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Irish Mirror

National

Clare McCarthy

Met Eireann forecast four weeks of unusual weather for this time of year in Ireland

Met Eireann Ireland

Ireland has enjoyed warm temperatures all summer but as we head into autumn we usually expect to feel a nip in the air.

When schools return, the weather typically gets wetter and we begin to see a drop in temperatures but this year could be quite different.

Met Eireann has forecast four weeks of unusually dry and warmer weather for this time of year as a band of high pressure is set to dominate during the last two weeks of this month.

The national forecaster's long-range weather forecast has predicted that we will see less rainfall than usual for late September in Ireland.

Temperatures are also set to creep up to above average as we come into October, which will help us ease into the autumn months before we need to pull out the woolly jumpers.

For the week beginning 16 September, a forecaster said we can expect to see "high pressure will be the dominant feature of our weather during this period."

Conditions will be generally settled and dry next week due to a northerly airflow over the country. Temperatures will be normal for that time of year and there will be very little rainfall forecast as it is expected to be below average.

The last week of the month, September 23 to 29, high pressure will weaken slightly but will remain the predominant driver of our weather, as an easterly airflow becomes established over the country.

Temperatures will rise to above average and we can also expect "below average rainfall" for most areas, though we may see more frequent showers than the week before.

The next two week coming into October temperatures are set to remain slightly above average with mostly settled conditions though there could be some more rain showers as high pressure weakens.

Here is a more detailed look at the weather for the month ahead:

Week 1: Friday, 16 September to Thursday 22 September

High pressure will be the dominant feature of our weather during this period. As a result, conditions will be generally settled. The high pressure will establish a northerly airflow over the country so temperatures will fall back to around normal nationwide. Occasional light showers may feed in on this northerly airflow but otherwise our conditions are likely to be dry. Rainfall accumulations are expected to be below average across the country.

Week 2: Friday, 23 September to Thursday, 29 September

Currently it looks like high pressure will weaken slightly during week 2. However, it will remain the predominant driver of our weather, with an easterly airflow becoming established over the country. The relatively dry airmass associated with this airflow will result in below average rainfall for most areas, though we may see some more frequent showers than in the previous week. Temperatures will also rise slightly above average during the period.

Week 3: Friday, 30 September to Thursday, 6 October

There will be very little change for week 3 in general. However, a further weakening of high pressure will allow some rain and showers to encroach into southern and eastern areas. As a result, it will be wetter than average there, while remaining drier than normal in the north and west. Temperatures will remain slightly above the norm.

Week 4: Friday, 7 October to Thursday, 13 October

There is a good deal of uncertainty for week 4 but it currently looks as though high pressure will remain nearby, maintaining generally settled conditions across the country. There may be a few showers or spells of rain but many areas will experience less rainfall than average. Temperatures will continue slightly above average across the country.

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