Rab Temperature by Month
Rab, Rab Island, Croatia has an average annual maximum temperature of 18°C (64°F), ranging from 9°C (48°F) in January to 27°C (81°F) in August. Below you'll find a full monthly breakdown and a comparison with cities worldwide.
Rab Monthly Temperatures
The weather in Rab experiences significant differences between warm and cold seasons, with big shifts in temperature. At night, minimum temperatures range from 21°C (70°F) in August to 4°C (39°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Rab by month:
From around 4 AM to 6 AM temperatures are at their lowest; by 3 PM they've climbed to their daily peak. August, the warmest month, averages 287 hours of sunshine.
The chart below shows the average temperature throughout the year:
Daily Historical Temperatures
49-year average (1976-2025)
Average high and low temperatures for each day of the month based on long-term records.
Average temperatures in June
Historical Rab Temperatures: 1976-2026
Browse day-by-day temperature records for Rab spanning 51 years. Select any month and year to see actual high and low temperatures recorded on each day.
Temperature: Rab vs Croatia
The map below shows the annual temperature across Croatia. You can also select individual months if you want to compare a specific time of year.
very warm
warm
pleasant
moderate
cold
very cold
Rab vs World: Temperature Compared
Rab's average annual maximum temperature is 18°C (64°F). To put that in context, here's how it compares to a few well-known destinations:
Rome, Italy averages 20°C (68°F) annually, with reliably warm summers and comfortable winters.
Reykjavík, Iceland averages 9°C (48°F) a year — mild summers by Icelandic standards, but cold winters and frequent wind.
San Francisco, USA averages 19°C (66°F) annually, but with little seasonal variation — summers are often cool and foggy, winters mild.
Brisbane, Australia averages 26°C (79°F) a year, with warm winters and hot, humid summers.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
For cities and regions with significant elevation, altitude is one of the biggest factors shaping local temperatures. As a rule of thumb, temperatures fall by around 6°C for every 1,000 metres gained — so a city at 2,000 metres will typically be around 12°C cooler than a city at sea level in the same region. Higher ground also tends to see more dramatic day-to-night temperature swings, since thinner air loses heat faster after sunset.
For more on Rab's weather — including monthly rainfall, sunshine hours, and humidity — visit our Rab climate page.
