マートルビーチ 3月の天気
マートルビーチの3月:快適、ときどき雨 — 訪れるのにとても良い時期。
2026年9月更新 · ERA5再解析による気候平年値
マートルビーチでは12か月中8位 · 3月に訪れたい旅行先で1413か所中858位 · 快適スコア72/100(Bランク)
- 日中
- 19°C
- 夜
- 9°C
- 雨の日
- 7
- 日照
- 8.9 h
- 湿度
- 70%
- 日の長さ
- 12 h

3月のマートルビーチについての旅行者の声
近くのチャールストンからのメモ(141 km)
マートルビーチには3月のメモがまだありません — これは季節を共にする近くのチャールストンについてのメモです。
March in Charleston is the month regulars call variable before they call it good: some years it is in the upper 60s and low 70s F by the middle of the month, others it stays cold and wet throughout. What makes the gamble worth taking is the azaleas, which come out mid to late March and peak from the end of the month through the first two or three weeks of April - White Point Gardens and Hampton Park are the names they give. Two warnings travel with it. The garden festival pulls people from well outside the city, so downtown is busier than the tourist calendar suggests, and the tree pollen through March and early April gets described as sand-thick, the price of all the greenery. The record: 19.7C days, 12.7C nights, 5.7 precipitation days carrying 75.2mm, 9.1 hours of sun and a 21 kph wind.
マートルビーチのほかの月
Regulars are specific this month is a real transition, highs falling from near 80F early on to around 70F by the end, with the ocean itself cooling noticeably faster after the second week - early October named as the better window for anyone actually planning to swim. Our row backs that mild, still-pleasant read, 24.6C over 15.3C nights, with 110.9mm of rain across 6.1 days and humidity at 74 percent. Regulars are consistent this counts as genuinely perfect weather for strolling the beach even once swimsuit weather fades, crowds thinning fast and hotel deals improving as the month goes on. The sea sits at 21.8C, still comfortable for many earlier in the month. The record: 8.9 hours of sun, a 17 kph wind and AQI 42.
Regulars put the average air near 76F with water around 68F, both still on the cool side, and warn the month can swing day to day - 75 one afternoon, 55 the next. Our row backs that unsettled read, 22.5C reading as 22C over 12.9C nights, with 87.4mm of rain across 6.6 days and a genuine 20.2 kph wind. The sea sits at 19.5C, manageable for some by late April rather than truly warm, which is why regulars traveling with kids over spring break are pointed toward a hotel with a heated indoor pool as the reliable backup regardless of what the ocean is doing that day. Days are usually clear and sunny even when the water lags behind. The record: humidity 70 percent, 10.7 hours of sun and AQI 51.
Myrtle Beach-forum threads on January weather describe genuinely variable conditions - typical days sitting in the 50s Fahrenheit, but posters note it's entirely possible to catch a run of 70-degree afternoons on the warmest stretches, right alongside a cold snap on other days. Mornings run chilly regardless, but the afternoon warmth is often enough for a comfortable beach walk, outdoor dining, or a round of golf with just a light jacket. The ocean itself is called firmly off-limits for swimming, water temperatures cold enough that even wading isn't appealing. Regulars are consistent that the real trade-off this month isn't the weather but the town itself - a genuine share of restaurants and attractions close for the off-season, so the notably cheaper rates come paired with fewer open options compared to summer. The record: 13.7C days feeling like 12C, 4C nights, 82mm across 8.1 days, 2.4cm of rare snowfall, a 10.9C sea, 72 percent humidity and 7.2 hours of sun.
September is the month locals name alongside May: about 85F air and 77F water on their figures - our row says 28.5C and a 27.2C sea - with the crowds gone the moment Labor Day passes, no queues at the restaurants or the mini-golf, and accommodation prices down with them. The caveat is the calendar it shares with hurricane season, of which September is the peak. Regulars are measured about it: storms more often skirt the South Carolina coast for North Carolina, and one of them counts nine September trips with a single tropical storm that was not severe. Our row's 210mm across 8 precipitation days is the wettest total in this round, and that is what a tropical system looks like in a monthly normal. The record: 20.8C nights, humidity 79 percent and 9.8 hours of sun.
地図のマートルビーチのカードから自分のメモを追加できます。
マートルビーチの気候平年値 — 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月のマートルビーチの混雑
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Myrtle Beach Marathon、Can-Am Days、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
マートルビーチの天気が良い月
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)。
天気はまずまずマートルビーチの天気が最も良いのは5月、6月、9月です — ひと続きのシーズンではなく、別々の時期です。
天気が最高天気はまずまず天気が厳しい
3月のマートルビーチのイベント
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。
- 祭り
Myrtle Beach Marathon
2月25日〜3月12日 · 例年スポーツイベント混雑A flat oceanfront course on a Saturday in early March, with a half marathon alongside. Roads on the course close for the morning and oceanfront hotels fill with runners. 出典 ↗
- 祭り
Can-Am Days
3月10日〜25日 · 例年大きな祭り混雑Started in 1961 to lure Canadian families on their spring break, it still brings a wave of Ontario and Quebec plates for a week and a half of parades, concerts and resort deals. 出典 ↗
近くで開催中のイベント
マートルビーチから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。
マートルビーチはどこにある?
3月のマートルビーチ — よくある質問
- 3月はマートルビーチを訪れるのに良い時期ですか?
- マートルビーチの3月:快適、ときどき雨 — 訪れるのにとても良い時期。SeasonMapの快適スコアでは、マートルビーチの12か月中8位です(72/100)。
- 3月のマートルビーチはどんな天気ですか?
- 3月のマートルビーチは、平均最高気温19.2°C、最低気温9.3°C、降水量は約74.7 mmで、雨の日はおよそ7.3日です。
- 3月のマートルビーチの大気質はどうですか?
- 3月のマートルビーチの米国大気質指数(US AQI)は、平均約53です。
300 km圏内:CharlestonのAzalea and garden season(3月10日〜4月20日ごろ)、SavannahのAzaleas and spring bloom(3月10日〜4月15日ごろ)。