Friday starts wet, with heavy rain likely early in the morning before conditions improve through the day.
It becomes drier and brighter by late morning, with sunny spells into the afternoon and early evening.
Rain is most likely between 5am and 8am, with the chance of precipitation at 95% or above at 5am and 6am, then 80% at 7am and 60% at 8am. The risk falls to 40% by 9am, 30% by 10am, 20% by 11am and 10% by midday.
Temperatures start at around 17C early in the morning, dipping slightly to 16C at 8am before recovering to 17C by 9am and 10am. It rises to 18C at 11am, 19C at midday, and around 20C to 21C during the afternoon.
The afternoon looks largely dry and bright, with the chance of rain below 5% from 1pm to 5pm. Temperatures reach about 20C at 1pm and 2pm, 21C at 3pm, then around 20C at 4pm and 5pm.
Winds will mainly come from the west or west-south-west, around 6mph to 10mph. Gusts build through the morning, reaching around 32mph to 33mph from late morning into the early afternoon, before easing slightly later in the day.
The evening stays mostly dry, with sunny spells at first and clearer conditions later. Temperatures fall from 20C at 5pm and 6pm to 19C at 7pm, 17C at 8pm, 16C at 9pm, and around 15C by 10pm and 11pm. Rain risk is low, mainly 10% or below.
Visibility starts poor to moderate in the early rain, then improves to good, very good or excellent from later morning onwards. Humidity is high early, around 95%, before falling to the low 50s during the afternoon and rising again in the evening. UV levels peak at 5 around early afternoon.
