ラスベガス 3月の天気
ラスベガスの3月:快適、雨が少ない、空気がきれい — 一年で最も訪れやすい月のひとつ。
2026年9月更新 · ERA5再解析による気候平年値
ラスベガスでは12か月中1位 · 3月に訪れたい旅行先で1413か所中28位 · 快適スコア94/100(Sランク)
- 日中
- 22°C
- 夜
- 10°C
- 雨の日
- 2
- 日照
- 10.5 h
- 湿度
- 36%
- 日の長さ
- 12 h

3月のラスベガスについての旅行者の声
March is the month the Las Vegas forum calls the most erratic of the year - 80s one year, struggling out of the 50s the next - with an average high near 70F, an average low near 45F, and a reputation as one of the windier, cloudier months. Wind and cloud together make it feel a good deal cooler than the number suggests. The practical question is the pools: many open by mid-March for spring break, and the realistic expectation for the end of the month is a mix of pool days and days too cool for it. Pack layers and keep an indoor plan. The record: 21.8C days that feel like 18C, 10.3C nights, 2 precipitation days, humidity 36 percent and 10.5 hours of sun.
ラスベガスのほかの月
Regulars are consistent that the dry heat here is a real, meaningfully different experience than a humid climate at the same temperature - sauna heat rather than steam room heat, with sweat evaporating fast enough that feeling sticky isn't really a problem. Our row backs the dry read directly, 32.1C reading as a real 29C, over 19.5C nights, with rain almost entirely absent, 4.5mm across under a day, and humidity down to a desert-dry 21 percent. Regulars are specific that the first two weeks tend to run more comfortable, with the back half of the month often pushing toward 100 Fahrenheit and nights that stay warmer too as the month wears on. The record: 12.9 hours of sun, a 16.7 kph wind and AQI 64.
February is the month regulars warn is not a pool holiday. Most resort pools are closed for the season; a handful of the big properties keep a heated one open, and if yours is shut you are usually told at check-in which neighbour will have you. Outdoor dining and club terraces are largely closed too, and walking the strip after dark is genuinely unpleasant. Our row shows why: 18C by day reads as 14C, and 6.8C at night reads as 3C, on 40 percent humidity and a dew point of minus 4.9C - desert air keeps nothing after sunset. Rain is 14mm across 1.9 days. The record: 9.4 hours of sun, a 14.4 kph wind and AQI 43.
Regulars describe November here as sunny days and cool, often windy nights, and the numbers are starker than that sounds. Our row gives 20.9C by day but a felt 18C, and 9.1C at night that feels like 5C - a desert November at 34 percent humidity with a dew point of minus 4.1C loses its heat the moment the sun goes. Their verdict on the pools is worth having before booking: mid-November is very iffy even where the water is heated, and several resorts keep only one pool open. Rain is 6.7mm in the month. Take a light layer for the day and a proper coat for the evening. The record: 8.9 hours of sun, a 12.6 kph wind and AQI 38.
Las Vegas forum threads describe January as surprisingly variable for a desert destination, with daytime highs typically in the mid-to-upper 50s Fahrenheit but posters reporting anywhere from the 30s to the 70s depending on the specific week. The bigger consistent theme was the day-to-night swing: it can feel genuinely pleasant in the sun by afternoon, then drop sharply once the sun sets, with lows commonly in the mid-to-upper 30s. A few posters mentioned occasional snowflakes or de-icing on unusually cold years, while others reported warm enough days to sit by the pool - the standard advice across threads was to layer up and not assume desert weather means consistently warm.
通年のメモはラスベガスの概要ページにあります。 地図のラスベガスのカードから自分のメモを追加できます。
ラスベガスの気候平年値 — 3月
ERA5再解析による月平均値です。AQIはその月の平均US AQI(米国大気質指数)です。
3月のラスベガスの混雑
その場所自体の混み具合 — 学校休暇や大型連休、編集部がタグ付けした月、そして天気の良さによる人気の高さ。快適スコアには含まれません。
ピークの混雑March Madness、アメリカ合衆国のSpring break(推定)
ピークの混雑混雑ショルダーシーズン閑散
ラスベガスの天気が良い月
この旅行先自身の一年間の快適スコアでランキングしています — 混み具合とは別のものです(上の「混雑」を参照)。
天気が最高ラスベガスの天気が最も良いのは3月、4月、10月です — ひと続きのシーズンではなく、別々の時期です。
3月にはDesert wildflowersがあります。
天気が最高天気はまずまず天気が厳しい
3月のラスベガスのイベント
毎年の季節のイベント、自然の見どころ、休業、祝日 — 厳選し出典を明記しています。
- 自然
Desert wildflowers
3月1日〜4月15日 · 例年野の花・花の見頃A wet winter puts flowers across Red Rock and Valley of Fire for a few weeks in early spring; a dry one produces almost nothing. 出典 ↗
- 祭り
March Madness
3月15日〜4月8日 · 例年スポーツイベント混雑The opening days of the college basketball tournament are the busiest hours the sportsbooks get, with seats claimed at opening and a queue outside from breakfast. Midweek prices behave like a weekend. 出典 ↗
- ルール
Red Rock timed entry
10月1日〜5月31日早めの予約をThe scenic drive requires a booked slot for entry between eight and five from October to May, released thirty days ahead. Before eight or after five needs none. 出典 ↗
- 季節
Desert hiking season
10月15日〜4月15日 · 例年トレイルシーズンThe half of the year the canyons work: Red Rock, Valley of Fire and the Mojave within a couple of hours, cool by day and quiet midweek.
近くで開催中のイベント
ラスベガスから300 km以内 — 日帰りやちょっとした移動で行けて、今月何かがある場所です。快適スコアには含まれません。
ラスベガスはどこにある?
3月のラスベガス — よくある質問
- 3月はラスベガスを訪れるのに良い時期ですか?
- ラスベガスの3月:快適、雨が少ない、空気がきれい — 一年で最も訪れやすい月のひとつ。SeasonMapの快適スコアでは、ラスベガスの12か月中1位です(94/100)。
- 3月のラスベガスはどんな天気ですか?
- 3月のラスベガスは、平均最高気温21.8°C、最低気温10.3°C、降水量は約14.2 mmで、雨の日はおよそ2日です。
- 3月のラスベガスの大気質はどうですか?
- 3月のラスベガスの米国大気質指数(US AQI)は、平均約43です。
300 km圏内:Death Valley National ParkのDesert wildflower bloom(2月10日〜4月15日ごろ)、Zion National ParkのCalifornia condors over the canyon(1月1日〜12月31日)。