詹姆斯敦逐月天气
詹姆斯敦最佳旅行时间是1月、2月和4月——1月得分 92/100,最高 23°C,1 个雨天。 最佳季节是夏季,也就是12月至2月(平均 92/100)。
最差的月份是9月,87/100——舒适、干爽、空气闷湿。 查看9月 →
更新于 2026年9月 · 气候平均值来自 ERA5 再分析
詹姆斯敦Jamestown, Saint Helena 圣赫勒拿 · 纳米比亚与博茨瓦纳 · 岛屿92
最佳季节:12月至2月(平均 92/100)· 最差9月(87/100)
- 白天
- 23°C
- 夜间
- 22°C
- 雨天
- 1
- 日照
- 12 h
- 湿度
- 78%
- 白昼时间
- 13 h

詹姆斯敦逐月一览
按詹姆斯敦最适合的行程类型算出的 0–100 舒适度分数,加上气候平均值里的平均最高气温、雨天数和每日日照时数,以及人潮通常的情况。
詹姆斯敦全年有什么活动
节庆、自然奇观、假期,以及要留意的季节——经过编辑筛选并附上来源。细节见各月份页面。
詹姆斯敦在1月的人潮
这里看的是地方本身有多热闹——学校假期和全民假期、编辑标注的月份,以及天气让它有多抢手。人潮从不计入舒适度分数。
人多主要客源市场中有 5 个正逢学校假期、是天气最好的月份之一(估算)
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人潮高峰人多平季人少
詹姆斯敦的旅人笔记
去过的人怎么说——先是全年通用的笔记,再逐月来看。
Trip reports for this famously remote South Atlantic island - roughly 1,200 miles off the coast of West Africa - are sparse on the forum, but posters do flag genuine weather variability: one review simply called it crazy and recommended bringing a jacket, while others found it not very hot and fairly windy, and rough weather has caused real flight delays and cut planned excursion time short on more than one visit. Given the thin destination-specific detail, this note leans on the well-established regional pattern for St. Helena's subtropical, trade-wind-moderated climate: January sits in the island's warmer half of the year, though rainfall stays light and infrequent essentially year-round here - the driest stretch by rainy-day count actually falls later, from around September through November, so warmth and dryness don't track together the way they do on many islands. Posters' own accounts suggest coming prepared for wind and a sudden change in conditions regardless of season.
Forum posters describe July in Jamestown, St Helena as bringing beautiful weather overall, warm during the day but noticeably cooler once the sun sets, enough that a light jacket or sweater becomes genuinely useful in the evening. Posters describe the wider island as green and mountainous rather than a beach destination - no palm trees or sandy beaches here - with real rain a regular feature of the climate in St Helena's lush interior highlands; Jamestown itself, down on the arid coast, actually stays quite dry year-round, with July its wettest month by the island's own climate record and still under 4 rainy days on average. Posters generally rate July as pleasant by day and cool by night for coastal Jamestown itself, a light layer for evenings the main packing consideration, with genuinely wetter, greener conditions found only once you head up into the island's highlands.
在地图上詹姆斯敦的卡片里写下你自己的笔记。