Rain are drizzle have put an appearance in parts of the west and southwest of the country today, but the temperatures remain a fairly pleasant 17-21C in most places.
Tonight will be mild and humid, with temperatures hovering around 15-16C, and fog is likely to develop in coastal counties in the south and east.
Tuesday and Wednesday will remain very warm and very humid, with highs of up to 25C, and that pattern will remain until Friday at least, though temperatures will fall slightly towards the end of the week.