Temperature is projected to increase towards the end of the 21st century. The temperature increase is unevenly spread over the seasons, winter temperatures are projected to change with 3-9 °C and summer temperatures with 2-6 °C depending on scenario and area. In winter temperature increases the most in the northern parts of the Baltic Sea Region, in summer temperature is projected to increase the most in the southern parts of the region. In spring the largest temperature increase is found over sea surfaces due to earlier ice break up. Maximum and minimum temperatures are projected to change in a similar way, but with a larger increase of minimum temperature in winter and maximum temperature in summer (Figures 1-6, click to enlarge).

Abbreviations:

ANN Annual (January — December)
DJF Winter (December, January, February)
JJA Summer (June, July, August)
MAM Spring (March, April, May)
SON Autumn (September, October, November)


Figure 1. Change in average temperature, 2071-2100 compared to the 1961-1990 average [°C]. Winter (DJF, top left), spring (MAM, top right), summer (JJA, bottom left) and autumn (SON, bottom right). Using Rossby Centre regional Atmophere-Ocean model scenario A2.


Figure 2. Change in average temperature, 2071-2100 compared to the 1961-1990 average [°C]. Winter (DJF, top left), spring (MAM, top right), summer (JJA, bottom left) and autumn (SON, bottom right). Using Rossby Centre regional Atmophere-Ocean model scenario B2.


Figure 3. Change in average maximum temperature, 2071-2100 compared to the 1961-1990 average [°C]. Winter (DJF, top left), spring (MAM, top right), summer (JJA, bottom left) and autumn (SON, bottom right). Using Rossby Centre regional Atmophere-Ocean model scenario A2.


Figure 4. Change in average maximum temperature, 2071-2100 compared to the 1961-1990 average [°C]. Winter (DJF, top left), spring (MAM, top right), summer (JJA, bottom left) and autumn (SON, bottom right). Using Rossby Centre regional Atmophere-Ocean model scenario B2.


Figure 5. Change in average minimum temperature, 2071-2100 compared to the 1961-1990 average [°C]. Winter (DJF, top left), spring (MAM, top right), summer (JJA, bottom left) and autumn (SON, bottom right). Using Rossby Centre regional Atmophere-Ocean model scenario A2.


Figure 6. Change in average minimum temperature, 2071-2100 compared to the 1961-1990 average [°C]. Winter (DJF, top left), spring (MAM, top right), summer (JJA, bottom left) and autumn (SON, bottom right). Using Rossby Centre regional Atmophere-Ocean model scenario B2.

Look at the main changes of other climate parameters: