United States weather

Our guide to the weather in the United States during May

23

Average high

5

UV Index

204mm

Monthly rainfall

74%

Humidity

We've looked at the most up-to-date weather data for the United States, covering the last 12 years up to 2024, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about the United States weather in May.

How warm is it in the United States during May?

The temperature reaches around 23℃ during the daytime in May, falling away to 13℃ at night. The UV index will be moderate at this time of year, so not something to worry about for the average person. However, if you're going to be outside for long periods it's worth wearing a broad spectrum SPF 30+ sunscreen and UV-blocking sunglasses. Remember that bright surfaces, such as water and sand increase UV exposure.

Does it rain in the United States during May?

May is typically the wettest month in the United States. On average, there will be 9 rainy days during the month, amounting to 203.7mm in total. That's a lot of rain. For comparison, the wettest months in the UK typically sees between 80mm and 100mm, depending on where you are. There's a good chance that you'll catch a thunderstorm during your trip.

Is it windy in the United States during May?

You're unlikely to experience any strong winds. Expect a gentle breeze that increases to moderate at times during May. With warm air temperatures and high humidity, any breeze will feel warm but refreshing.

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Books inspired by the United States

Our hand-picked selection of books to get you in the mood for your United States holiday

United States Blog posts

From the UK's most popular travel bloggers

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New York In May – Things To Do, Weather & Events

25th April 2024 by I'm just a girl 16

If you're thinking of heading to the Big Apple during the vibrant month of May and need some inspiration for your itinerary, look no further. From exciting events to must-see attractions, Chloe's guide has everything you need to make the most of your trip to New York in May...

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What Is Miami Famous For?

28th April 2024 by Inside the Travel Lab

Miami is that sun-soaked city of sparkling beaches, salsa rhythms, and sizzling nightlife. A gateway to Latin America, there’s a reason they call it the ‘Magic City’. From world-famous South Beach to the lively streets of Little Havana, Miami promises a whirlwind of experiences in just one place. So, what is Miami famous for? After visits over several decades, including one slice of my honeymoon, here’s what the city is best known for....

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1 Day Brooklyn Itinerary – What To Do In Brooklyn NY In One Day

22nd April 2024 by I'm just a girl 16

Welcome to the 1 Day Brooklyn Itinerary - What To Do In Brooklyn NY In One Day blog post by Chloe Dickenson. If you're heading to New York City and keen to explore Brooklyn, this detailed itinerary is just what you need. From must-see attractions to hidden gems, this guide has got you covered for an unforgettable day in Brooklyn. So, grab a cuppa and let's dive into the best of Brooklyn!...

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4 Unique Experiences To Enjoy On The Las Vegas Strip

15th April 2024 by The Rare Welsh Bit

Renowned for its luxurious casinos, exquisite dining options, and vibrant entertainment offerings, Las Vegas attracts approximately 40 million tourists from across the globe annually. Whether you're savouring Michelin-starred dishes at top-notch eateries, testing your fortune at the roulette tables of The Bellagio, admiring the mesmerising Fountains of Bellagio, or embarking on a unique adventure, the Las Vegas Strip promises an unforgettable experience....

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New York In April Travel Guide – Weather, Things To Do & Events

3rd April 2024 by I'm just a girl 16

Are you looking for tips on the best things to do in NYC during spring? Perhaps you’re just wondering about the average temperature in New York in April or maybe you’re looking for some of the best April events in New York City? This huge NYC April travel guide has got you covered with everything you need to know!...

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11 Best Places In Montana You Must Visit

25th March 2024 by Hand Luggage Only

Perched in the northernmost fringes of the US, Montana is an incredible state to explore. It’s the kind of state that’s got a little something for every traveller, especially if you love the great outdoors. Not only that, there are so many of the best places to see in Montana that are perched all over the state. This makes it one of the best US states to visit on a road trip, especially if you’re already in the wider northerly area of the US. After all, you can include a trip to Montana...

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How to Find the Best Hotels in New York?

21st March 2024 by Two Monkey's Travel

New York City, the vibrant metropolis that never sleeps, beckons travelers from around the globe with its iconic skyline, diverse culture, and endless array of attractions. Whether you’re visiting for business or pleasure, one of the most crucial aspects of your trip is finding the perfect place to stay....

Weather in the United States

Our month-by-month guide to the weather and climate in the United States

5.1

United States weather in

January
6.3

United States weather in

February
13.8

United States weather in

March
18.4

United States weather in

April
23.3

United States weather in

May
30.3

United States weather in

June
32.7

United States weather in

July
31.9

United States weather in

August
28.0

United States weather in

September
20.1

United States weather in

October
12.9

United States weather in

November
6.8

United States weather in

December