ルイビル 4月の天気
ルイビルの4月:快適、雨が多い、空気がきれい — 訪れるのに絶好の時期。
2026年9月更新 · ERA5再解析による気候平年値
ルイビルでは12か月中4位 · 4月に訪れたい旅行先で1413か所中572位 · 快適スコア81/100(Aランク)
- 日中
- 20°C
- 夜
- 8°C
- 雨の日
- 9
- 日照
- 9 h
- 湿度
- 69%
- 日の長さ
- 13 h

4月のルイビルについての旅行者の声
Kentucky forum threads are consistent that April weather here is genuinely unpredictable - one poster described swings from 70F one day to the mid-30s the next, and general advice is to pack layers since a single week can run anywhere from the 80s down to near-freezing mornings. Rain is a real possibility throughout the month, not concentrated in any one stretch. The payoff several regulars highlighted: rhododendrons, azaleas, dogwoods and wildflowers all coming into bloom makes April one of the prettiest windows to be outdoors here, swings and showers notwithstanding.
ルイビルのほかの月
Louisville-forum threads on the best time to visit are blunt that July belongs near the bottom of the list, one regular's standing advice being to skip the whole July-August stretch if dates are flexible at all - heat and humidity together push it into the genuinely uncomfortable range for a full day of walking around downtown or the bourbon trail. Posters consistently point toward October instead for the year's most reliable stretch, dry days and cool nights, though plenty concede July is entirely doable with the right pacing. The standing strategy repeated across threads is distillery tours and museums through the middle of the day, saving outdoor time - Waterfront Park, the river walk - for morning or evening when the air actually cools off. The record: 31.6C days feeling like a punishing 36C, 21.6C nights, 111mm across 8.3 days, 76 percent humidity and 11.7 hours of sun.
Forum posters describe March weather in Louisville and Kentucky more broadly as genuinely unpredictable, capable of delivering 75F and sunny one day and freezing rain the next within the same visit. Posters recommend preparing for chilly conditions, especially at night, alongside a real chance of occasional showers, and suggest checking forecasts close to the travel date rather than relying on the calendar alone. Posters do note that travelers chasing guaranteed warmth might look further south instead, to Georgia, Florida or South Carolina, and that October tends to draw more praise as a dry, pleasant Louisville shoulder-season pick than March does. Posters generally rate March as a mixed, changeable early-spring month for Louisville, layers and flexible plans the recommended approach.
Forum posters describe November in Louisville as cool to cold and genuinely variable, with highs typically in the 40s or 50sF but real swings possible - some days climbing into the 60s, others dropping into the 30s, and cloudy, sometimes rainy stretches common throughout the month. Posters are direct that snow and ice can arrive as early as mid-November in a given year and persist into the following spring depending on that winter's weather pattern. Posters consistently recommend checking a short-range forecast the day before any outdoor plans rather than trusting a longer-range prediction, given how much November conditions can shift. Posters generally suggest mid-to-late October or very early November as a safer bet than deeper into the month if avoiding a chance of snow matters for a trip.
Louisville forum regulars call October the payoff month after September's lingering heat: pleasant days and cool nights, usually dry, with clear, blue skies the norm and evenings pleasantly cool rather than the muggy holdover earlier in fall. One honest caveat regulars flag: an “Indian summer” can still show up, but “the humidity is gone, and it's generally chillier than people expect,” so a warmer layer is worth packing regardless of a warm-looking forecast. The month doubles as festival season — Keeneland's fall race meet begins, and Iroquois Park's Jack-o-Lantern Spectacular (5,000 carved pumpkins) runs through the evening hours. Our record: 20.9°C days, 11.3°C nights, 10.2 rain days and 61.9% humidity — mild and comfortably dry, matching the “best weather of the year” read the forum gives October specifically.
地図のルイビルのカードから自分のメモを追加できます。
ルイビルの気候平年値 — 4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。
4月のルイビルの混雑
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Kentucky Derby Festival、Kentucky Derby(推定)
ピークの混雑混雑ショルダーシーズン閑散
ルイビルの天気が良い月
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)。
天気はまずまずルイビル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
4月のルイビルのイベント
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
Kentucky Derby Festival
4月15日〜5月1日 · 例年大きな祭り混雑休業早めの予約をA fortnight of build-up before the race — Thunder Over Louisville's air show and fireworks over the Ohio, a steamboat race, a marathon and a balloon glow. Thunder alone puts several hundred thousand people on the waterfront for a day. 出典 ↗
- 祭り
Kentucky Derby
4月30日〜5月7日 · 例年スポーツイベント混雑早めの予約をThe first Saturday in May, and the whole city prices itself accordingly — hotel rates multiply and minimum stays appear months ahead. The infield is cheap and you will see no horses from it. 出典 ↗
近くで開催中のイベント
ルイビルから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。
ルイビルはどこにある?
4月のルイビル — よくある質問
- 4月はルイビルを訪れるのに良い時期ですか?
- ルイビルの4月:快適、雨が多い、空気がきれい — 訪れるのに絶好の時期。SeasonMapの快適スコアでは、ルイビルの12か月中4位です(81/100)。
- 4月のルイビルはどんな天気ですか?
- 4月のルイビルは、平均最高気温20°C、最低気温8.3°C、降水量は約121.6 mmで、雨の日はおよそ9.3日です。
- 4月のルイビルの大気質はどうですか?
- 4月のルイビルの米国大気質指数(US AQI)は、平均約41です。
300 km圏内:Mammoth Cave National ParkのSpring wildflowers(4月1日〜5月10日ごろ)、CincinnatiのFindlay Market Opening Day Parade(3月25日〜4月10日ごろ)。