SeasonMapJamestown weather in May
Saint Helena
May in Jamestown: nice, dry, with clean air — an excellent time to visit.
#5 of 12 months in Jamestown · #119 of 1383 destinations to visit in May · comfort 91/100 (tier S)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Jamestown in May
No notes yet. Open Jamestown on the map to add the first one.
Jamestown climate normals — May
| Daytime high | 23°C / 74°F | 😎 nice |
|---|---|---|
| Nighttime low | 22°C / 72°F | |
| Feels like (high) | 23°C / 73°F | |
| Sea temperature | 24°C / 76°F | 🙂 pleasant |
| Rainfall | 6 mm / 0.2 in | ☀️ dry |
| Rainy days | 2 days | |
| Humidity | 73% | 💧 humid |
| Dew point | 18°C / 64°F | |
| Sunshine | 10.2 h/day | |
| Daylight | 11.4 h | |
| Wind | 29 km/h / 18 mph | |
| Air quality (US AQI) | 50 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Jamestown in May
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
BusySaint Helena Day, school holidays in 3 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Jamestown's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherJamestown's weather doesn't swing hard through the year — comfort stays fairly steady in every month.
What's on in Jamestown in May
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Holiday
Saint Helena Day
21 MayNational holidayClosuresThe island's own public holiday marks its discovery on St Helena's feast day, and the whole population turns out in Jamestown for it. Government offices and most shops close. Source ↗
Where is Jamestown?
Jamestown in May — FAQ
- Is May a good time to visit Jamestown?
- May in Jamestown: nice, dry, with clean air — an excellent time to visit. It ranks #5 of 12 months for Jamestown on SeasonMap's comfort score (91/100).
- What is the weather like in Jamestown in May?
- In May, Jamestown averages a daily high of 23.1°C and a low of 22.3°C, with about 6 mm of rain over roughly 1.6 rainy days.
- What is the air quality in Jamestown in May?
- Jamestown has a mean US Air Quality Index of about 50 in May.