Alter do Chão逐月天气
Alter do Chão最佳旅行时间是7月至9月——8月得分 88/100，最高 32°C，9 个雨天。 最佳季节是旱季，也就是6月至11月（平均 83/100）。
最差的月份是3月，57/100——酷热、雨量惊人、空气清新。 查看3月 →
更新于 2026年9月 · 气候平均值来自 ERA5 再分析
在规划更长的行程？ 巴西最佳旅行时间 →
Alter do Chão🇧🇷 巴西 · 亚马孙地区 · 海滩88
最佳季节：6月至11月（平均 83/100）· 最差3月（57/100）
- 白天
- 32°C
- 夜间
- 25°C
- 雨天
- 9
- 日照
- 10.8 h
- 湿度
- 73%
- 白昼时间
- 12 h
Alter do Chão逐月一览
按Alter do Chão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。
Alter do Chão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。
Alter do Chão在8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River beaches emerge（估算）
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人潮高峰人多平季人少
Alter do Chão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。
Amazon-region forum threads describe January as squarely within what locals call the Amazonian 'winter' - the wet season - with genuinely heavy rain possible, though posters were consistent that it's very unusual for rain to fall the entire day; sun typically breaks through at some point. That said, one thread specifically warned that during the peak of the rainy season the surrounding area can flood, and recommended the dry season (roughly July through December, aligned with the Southern Hemisphere's drier months) instead for anyone prioritizing accessible trails and beaches over the lush, high-water river scenery January brings.
Forum posters describe September as squarely inside the Amazon's dry season - locally called 'summer,' running roughly July to December - which is also when Alter do Chao's famous river-sand beaches along the Tapajos emerge as water levels drop. Visitor reports from within this dry stretch describe delightful, warm conditions and calm, low water levels ideal for beach time and swimming, in contrast to the wetter 'winter' months when the river rises and submerges the beaches entirely. Posters treat the dry season generally, and September specifically, as the reliable window to actually see and enjoy the riverside beaches this destination is known for, rather than a hit-or-miss gamble on water levels.
在地图上Alter do Chão的卡片里写下你自己的笔记。