Sea Island, Georgia in May: Warm, Humid, Afternoon Storms Likely
May on Sea Island (Golden Isles, GA) is early summer: warm days, mild nights, rising humidity, and the start of the afternoon thunderstorm season.
Climate Averages (May)
| Metric | Value |
| Average High | 85°F (29°C) |
| Average Low | 64°F (18°C) |
| Mean Temperature | 75°F (24°C) |
| Relative Humidity (avg) | 75% |
| Precipitation | 4.5 in (114 mm) |
| Rainy Days | ~8–10 |
| Ocean Temp | ~75°F (24°C) — swimmable |
| Sunshine | ~9 hrs/day |
What to Expect
- Mornings: Sunny, pleasant — best for golf, tennis, beach.
- Afternoons: Convection builds → scattered thunderstorms (brief, heavy, 2–5 PM).
- Evenings: Clear, comfortable — outdoor dining ideal.
- Hurricane risk: Very low (season starts June 1; peak Aug–Oct).
Packing Tips
- Light layers, rain jacket / compact umbrella.
- Sun protection (UV index 9–10).
- Lightweight evening wear (resort casual).
May is a sweet spot: warm enough for ocean, not yet peak heat/crowds/hurricane season.