Weather in Rijeka in May 2025
Average weather
Average temperature in Rijeka in May
The expected average maximum temperature in May is +21°C with a maximum of +27°C and a minimum of +11°C.
The average maximum temperature goes up 13% by the end of the month, compared with the beginning of the month, from +20°C to +22°C.
Is Rijeka warm or cold in May?
Rijeka is typically mild in May.
Maximum temperatures go up compared to the previous month from +17°C to +22°C. The minimum temperature also goes up from +10°C to +14°C.
Pack a light jacket as it will be warm in the day and cool in the evenings.
Take a look at how May is compared to other months in Rijeka:
Water temperature in Rijeka in May
Water in Rijeka in May is Fresh. It varies from +13°C to +21°C, with an average of +17°C. This is almost similar to the air temperature, which averages +22°C.
In May, water temperatures are average relative to the rest of the year:
Can you swim in Rijeka in May?
Climate in Rijeka in May
| April | May | June | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +17°C | +22°C | +26°C | ||||
| Min. temperature | ||||||
| -1°C | +6°C | +8°C | ||||
| Max. temperature | ||||||
| +28°C | +34°C | +36°C | ||||
| Rainfall | ||||||
| 146 mm | 145 mm | 130 mm | ||||
| Wind | ||||||
| 2 m/s | 1 m/s | 1 m/s | ||||
| Avg. water temperature | ||||||
| +13°C | +17°C | +22°C | ||||
| Humidity | ||||||
| 65% | 66% | 64% | ||||
| Air pressure | ||||||
| 1013 HPa | 1013 HPa | 1014 HPa | ||||
| Sunny days | ||||||
| 8 | 8 | 9 | ||||
| Cloudy days | ||||||
| 5 | 5 | 4 | ||||
| Rainy days | ||||||
| 16 | 15 | 13 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
May weather is still as good as in April. It’s getting warmer as May arrives. The average maximum temperature goes up from +17°C to +22°C during the day. As May arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 146 mm to 145 mm. Humidity rises from 65% to 66%. Winds are calmer in comparison to April, going down from 2 m/s to 1 m/s on average. The amount of sunny days stay about the same, averaging 8 sunny days during the month.
June brings much the same weather, it remains good.
Wind
The average wind speed is 4 m/s getting up to 12 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Rijeka is gradually increasing during May, going from 3 m/s to 4 m/s over the course of the month.
Rain
How was the weather last May in Rijeka?
Climate Change over Years
The climate in Rijeka in May has not changed much over the last 43 years.
The average temperature was the lowest in 1980 (+16°C) and the highest in 2011 (+20°C). The driest year was 2003 with only 1149 mm of rainfall, and the wettest year was 2019 with 4603 mm.
FAQ
Is May a good time to visit Rijeka?
Can you sunbathe in Rijeka in May?
Can you swim in Rijeka in May?
Is Rijeka rainy in May?
Is it sunny in Rijeka in May?
Other cities in Croatia
Monthly weather in Rijeka
Source of the data
For this page, we’ve looked at the typical weather in Rijeka, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.