Congaree in May: Crowds, Weather & What to Pack
Peak crowds · VisitWhen score 55/100 · #9 of 12 months
May is peak season — expect the year's biggest crowds at Congaree National Park: crowds run 100% of the May peak (29,060 average visits). Weather: highs average 84°F and lows 59°F, with 3.6″ of precipitation and 13.9 hours of daylight. Computed from NPS and NOAA data.
Bring for Congaree in May
- A light layer you can shed by midday (long sleeve or windbreaker)See it on AmazonWhy: a 25°F swing between the average low of 59°F and high of 84°F.
- Sun protection and 2L+ water per personSee it on AmazonWhy: highs average 84°F.
- Rain shell + pack coverSee it on AmazonWhy: 3.6″ of precipitation is normal this month.
Affiliate links: VisitWhen earns from qualifying purchases, at no extra cost to you. Prices can change; Amazon shows the current one.
Congaree in May: what the park service says
May closes out Congaree's spring, with highs in the mid to upper 70s°F and around 3 inches of rain on average, by the park's seasonal guide. The park recommends spring and fall above all, when temperatures are most comfortable. From June, the park warns, summer heat and humidity set in, with heat index readings that can top 110, so May is the last month of the comfortable spring window.
Source: NPS, checked 2026-11-05.
Crowds in May
May is Congaree's busiest month — an average of 29,060 recreation visits (2021–2025), the park's crowd peak. Trailheads and parking fill accordingly — book early and start days at dawn.
Weather & daylight
Days run warm (highs average 84°F), and nights stay mild (lows average 59°F). Average precipitation is 3.6″ for the month. Mid-month daylight runs 13.9 hours.
NOAA 1991–2020 monthly normals, station N 5NE, SC US (17 mi from park coordinates, 322 ft elevation) — conditions vary inside the park, especially with elevation. Daylight computed for the 15th of May.
What to pack for Congaree in May
Computed from the month's weather normals above — not a generic list.
- A light layer you can shed by midday (long sleeve or windbreaker) — a 25°F swing between the average low of 59°F and high of 84°F
- Sun protection and 2L+ water per person — highs average 84°F
- Rain shell + pack cover — 3.6″ of precipitation is normal this month
- Waterproof boots — plus navigation and a basic first-aid kit — 3.6″ of precipitation is normal this month
As an Amazon Associate, VisitWhen earns from qualifying purchases. Gear names above link to Amazon searches or to a specific product — we don't show or set prices; you always see Amazon's current price.
If your dates are flexible, consider shifting: The computed best months for Congaree are January and February.
Also at their best in May
Other parks whose computed May verdict is a best window — same NPS × NOAA formula:
- Lake Clark in May — 7% of peak crowds, highs 59°F, score 96/100
- North Cascades in May — 11% of peak crowds, highs 69°F, score 96/100
- Katmai in May — 1% of peak crowds, highs 52°F, score 95/100
- Gates of the Arctic in May — 12% of peak crowds, highs 56°F, score 94/100
Common questions
Is Congaree crowded in May?
Yes — May runs 100% of Congaree's peak, averaging 29,060 recreation visits (NPS, 2021–2025). See every month at Congaree.
What is the weather like in Congaree in May?
Average highs of 84°F, lows of 59°F, 3.6″ of precipitation (NOAA 1991–2020 normals, N 5NE, SC US station). Compare it with other national parks in May.
What should I pack for Congaree in May?
A light layer you can shed by midday (long sleeve or windbreaker); Sun protection and 2L+ water per person; Rain shell + pack cover — the full weather-computed list is on this page. Going in June instead? Congaree in June has its own list.
See also: the best national parks to visit in May · Last verified 2026-09-24