Parks / Haleakalā
When to visit
Haleakalā.
The park drew an average of 905K recreation visits a year over 2016–2025. July is the busiest month at 9.3% of the year's visits, and November the quietest — 1.3× fewer people.
Crowds
July averages 84,345 recreation visits against 65,427 in November. Visit counts are the National Park Service's own monthly totals for the whole park, so unlike the weather figures below they describe every entrance and every trailhead at once.
Conditions through the year
August is the warmest month at 6,667 feet, averaging a daily high of 61°F, and February the coldest at 53°F with lows near 44°F. February is the wettest at 15.3 inches, June the driest at 4.5.
Daylight runs from 10h 54m in December to 13h 24m in June, a difference of 2h 30m of usable time in a day.
No month in the record averages a day of measurable snowfall at that point.
Those temperatures come from a reanalysis grid cell centred at 6,667 feet. A park that spans a range of elevations is warmer in some places and colder in others than one cell can show, and most parks span a wide one. Read the month-to-month shape — which months run warm, wet or snowy relative to each other — rather than any single figure as the temperature you will meet at a given trailhead.
Every month
| Month | High | Low | Wet days | Snow days | Daylight | Visits |
|---|---|---|---|---|---|---|
| January | 55° | 45° | 19 | 0 | 11h 0m | 75,343 |
| February | 53° | 44° | 25 | 0 | 11h 30m | 73,405 |
| March | 54° | 45° | 24 | 0 | 12h 0m | 78,695 |
| April | 55° | 46° | 26 | 0 | 12h 36m | 73,090 |
| May | 57° | 47° | 25 | 0 | 13h 6m | 80,299 |
| June | 59° | 49° | 18 | 0 | 13h 24m | 80,704 |
| July | 60° | 50° | 20 | 0 | 13h 12m | 84,345 |
| August | 61° | 51° | 19 | 0 | 12h 48m | 74,100 |
| September | 60° | 50° | 23 | 0 | 12h 12m | 72,241 |
| October | 59° | 50° | 23 | 0 | 11h 42m | 65,643 |
| November | 57° | 48° | 22 | 0 | 11h 12m | 65,427 |
| December | 55° | 46° | 24 | 0 | 10h 54m | 81,892 |
Averages over 10 years, 2016–2025. Wet days count days with at least 0.04″ of precipitation; snow days at least 0.4″ of snowfall.
There is no best month here
This page does not pick one. Crowds and weather alone cannot: in the desert parks the emptiest months are empty because the heat is dangerous, and in the mountain parks the quietest ones are quiet because the roads are shut. What a month has usually been like and what it will be like on your date are also different claims — for the second, the planner reads the live seven-day forecast and the park's own notices.
ParkReady is independent and is not affiliated with the National Park Service. Road, trail and campground status comes from the park, and the park is the only authority on it.
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