SeasonMapJamestown weather by month
Saint Helena
The best time to visit Jamestown is January, February and April — 92/100 in January, 23°C and 1 rainy day. The best season is summer, December to February (92/100 on average).
The worst month is September at 87/100 — nice, dry, muggy air. See September →
Updated September 2026 · climate normals from ERA5 reanalysis
Jamestown, month by month
Comfort score out of 100 for the kind of trip Jamestown is best for, the average high, rainy days and hours of sun a day from the climate normals, and how busy it tends to be.
| Month | Score | Tier | High | Rain | Sun | Crowds | On |
|---|---|---|---|---|---|---|---|
| JanJanuary | 92 | S | 23°C | 1 d | 12 h | Busy | 1 |
| FebFebruary | 92 | S | 24°C | 1 d | 12 h | Busy | 1 |
| MarMarch | 91 | S | 25°C | 2 d | 11 h | Shoulder | 1 |
| AprApril | 92 | S | 24°C | 2 d | 11 h | Busy | 1 |
| MayMay | 91 | S | 23°C | 2 d | 10 h | Busy | 1 |
| JunJune | 90 | S | 22°C | 2 d | 10 h | Shoulder | 1 |
| JulJuly | 88 | A | 21°C | 2 d | 10 h | Shoulder | 1 |
| AugAugust | 87 | A | 20°C | 1 d | 10 h | Quiet | 1 |
| SepSeptember | 87 | A | 20°C | 0 d | 10 h | Quiet | 1 |
| OctOctober | 88 | A | 20°C | 0 d | 11 h | Quiet | 1 |
| NovNovember | 90 | S | 20°C | 0 d | 12 h | Shoulder | 1 |
| DecDecember | 91 | S | 22°C | 0 d | 12 h | Shoulder | 1 |
What's on in Jamestown through the year
Festivals, natural spectacles, holidays and the seasons to watch out for — curated and sourced. The month pages carry the detail.
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