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.
St. Helena Weather in May
In St. Helena, May brings high daytime temperatures around 26°C (79°F), with nights cooling to 10°C (50°F). Some rainfall is to be expected.
Rainfall in St. Helena in May
Historically, approximately 4 days this month are expected to have rain, averaging 21 mm (0.8 in). Rain days are few and the total is low, so this is a largely dry month. Any showers that do occur tend to be brief.
Temperature in St. Helena in May
The excellent temperature in St. Helena in May makes it a solid month to visit, with 26°C (79°F) during the day and 10°C (50°F) at night. This kind of day-to-night contrast is typical for this time of year. At 10°C (50°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.
Sunshine in St. Helena in May
The month enjoys around 310 hours of sunshine, creating mostly sunny days with good weather conditions.If your ideal day consists of dry skies and pleasant temperatures, April, May and October typically offer the best circumstances for St. Helena.
St. Helena Temperature in May
Min Temperature
10°C (50°F)
Max Temperature
26°C (79°F)
Chance of Rain
14%
Precipitation
21 mm (0.8 in)
Rainy days
4 days
Sunshine
310 hours *
Percentage Sunshine
76% *
* Data from: Healdsburg, the United States of America (36 KM, 22 Miles).
St. Helena Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in St. Helena - 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 St. Helena in May
Warm but pleasant conditions in St. Helena in May. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Light rain is possible, so consider bringing a small umbrella or rain jacket. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
What To Do in St. Helena in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming10/10 -
Cycling8/10 -
Walking8/10 -
Barbeque10/10 -
Camping10/10 -
Outdoor sports8/10
St. Helena 3-Day Forecast
More climate data for St. Helena
See the full St. Helena 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.
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