博伊西 12月 天气
博伊西的12月：寒冷、略有降雨，还有空气清新——一年中最不值得去的月份之一。
更新于 2026年9月 · 气候平均值来自 ERA5 再分析
博伊西：12 个月中排第 12 · 12月值得去的目的地 1413 个中第 1226 · 舒适度 47/100（等级 F）
- 白天
- 4°C
- 夜间
- -3°C
- 雨天
- 9
- 日照
- 5.8 h
- 湿度
- 75%
- 白昼时间
- 9 h
12月的博伊西旅人笔记
来自附近森瓦利的笔记（相距 149 公里）
博伊西还没有自己在12月的笔记——下面这些是关于森瓦利的，离得够近，季节相同。
Locals call December here touch and go, which is arithmetic rather than pessimism: Bald Mountain opens on Thanksgiving on a great deal of snowmaking and is usually running top to bottom by then, so the lifts are a safer bet than the snow. Early-December trips have had terrific conditions. Late December has also, in plenty of years, been short of enough natural cover for the cross-country at Galena, and two long-time residents on the forum disagree about how often that happens. Galena Lodge is the fallback when the downhill is thin, for nordic skiing and snowshoeing. The record: 0.2C days that feel like -3C, -12.4C nights, 66.1cm of snow, 8.6 precipitation days and only 6.2 hours of sun.
博伊西的其他月份
Forum posters describe March in Boise as genuinely transitional - it could feel like winter or like spring, sometimes both within the same day. Posters citing a mid-March spring break stretch reported daytime highs typically in the low 60sF with nighttime lows in the 30sF, alongside spring flowers and greenery starting to appear. Posters discussing wintry conditions that occasionally linger into late February or early March are consistent that any snow or cold snap this late in the season tends to resolve within a day or two rather than sticking around. Posters generally rate March as a genuinely mixed early-spring month for Boise, mild afternoons and chilly mornings the reliable pattern, with real day-to-day variability still worth planning around.
Forum regulars consistently pick September as prime time: mid-month temperatures run about 10 degrees cooler than late August (roughly 65F vs 75F), so you still get long warm days and comfortable nights without August's peak heat and fire risk. One poster's blunt reasoning: it's hot in August with a real chance of wildfire smoke, so September is when 'most tourists are gone and locals have their place back' - you also land right in the run of outdoor events like Jazz on the Grove and the weekly Alive After Five series. Worth a heads-up regardless: wildland fire smoke is possible in September, not guaranteed, but common enough that forum regulars flag it every year.
在地图上博伊西的卡片里写下你自己的笔记。
博伊西气候平均值——12月
月平均值来自 ERA5 再分析。AQI 为该月美国空气质量指数的平均值。
博伊西在12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。
人潮高峰Christmas and New Year、美国的Winter / Christmas break、主要客源市场中有 2 个正逢学校假期（估算）
人潮高峰人多平季人少
博伊西天气最好的月份
按这个目的地自己全年的气候舒适度分数排序——这和它有多拥挤是两回事（见上方的人潮）。
天气最难熬博伊西天气最好的时候是5月、6月和9月——是几段分开的窗口，而不是一个连续的季节。
12月正好赶上Winter inversion。
天气最佳天气尚可天气最难熬
12月的博伊西有什么活动
每年重复的季节活动、自然奇观、停业期和假期——经过编辑筛选并附上来源。
- 风险
Winter inversion
11月15日 – 2月15日 · 通常冬季雾霾Cold air pools in the U-shaped valley under a warm lid and the wood smoke and traffic exhaust stay with it, sometimes for weeks. Drive twenty minutes up into the foothills and you come out above it into sunshine. 来源 ↗
- 假日
Christmas and New Year
12月24日 – 1月1日圣诞与新年有停业人多Christmas Day and New Year's Day are federal holidays: on 25 December most shops, museums and many restaurants close, and airports stay busy through the week between as families travel. New Year's Eve fills bars and restaurants, many at set-menu prices. 来源 ↗
就在附近，而且正有活动
博伊西方圆 300 公里内——一日游或短途可达——而且这个月有活动。绝不计入舒适度分数。
博伊西在哪里？
12月的博伊西——常见问题
- 12月适合去博伊西吗？
- 博伊西的12月：寒冷、略有降雨，还有空气清新——一年中最不值得去的月份之一。以 SeasonMap 的舒适度分数来看，这是博伊西 12 个月里的第 12 名（47/100）。
- 博伊西在12月的天气怎么样？
- 12月的博伊西平均最高气温 3.9°C、最低气温 -3.3°C，降雨约 40.8 mm，雨天约 8.5 天。
- 博伊西在12月的空气质量如何？
- 博伊西在12月的美国 AQI 月平均值约为 37。
- 博伊西在12月会下雪吗？
- 博伊西在12月的降雪量约 16.2 cm。
300 公里内：Sun Valley的Ski season在11月26日 – 4月18日前后举行。