This is the outlook for the next four weeks using the JMA issued by the Japanese Met Agency. This is just one model the JMA but followers will know that I normally publish it every Thursday or Friday. I have added the three images together and I have rotated them and added a red line so you can see the UK. Blue colours are low pressure areas and orange’s colours are high pressure areas.
Week 1 3rd May to 9th.
High pressure looks like it will be in control bringing mainly dry conditions and temperature 2 or 3 degrees above average for early May.
Week 2 10th May to 16th.
High pressure is still looking like will be mainly in control bringing mainly dry conditions and temperatures around average, 1 or 2 degrees cooler than the previous week.
Week 3-4 17th May to 30th.
A small high pressure area will be over the UK bringing overall fairly dry conditions and temperatures around average for the final third of the month.