Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
Irwin Weather in May
May in Irwin sees daytime temperatures around 23°C (73°F) and lows of 10°C (50°F) at night. With around 111 mm (4.4 in) of rainfall expected, it's worth packing a rain jacket.
Rainfall in Irwin in May
Records from the past 30 years suggest around 16 days of rain, with 111 mm (4.4 in) average for the month. Rain falls regularly this month and can be quite heavy when it does. Showers can be substantial, so waterproof gear is a good idea.
Temperature in Irwin in May
Temperatures in Irwin in May top out at 23°C (73°F) and drop to 10°C (50°F) overnight. This kind of day-to-night contrast is typical for this time of year. At 10°C (50°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.
Sunshine in Irwin in May
The days are predominantly sunny, with an estimated total of around 217 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.Our weather planner can help you find worldwide destinations with pleasant weather during this period. September typically offers the best weather for Irwin.
Irwin Temperature in May
Min Temperature
10°C (50°F)
Max Temperature
23°C (73°F)
Chance of Rain
54%
Precipitation
111 mm (4.4 in)
Rainy days
16 days
Humidity
63% *
Sunshine
217 hours *
Percentage Sunshine
48% *
* Data from: Pittsburgh, the United States of America (47 KM, 29 Miles).
Irwin Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Irwin - and find the best time to visit.
Best Places in the United States of America in May
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America 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 Irwin in May
For Irwin in May, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.
What To Do in Irwin in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling9/10 -
Walking9/10 -
Camping3/10 -
Outdoor sports9/10
Irwin 3-Day Forecast
More climate data for Irwin
Temperature Rainfall Sunshine Humidity
See the full Irwin climate overview or explore weather in the United States of America.
Popular in May
Where to go in May - average daytime high across popular destinations.
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Need travel inspiration? Check out our bucket list articles and be inspired.
Yosemite National Park is definitely worth a visit
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