フェニックス 4月の天気
フェニックスの4月:暑い、雨が少ない — 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
フェニックスでは12か月中4位 · 4月に訪れたい旅行先で1413か所中434位 · 快適スコア84/100(Aランク)
- 日中
- 31°C
- 夜
- 17°C
- 雨の日
- 1
- 日照
- 12 h
- 湿度
- 21%
- 日の長さ
- 13 h

4月のフェニックスについての旅行者の声
April is the month regulars here call their favourite: cool mornings, warm days, and the spring-training crowd gone home, because that fills March and takes the hotel rates with it. Their figures are the mid-eighties by day and mid-fifties at night; ours run a little warmer at 31.4C over 17C, and the number that matters more is 21 percent humidity with a dew point of minus 1.6C - which is why a 31.4C afternoon reads as 29C and why the mornings are genuinely cold. Their day plan follows from it: hike at dawn, pool in the afternoon. Rain is 2.8mm in the whole month. The record: 12 hours of sun, a 15.9 kph wind and AQI 53.
フェニックスのほかの月
Regulars describe typically dry, sunny days in the 60s-70s Fahrenheit with genuinely chilly evenings, and note that resorts specifically run heated pools this time of year to make swimming a real option despite the season. Our row backs the mild-but-cool read, 20.5C reading as 18C over 8.5C nights feeling 5C, with rain minimal at 19mm across 2.7 days, and humidity down to a dry 52 percent. Regulars are candid that occasional cold spells can drop daytime highs into the 50s Fahrenheit with colder nights, and one long-time Scottsdale resident even reports snow showers three times in ten years around Christmas week - rare, but real. This remains genuinely one of the more popular months here, people specifically traveling in for the mild winter climate. The record: 8.2 hours of sun, an 11.6 kph wind and AQI 54.
Regulars call February here perfect hiking weather and give highs in the low seventies with overnight lows in the upper forties. Our row agrees almost exactly: 22C by day and 9.3C by night, with 19.2mm of rain across 2.9 days and 9.5 hours of sun. The gap between those two figures is the point - nearly thirteen degrees, on 44 percent humidity and a dew point below zero - so a trail that is pleasant at eight in the morning is cold, and the same trail at two is warm. The other reason to prefer February is the calendar: baseball spring training fills the valley through March, so this is the same weather with fewer people in it. The record: a 13.5 kph wind and AQI 50.
November is the month Phoenix becomes walkable again, and the forum's advice is nonetheless to hike early or late. Even in November the midday sun is hot enough to matter - some days still reach 80F - and the trails people name are up mountains, Camelback, South Mountain and the Phoenix Mountain Preserve, where there is no shade to speak of. North Mountain is the one they hand to anybody wanting easy or mid-range. The other half of the month is the evening: early November is very pleasant but a jacket comes out after dark, and the later in the month you go the chillier it gets. Our row's 26C day against a 12.9C night is that spread. The record: 1.4 precipitation days carrying 10.4mm, humidity 37 percent and 9.2 hours of sun.
Phoenix forum threads consistently rate January as one of the best months in the country weather-wise, with typical highs in the mid-60s Fahrenheit and lows in the low-40s, though posters noted a warm stretch pushing into the 70s or even near-record 80s isn't unheard of. Despite technically being part of the winter rainy season, actual rain was described as rare - usually under an inch total for the whole month, maybe 3-4 days with any measurable rain at all. The consistent advice was a light layer for cool mornings that peels off as temperatures climb fast through the day, with posters citing hiking conditions as close to ideal and a full calendar of January events including the Fiesta Bowl and various car shows.
地図のフェニックスのカードから自分のメモを追加できます。
フェニックスの気候平年値 — 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月のフェニックスの混雑
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。
ショルダーシーズン天気は平年並みの月(推定)
ピークの混雑混雑ショルダーシーズン閑散
フェニックスの天気が良い月
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)。
天気はまずまずフェニックスの天気が最も良いのは2月、3月、11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月のフェニックスのイベント
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
2月20日〜4月10日 · 例年野の花・花の見頃Poppies and lupine on the slopes north and east of the city in March, and the saguaro flower at the end of April. How much of it there is depends entirely on the winter rain.
- 季節
Desert hiking season
10月15日〜4月15日 · 例年トレイルシーズンCamelback, South Mountain and the Superstitions are only sensible between mid-October and mid-April, which is also when the resorts charge the most. Half the country's snowbirds are here for it.
近くで開催中のイベント
フェニックスから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。
フェニックスはどこにある?
4月のフェニックス — よくある質問
- 4月はフェニックスを訪れるのに良い時期ですか?
- フェニックスの4月:暑い、雨が少ない — 訪れるのに絶好の時期。SeasonMapの快適スコアでは、フェニックスの12か月中4位です(84/100)。
- 4月のフェニックスはどんな天気ですか?
- 4月のフェニックスは、平均最高気温31.4°C、最低気温17°C、降水量は約2.8 mmで、雨の日はおよそ0.6日です。
- 4月のフェニックスの大気質はどうですか?
- 4月のフェニックスの米国大気質指数(US AQI)は、平均約53です。
300 km圏内:SedonaのRed rock wildflowers(3月20日〜5月10日ごろ)、Grand Canyon National ParkのSpring break crowds(3月1日〜4月15日)。