The highest temperature measured so far during the month was 14.5 degrees on March 14 in Röra Strand on Tjörn.
But on Sunday even higher temperatures are expected.
Hudiksvall is well located, according to the forecast.
- In Hälsingland we should get the highest temperatures, says Nitzan Cohen.
Record month
The sun has shone unusually many hours in March this year.
SMHI's sunshine meter shows that several places are moving towards a new sun record for the month.
- Mars has protruded on several different planes.
On the one hand, it has been unusually hot, especially in northern Sweden, and then it has been unusually dry in the southeastern parts of the country, says Cohen.