Dry Tortugas National Park in May
May at Dry Tortugas National Park averages a daytime high near 86°F and an overnight low around 75°F, with about 2" of precipitation. Visitation runs about 1.2× the park's average month, which makes May an average month here.
- Average low
- 75°F
- Average high
- 86°F
Range across the year: 65°F to 91°F
- Precipitation
- 2.0 in
- Daylight
- 13.2 hours
Roughly 10% of the park's yearly visitors come in May: roughly 7,000 recreation visits in a typical year, based on National Park Service monthly counts from 1979 to 2025.
That makes May the 2nd-busiest of the park's twelve months, sitting between the June peak (1.2×) and the October low (0.7×).
On our Best Time to Visit score May rates 39/100 ("Poor"). Our recommended month is February: pleasant weather with noticeably thinner crowds (shoulder season).
The daily average of about 80°F is warm enough that midday heat is worth planning around. These figures are 1991–2020 NOAA climate normals from the nearest station, about 0.1 miles from the park.
Because June, July and August together draw about 28% of annual visitors, choosing May instead steps outside that summer crush — the single biggest lever on how crowded the park feels.
You'll have about 13.2 hours of daylight in May to explore — between the 10.5-hour midwinter low and the 13.5-hour summer high.
Park-wide, 2025 drew 89,355 recreation visits, up 5.3% from 84,873 in 2024.
Across the past decade overall visitation has risen about 34.7%, so a May visit is likely to feel busier than it did a few years ago.
How May compares with the months around it
| Month | Avg high / low | Crowds | Best-time score |
|---|---|---|---|
| April | 83°F / 71°F | 1.1× Average | 49 Fair |
| May | 86°F / 75°F | 1.1× Average | 39 Poor |
| June | 89°F / 77°F | 1.2× Busy | 23 Poor |
All twelve months at Dry Tortugas, with the best time to visit.
Frequently Asked Questions
May averages a daytime high near 86°F and an overnight low around 75°F at Dry Tortugas National Park, with about 2 inches of precipitation. These are 1991–2020 NOAA climate normals from the nearest station, about 0.1 miles from the park, so conditions inside the park can differ, especially at other elevations.
May is average at Dry Tortugas National Park (about 1.1× the average month). Our best-time score rates it "Poor" at 39/100. Our recommended month is February.
The busiest month is June and the quietest is October. May sits at about 1.1× the park's average, or 10% of annual visitation.
A typical May sees about 7,000 recreation visits at Dry Tortugas National Park, based on National Park Service monthly counts from 1979–2025.
Where to stay near Dry Tortugas in May
Booking a May trip to Dry Tortugas National Park? Compare hotels, cabins and vacation rentals near the park with live May availability and prices.
Top-rated places to stay near Dry Tortugas
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See the full ranking of the best national parks to visit in May.
Source: National Park Service Visitor Use Statistics (1979–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-10-11.