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United StatesThe weather in May in Haleakala National Park
It's hot in May in Haleakala National Park with an average temperature of 30°C. Temperatures this month range from a low of 28°C to a high of 31°C. At night, you can expect temperatures between 20°C and 22°C.
May is a good month to be in Haleakala National Park for sunny weather. You’ll have high temperatures and not too much rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in May for Haleakala National Park, Hawaii. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 35°C in 2019, Haleakala National Park reached the highest temperature in May over the past 10 years. The lowest daytime temperature in this month was 22°C in 2018. The extreme nighttime temperatures ranged from a lowest recorded value of 14°C to a highest value of 25°C.
Rainfall amount
In May, there is an average of 29 mm of precipitation, spread over 7 days. The wind speed is around 5 Bft, mostly coming from the Northeast.
Daily weather in May for Haleakala National Park
Click on any day in May to get detailed info about the usual weather on that day in Haleakala National Park. Check out the historical temperatures and precipitation over the past 10 years on this day.
May weather comparison
| Haleakala National Park | New York | |
|---|---|---|
| Average temperature | 30°C | 22°C |
| Max. temperature | 31°C | 28°C |
| Min. temperature | 20°C | -5°C |
| Total precipitation | 29 mm | 105 mm |
| Rainy days | 7 days | 14 days |
Start of May
The month of May starts in Haleakala National Park with hot temps, averaging around 29°C during the day and nights around 21°C.
Mid May
By mid-May, daytime temps rise to around 30°C, with nights around 22°C. Not much precipitation expected during this period. It’s mostly dry and sunny.
End of May
By the end of May, the average daytime temperature in Haleakala National Park is around 31°C, while nighttime temps are about 21°C. There’s hardly any chance of precipitation. The weather will be mostly dry with plenty of sun.
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UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Check out the climate of Haleakala National Park for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in May in Haleakala National Park, Hawaii. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in May in Haleakala National Park
Temperature in May in Haleakala National Park over the years
Precipitation charts
These charts show the average amount of precipitation in May in Haleakala National Park, Hawaii. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in May in Haleakala National Park
Total precipitation in May in Haleakala National Park over the years
Daily UV index in May in Haleakala National Park
This chart shows the average daily UV index in May in Haleakala National Park, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in May in Haleakala National Park
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Average weather in Haleakala National Park by month
Click on a month below to see detailed weather info for Haleakala National Park. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.