United StatesAverage weather for Haleakala National Park in May
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.
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. A few showers might pop up early in the month, but overall, it’ll stay mostly sunny and dry.
With the temperature difference between day and night, it’s smart to wear layers.
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.
In May, there is an average of 29 mm of precipitation, spread over 5 days. The wind speed is around 5 Bft, mostly coming from the Northeast.
Haleakala National Park in May |
New York | ||
|---|---|---|---|
 Average temperature |
30°C | 22°C | |
 Max. temperature |
31°C | 28°C | |
| Min. temperature |
28°C | -5°C | |
 Total precipitation |
29 mm | 105 mm | |
| Rainy days |
5 days | 14 days | |
April
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.
Is May a good time to visit Haleakala National Park?
May is a good month to be in Haleakala National Park for sunny weather. You’ll have high temperatures and not too much rain.
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.
Check out the climate of Haleakala National Park for all months and discover the best travel time
Daily Temperature in May in Haleakala National Park
This chart shows the average daily high and low temperatures in May for Haleakala National Park, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in May in Haleakala National Park
The chart below shows the average daily precipitation in May for Haleakala National Park, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for May, you can expect about 5 days of precipitation in Haleakala National Park.
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.
Temperature in May in Haleakala National Park over the years
This chart shows the average temperature in May in Haleakala National Park, measured in degrees Celsius, over the past few years.
Total precipitation in May in Haleakala National Park over the years
This chart shows the average precipitation in May in Haleakala National Park, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
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.
Weather experiences in May in Haleakala National Park
Have you been to Haleakala National Park in May?
Share your weather experience in May in Haleakala National Park.
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.
Or check out the climate of Haleakala National Park for all months at once
