Full list of UK areas affected by Met Office red 'very high' warning this week During the spring and summer months the Met Office issues a five-day pollen forecast to warn prepare hay fever sufferers Hay fever season is officially here and the Met Office has warned of a "very high" pollen across the UK this week (Image: Anadolu via Getty Images ) The Met Office has issued six red "very high" alerts across the UK this week as temperatures are set to soar to 27C. Red pollen warnings have been issued in parts of the south of England, Wales and parts of the Midlands from Monday, April 28, for the next five days, and multiple other areas UK areas have been issued with less severe amber "high" warnings. ‌ Hay fever, which affects more than ten million people in the UK, is an allergy to pollen grains released during the pollen season which normally runs from March to November in the UK. Throughout the pollen season, the Met Office issues a five-day pollen forecast to warn hay fever sufferers of when they can expect the worst symptoms. Article continues below They issue alerts of varying severities from low (green), medium (yellow), high (amber), and very high (red). Symptoms of hay fever can include congestion, sneezing, itchy eyes and sometimes even headaches and hives. Here you can see the Met Office pollen warnings across the UK this week (Image: Met Office ) These pollen warnings comes as the Met Office has forecast a warm and sunny week for most of the UK, reaching a whopping 27C in London on Wednesday, April 30, and peaking at around 25C in Greater Manchester the same day. ‌ Brits have been warned to protect their skin with SPF if they plan to spend time outdoors as the UV levels could be as high as "August levels". Content cannot be displayed without consent From Monday, April 28, Wales, South West England, West Midlands, East Midlands, East of England and London and the South East of England have all been issued with the severe red pollen warning. ‌ This "very high" warning remains in place across these six areas all week, until Friday, May 2, when South West England reduces to an amber "high" pollen warning. People who suffer from hay fever are urged to take antihistamines before going outside, take off their outdoor clothes when they get inside and to wash their hands and face to avoid the pollen particles as much as possible. Full list of areas affected by red "very high" pollen warnings Monday, April 28 ‌ Wales South West England West Midlands East Midlands East of England London and the South East of England Tuesday, April 29 Wales South West England West Midlands East Midlands East of England London and the South East of England ‌ Wednesday, April 30 Wales South West England West Midlands East Midlands East of England London and the South East of England Thursday, May 1 Article continues below Wales South West England West Midlands East Midlands East of England London and the South East of England Friday, May 2