metric (°C)  |  Imperial (°F)

Back to top

How hot is it in Constanta in September?

Daytime temperatures usually reach 72°F in Constanta in September, falling to 57°F at night.

How sunny is it in Constanta in September?

There are normally 6 hours of bright sunshine each day in Constanta in September - that's 47% of daylight hours.

How warm is the sea around Constanta in September?

The average sea temperature around Constanta in September is 70°F.

Does it rain in Constanta in September?

There are usually 5 days with some rain in Constanta in September and the average monthly rainfall is 1.2 inches.

Constanta September sunrise & sunset times

Browse the sunrise and sunset times for Constanta in September 2025. Select a month to view Constanta sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:28 18:42
Monday, 15th September 2025 05:45 18:16
Tuesday, 30th September 2025 06:02 17:48

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^