Swimming in Split in september 2025: Average sea temperature in september and tide times in september 2025

Average sea temperature in Split in september 2025.

In september, according to seasonal norms, the sea temperature in Split is:

Minimum: 70°F

Average: 75°F

Maximum: 81°F

Other useful seasonal weather averages in september:

  • Outside temperature: 68°F to 77°F
  • Most common weather: "Clear/Sunny"
  • The wind blows at 12.4mph
  • It rains a total of 3.7in, over 4 day(s).

Should we swim in Split in september?

Yes! The water temperature in Split in september is pleasant

Swimming in september is pleasant in Split and the surrounding area. The sea temperature is 75°F on average (min/max: 70°F/81°F), allowing you to swim for a long time and enjoy water sports.

Note also that in september, the climate is good with an average outside temperature of 72°F, 3.7in of precipitation (over 4 days) and 66.86 % humidity.

Water and normal seasonal temperatures in Split in september

September
Average sea temperature 75°F
Minimum sea temperature 70°F
Maximum sea temperature 81°F
Average outside temperature 74°F
Maximum outside temperature 77°F
Minimum outside temperature 68°F
Wind speed 9.9mph
Wind temperature 68°F
Precipitation 3.7in
Number of days of rain 4 jour(s)
(15%)
Humidity 67%
Visibility in kilometers 9.75km
Cloud cover 18%
Our opinion pleasant swimming

Chart of the tides in september 2025

Tide times in september 2025 in Split

Swim elsewhere in Croatia in september

City Average T° Max. T° Our opinion
Dubrovnik in september76°F81°Fpleasant swimming
Pula in september75°F81°Fpleasant swimming
Rovinj in september75°F81°Fpleasant swimming
Zadar in september76°F81°Fpleasant swimming
Rijeka in september74°F80°Fpleasant swimming
Senj in september75°F81°Fpleasant swimming
Umag in september75°F81°Fpleasant swimming
Crikvenica in september74°F80°Fpleasant swimming
Opatija in september74°F80°Fpleasant swimming
Cavtat in september76°F82°Fpleasant swimming

Swim in Croatia in september: sea temperature by city

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