This Week’s Weather
Monday, 21 October, 2019
Forecasts for Ireland courtesy of Irish Weather Online
TRENDS for the week of 21 to 27 October, 2019
— Temperatures will average near normal values, starting from about 2 or 3 below average at first, and ending up that much above by Thursday, with further variations to come.
— Rainfalls may amount to near normal after Friday’s expected rainfalls. There could also be more by Sunday.
— Sunshine will probably manage to outperform normal this week and could end up 50% above average in some places.
TODAY will have some patchy frost and fog or mist especially in low-lying areas near lakes and rivers (which are now much warmer than the cold air), drive with caution in these areas. Most of coastal and urban sections of the country will be too mild for frost and eventually all areas will recover to about 10 degrees under a bright sky with some patchy higher cloud layers. The afternoon highs will reach 12 to 14 C. It won’t be windy today and some places will remain almost calm.
TONIGHT will bring a return of some frost and fog patches mainly in the inland south and southeast. Cloud spreading into the north and west will keep temperatures higher there. Lows -1 to +4 C in south and east, to about 7 C in parts of the north and west.
TUESDAY will be mostly cloudy but there could be some brighter intervals at times. Rain will be slowly approaching the west coast and some patchy drizzle will probably reach land but it will be nightfall before measurable rain begins in the west and north. Moderate southwest winds of 40 to 60 km/hr will set in.
WEDNESDAY will have some intervals of light rain, 5 to 10 mm on average, in a milder southwest wind of 50 to 70 km/hr. Lows will be about 7 to 10 C and highs 11 to 15 C.
THURSDAY will continue mostly cloudy and mild, with a little more rain although spotty in most cases, and south winds will not be overly strong, with highs possibly as high as 16 C.
FRIDAY will bring outbreaks of rain and some could be heavy across the south. The timing and exact track of this system remain imprecise with estimates between Friday mid-day and Saturday early morning for the peak of the impacts. About 15-25 mm of rain is possible. Winds may become rather strong from the east ahead of the low, and then swing around to strong westerly winds once it moves through from southwest to northeast. The stronger east winds might be mostly from Dublin to Clare north into Ulster. Highs on Friday will be around 13 C.
SATURDAY and SUNDAY are likely to turn somewhat colder again at least for most of Saturday and the first part of Sunday; milder air could make a return at some point with a second rainfall event rather speculatively timed for Sunday into Monday. These details are going to remain unresolved for a day or two yet. But it looks as though temperatures on the weekend will be around 10-13 C, with the stronger winds of the Friday system easing by Saturday morning, then perhaps resuming from the southeast ahead of the second system timed at present for Sunday. The weather pattern beyond the weekend looks unsettled with frequent fast-moving frontal systems promising a seasonal amount of rain and occasionally strong winds.