The extended range forecast, which includes the monthly and seasonal forecasts, can at times provide an insight into weather patterns in the months ahead. However, they should not be used for specific planning purposes as they have generally low skill compared with the 10-day forecast. This is because forecasts beyond one week become increasingly uncertain due to the chaotic nature of the atmosphere. Further information can be found here: Monthly and seasonal forecast explained.
Images: Shutterstock/gabriel12. Met Éireann HQ during Storm Emma 2018
Issued: 30/10/2026 12:00
Week 1 – Monday 02nd November to Sunday 08th November
With high pressure likely to remain in place, temperatures will remain around average for the time of year with
conditions largely dry too.
Week 2 – Monday 09th November to Sunday 15th November
High pressure looks to slip away, allowing some rain to move over southern counties but staying dry elsewhere.
Temperatures will remain slightly above average too, with conditions overall mostly settled.
Week 3 – Monday 16th November to Sunday 22nd November
Low pressure looks set to be more of an influence overall with wetter than normal conditions expected too.
Temperatures are likely to remain above average however.
Week 4 – Monday 23rd November to Sunday 29th November
The low pressure trend continues with more rainfall than normal expected and temperatures staying slightly above
average. Overall, conditions are likely to remain a little unsettled.
Seasonal Outlook for November December January (NDJ):
The signal from the C3S seasonal models for Ireland during the NDJ period is for above average temperatures. Rainfall amounts are also likely to trend above average with a strong signal for wet and unsettled conditions at times during NDJ.
Mean temperatures during NDJ are signalled to be above average overall. Temperatures during the period are likely to trend between 0.5 and 1.0°C above normal. However, colder than average periods, where winter hazards are possible, could still occur at times during NDJ, with the highest likelihood of these colder conditions later in the period.
The rainfall forecast for NDJ signals the potential for above average rainfall throughout the period, especially in the south. The highest likelihood for wetter than average conditions are signalled during November and December, with this trend slowly decreasing through meteorological winter.
The sea surface temperatures (SSTs) around Irish coasts are expected to continue above average during NDJ, trending 0.2 to 1.0 degrees higher than normal generally. SSTs are expected to be highest in comparison to average away from northern coasts.