Heathrow weather in May (United Kingdom)

How does the May weather in Heathrow compare to other months? Use this page to get an overview of the month’s weather conditions.

Temperatures

Typically, May in Heathrow includes moderate temperatures and moderate rainfall. Daytime temperatures hover around 18°C, while nights can cool down to about 9°C.

Precipitation

Heathrow in May usually receives moderate rainfall, averaging around 58 mm for the month. Looking at the last 30 years, the data shows about 14 days with rain.

Average sunshine

With around 209 hours of sunshine, the days are mostly sunny. It gives a pleasant and vibrant feel to the area.

If your ideal day consists of dry skies and moderate temperatures June, July, August and September generally stand out with the best circumstances. While January, February and December tend to showcase less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Heathrow climate page with graphs.

 

Heathrow, monthly averages in May

Min Temperature 9°C  

Max Temperature 18°C  

Chance of Rain 47%  

Precipitation 58 mm  

Rainy days 14 days  

Humidity 66% *  

Windspeed 11 km/h *  

Sunshine 209 hours *  

Percentage Sunshine 41% *  

Where to go in the United Kingdom in May

Find out more about the weather in the United Kingdom and which places have the best travel conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in this month?

For visitors traveling to Heathrow, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Cycling

6/10

Walking

6/10

Camping

4/10

Outdoor sports

10/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Heathrow.

Our site offers climate and forecast data for every country in the world. Are you going to the United Kingdom? On this website you can find historical weather averages for many cities in the United Kingdom. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.