SeasonMapJamestown weather in January
Saint Helena
January in Jamestown: nice, dry, with clean air — one of the best months to visit.
#1 of 12 months in Jamestown · #64 of 1383 destinations to visit in January · comfort 92/100 (tier S)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Jamestown in January
No notes yet. Open Jamestown on the map to add the first one.
Jamestown climate normals — January
| Daytime high | 23°C / 74°F | 😎 nice |
|---|---|---|
| Nighttime low | 23°C / 73°F | |
| Sea temperature | 24°C / 75°F | 🙂 pleasant |
| Rainfall | 5 mm / 0.2 in | ☀️ dry |
| Rainy days | 1 days | |
| Humidity | 78% | 💦 very humid |
| Dew point | 19°C / 66°F | |
| Sunshine | 12 h/day | |
| Daylight | 12.9 h | |
| Wind | 27 km/h / 16 mph | |
| Air quality (US AQI) | 42 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Jamestown in January
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.
Busyschool holidays in 5 of the markets that fill it, one of its best months for weather(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 January
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Nature
Whale shark season
1 Jan – 30 Apr · usuallyDive seasonBook earlyWhale sharks aggregate off the island between January and April and boats go out from Jamestown to snorkel with them. It is snorkelling only, eight people in the water at a time, and touching them is an offence. Source ↗
Where is Jamestown?
Jamestown in January — FAQ
- Is January a good time to visit Jamestown?
- January in Jamestown: nice, dry, with clean air — one of the best months to visit. It ranks #1 of 12 months for Jamestown on SeasonMap's comfort score (92/100).
- What is the weather like in Jamestown in January?
- In January, Jamestown averages a daily high of 23.2°C and a low of 22.5°C, with about 4.5 mm of rain over roughly 1.2 rainy days.
- What is the air quality in Jamestown in January?
- Jamestown has a mean US Air Quality Index of about 42 in January.