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Grantham Weather in May
Grantham in May averages 17°C (63°F) during the day and 8°C (46°F) at night. Some rainfall is typical for this time of year.
Rainfall in Grantham in May
Typically, about 15 days will experience rainfall, with an average of 60 mm (2.4 in) for the month. Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.
Temperature in Grantham in May
May in Grantham sees highs of 17°C (63°F) and lows of 8°C (46°F) overnight. The difference between afternoon and evening temperatures is usually noticeable. With overnight lows of 8°C (46°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.
Sunshine in Grantham in May
Expect a lot of sunshine this month, with about 193 hours of sun. These sunny conditions add to the overall experience.For Grantham itself, June, July, August and September generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Grantham Temperature in May
Min Temperature
8°C (46°F)
Max Temperature
17°C (63°F)
Chance of Rain
48%
Precipitation
60 mm (2.4 in)
Rainy days
15 days
Humidity
81% *
Sunshine
193 hours *
Percentage Sunshine
*
* Data from: Nottingham, the United Kingdom (34 KM, 21 Miles).
Grantham Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Grantham - and find the best time to visit.
Best Places 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. See all of the United Kingdom in May →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Grantham in May
Comfortable temperatures call for an easy wardrobe in May. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Wet weather is likely, so pack waterproof gear for multiple rainy days. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.
What To Do in Grantham in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming6/10 -
Cycling6/10 -
Walking6/10 -
Barbeque6/10 -
Camping4/10 -
Outdoor sports10/10
Grantham 3-Day Forecast
More climate data for Grantham
Temperature Rainfall Sunshine Humidity
See the full Grantham climate overview or explore weather in the United Kingdom.
Popular in May
Where to go in May - average daytime high across popular destinations.
London
18°C (64°F) Bath17°C (63°F) Manchester
17°C (63°F) York17°C (63°F) Torquay15°C (59°F) Glasgow15°C (59°F) Edinburgh15°C (59°F) Blackpool14°C (57°F) Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Hike the South West Coast Path
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