シンシナティ 3月の天気
シンシナティの3月:涼しい、雨が多い、空気がきれい — 訪れるのに良い時期。
2026年9月更新 · ERA5再解析による気候平年値
シンシナティでは12か月中8位 · 3月に訪れたい旅行先で1413か所中1077位 · 快適スコア66/100(Cランク)
- 日中
- 13°C
- 夜
- 1°C
- 雨の日
- 9
- 日照
- 7.6 h
- 湿度
- 64%
- 日の長さ
- 12 h

3月のシンシナティについての旅行者の声
Cincinnati forum regulars call March genuinely unpredictable, day to day: “end of March weather is wildly unpredictable — it could have snow, sleet, freezing rain, or warmer, nicer days, with rain being a high probability.” The month sits squarely in a longer wet stretch too — spring tends to be rainy until the end of June. Average readings hover “around 44°F with approximately 10 days of rain,” but regulars are explicit the average hides real day-to-day swings that a single forecast can't capture more than a few days out. Standard advice: a padded jacket, real layers, hat, scarf and genuinely waterproof gloves rather than fashion gloves. Our record: 13.2°C days, 2.3°C nights, 12.2 rain days and 2.2cm of snow — cool and wet, matching the “wildly unpredictable, prepare for anything” read.
シンシナティのほかの月
Regulars share a local saying that sums up planning here: if you don't like the weather, wait 15 minutes and it's sure to change - advice regulars apply to this month as much as any other, packing for both a sudden downpour and a stretch of sticky heat within the same trip. Our row backs the hot, humid read, 29.1C reading as a hot 32C, over 16.9C nights, with 88.1mm of rain across 8.2 days and humidity at 72 percent. Regulars are consistent that a quick-drying layer beats a heavy raincoat, since storms here tend to blow through fast rather than settle in for the day. The record: 11.3 hours of sun, a 12.1 kph wind and AQI 61.
Regulars describe spring rain typically holding on into this month before a drier stretch sets in through the rest of summer, with a well-worn local saying that if you don't like the weather, wait fifteen minutes and it's sure to change. Our row backs the transitional, still-wet read, 28.1C reading as a real 30C, over 15.1C nights, with 102.3mm of rain across 8.9 days. Regulars pushing later into late June and early July are more confident calling it hot and humid outright, so this month sits at the hinge between changeable spring and settled summer heat rather than fully inside either. The record: humidity 70 percent, 11.5 hours of sun, a 14.5 kph wind and AQI 67.
Regulars rate October as one of the drier and milder months here - our row backs it at 66.2mm across 7.7 days - while quoting the local line that if you do not like the weather you should wait fifteen minutes. What that means in practice is layers, with a light sweater for the mornings and evenings: 20.3C days fall to 6.9C nights that feel like 5C. The colour follows the cold, starting around the third week of the month as the overnight temperatures drop, so the back half is the scenic half. The record: humidity 68 percent, 8 hours of sun, a 15.8 kph wind and AQI 35.
A lifelong Cincinnatian's advice for May is to be prepared for all kinds of weather at all times, and the local saying they quote is that if you do not like the weather, wait fifteen minutes. The spread they describe is real: the 70s Fahrenheit and sunny is about as likely as the 40s or 50s and raining, with the average around 21C by day and 10C at night on the 1st. Our row's 23.6C over 10.8C is the month's middle, and the wet half of their prediction is the part the figures back hardest - 119.7mm across 11.8 precipitation days, because spring here stays rainy until the end of June and only then dries out. A medium jacket, heavier than a windbreaker, is what they pack. The record: humidity 73 percent, 9.7 hours of sun and AQI 51.
地図のシンシナティのカードから自分のメモを追加できます。
シンシナティの気候平年値 — 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月のシンシナティの混雑
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Findlay Market Opening Day Parade、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
シンシナティの天気が良い月
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)。
天気はまずまずシンシナティの天気が最も良いのは5月、9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。
天気が最高天気はまずまず天気が厳しい
3月のシンシナティのイベント
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。
- 要注意
Ohio River flood season
2月1日〜4月15日 · 例年休業Late winter rain on frozen ground puts the river over its banks most years, and the low riverfront roads and Sawyer Point paths go under first. It recedes in days, but the Kentucky side approaches close while it lasts. 出典 ↗
- 祭り
Findlay Market Opening Day Parade
3月25日〜4月10日 · 例年スポーツイベント混雑休業The Reds have opened the season at home since 1876 and the city treats the first game as a public holiday, with a parade from Findlay Market into downtown. Schools empty and the bars are full by ten in the morning. 出典 ↗
近くで開催中のイベント
シンシナティから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。
シンシナティはどこにある?
3月のシンシナティ — よくある質問
- 3月はシンシナティを訪れるのに良い時期ですか?
- シンシナティの3月:涼しい、雨が多い、空気がきれい — 訪れるのに良い時期。SeasonMapの快適スコアでは、シンシナティの12か月中8位です(66/100)。
- 3月のシンシナティはどんな天気ですか?
- 3月のシンシナティは、平均最高気温13°C、最低気温0.5°C、降水量は約105.2 mmで、雨の日はおよそ9日です。
- 3月のシンシナティの大気質はどうですか?
- 3月のシンシナティの米国大気質指数(US AQI)は、平均約39です。
- 3月のシンシナティは雪が降りますか?
- 3月のシンシナティの降雪量は、およそ2.6 cmです。
300 km圏内:IndianapolisのSt. Patrick's Day Parade(3月13日〜14日)、ColumbusのArnold Sports Festival(2月26日〜3月10日ごろ)。