Seasonal forecasts look very different from traditional short-range forecasts. These are the two main differences:

  • seasonal forecasts cover the meteorological elements mean values for 3 months;
  • seasonal forecasts are in terms of probability.

NIMH issues a synthesis of the seasonal forecasts from several leading world centres.

Summer (June-July-August): With mean seasonal temperature near or above normal and seasonal rainfall near normal. Summer 2017 is very likely to be less warm and with more precipitation than summer 2016.

Autumn (September-October-November): With mean seasonal temperature and seasonal rainfall near normal. Autumn 2017 is likely to be similar to autumn 2016.

The seasonal forecast is updated in the interval 27-th-30-th every month.

More datailed seasonal forecast as well as more about its specificity read on the site of the Infocentre(in Bulgarian)

Other resources