Omiš weather in January
Temperature, sea and sunshine in January: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in January
Poor
Best time to visit: July – August
What is the weather like in Omiš in January?
In January, Omiš is cool: daytime highs average 11 °C, and nights cool down to about 8 °C. The sea averages 14.1 °C – swimming is only for the hardy. The sun is scarce, with only about 4 hours a day. Rain is frequent, with about 12 rainy days and 134 mm in total. All in all, January is not an ideal month for a holiday in Omiš.
January compared
How the weather changes from December to February. Tap a month to open it.
| DecemberDec | JanuaryJan | FebruaryFeb | |
|---|---|---|---|
| Score | 9 | 11 | 16 |
| Day | 13° | 11° | 11° |
| Night | 10° | 8° | 8° |
| Sea | 16° | 14° | 13° |
| Sun | 3 h | 4 h | 5 h |
| Rain days | 13 | 12 | 10 |
More details for January
- Daylight
- 9 h 17 min07:23 – 16:41
- UV index
- 1 · lowclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 21 km/haverage daily peakAll months
- Cloud cover
- 56 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Snow days
- 1 day1 cm or more of fresh snow
- Time zone
- UTC+1Europe/Zagreb
How the score comes together
- Temperatureweight 35 %0 %
- Seaweight 25 %0 %
- Sunshineweight 20 %12 %
- Few rainy daysweight 20 %44 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in January
- A jumper for the evenings
- Rain jacket or umbrella
Omiš in January: quick answers
Is Omiš hot in January?
No. In January, Omiš is cool: daytime highs average 11 °C and nights drop to about 8 °C.
Can you swim in Omiš in January?
Only if you don't mind cold water: in January the sea averages just 14.1 °C. Comfortable swimming is possible from June to October.
Does it rain much in Omiš in January?
Rain is frequent, with about 12 rainy days and 134 mm in total.
Omiš month by month
The whole year in OmišAll destinations: CroatiaWhere to go in JanuarySea temperature in January
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences