化石の森国立公園 9月の天気
化石の森国立公園の9月:暖かい、雨が少ない、空気がきれい — 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
化石の森国立公園では12か月中6位 · 9月に訪れたい旅行先で1413か所中739位 · 快適スコア79/100(Bランク)
- 日中
- 30°C
- 夜
- 13°C
- 雨の日
- 4
- 日照
- 11.2 h
- 湿度
- 35%
- 日の長さ
- 12 h

9月の化石の森国立公園についての旅行者の声
Petrified Forest-forum threads on summer conditions describe the desert terrain as genuinely demanding through the peak months, a full water supply called essential regardless of how short the planned stop looks. Posters are consistent the afternoon storm season, running roughly July through early September, can bring dramatic skies over the Painted Desert along with real lightning risk on exposed overlooks, worth checking a forecast before lingering outdoors. Regulars call the pattern easing noticeably by September, cooler, more settled conditions replacing the harsher midsummer intensity. Blue Mesa and Newspaper Rock are both named standout stops regardless of season, the full park drive taking a comfortable two to three hours. Posters recommend an early start even in September, given how exposed most overlooks and short trails run. The record: a scorching 30.2C by day feeling like a punishing 33C, 12.5C nights, a low 35 percent humidity and 10.9 hours of sun.
化石の森国立公園のほかの月
Petrified Forest-forum threads on a January visit describe closures as a genuine risk, one visitor planning a late-January trip finding the park actually closed due to icy roads. Regulars call snow genuinely not guaranteed in northern and central Arizona in January, several posters naming it a real possibility rather than a certainty. Posters call driving genuinely discouraged once roads turn snowy, several regulars naming this standard advice given how quickly conditions can shift here. Regulars call touring the park a real half-day commitment, several threads naming roughly four hours as typical for seeing the main sights. Posters recommend calling ahead before a January trip regardless of the forecast, several regulars calling this standard given how a single storm can close the park entirely. The record: 9.7C days, -4.9C nights, 17.1mm across nearly 4 days and 59 percent humidity.
Petrified Forest-forum threads on a February visit describe conditions as genuinely cold, posters calling a strong north or northwest wind capable of making an otherwise bright, sunny day feel miserable. Regulars call accumulation possible though not a major February factor, real caution still worth exercising given how fast conditions can shift. Posters recommend checking the forecast closely before setting out, several regulars describing this as standard practice for a February trip through the park. Regulars call the route through Globe and Salt River Canyon genuinely scenic for anyone approaching from that direction, though winter weather here can affect the drive. Posters recommend real layers regardless of how the morning looks, wind chill considered the real factor rather than the air temperature alone. The record: 13.3C days feeling like 12C, -3.1C nights, 16mm across over 2 days and 41 percent humidity.
Petrified Forest-forum threads on a mid-June visit describe two to three hours as genuinely enough for the main scenic drive and a few short walks, posters calling a full day only necessary for anyone wanting longer hikes like the Jasper Forest route. Regulars call the park a manageable add-on to a wider Southwest road trip, easy to combine with a same-day departure from somewhere like Mesa Verde. Posters describe June as running hot and exposed, real sun protection and water essential regardless of how short the visit. Regulars recommend an early start if any longer trails are on the itinerary, midday heat building fast with almost no natural shade anywhere. Posters call the Painted Desert section worth the detour, the colors more vivid in the softer morning or evening light. Regulars call checking visitor center hours worthwhile before planning arrival time. The record: 33.5C days feeling like 30C, 13.6C nights, a scant 1.3 days of measurable precipitation and 20 percent humidity.
Petrified Forest-forum threads asking about current conditions describe this semi-arid grassland park as capable of real temperature extremes, though by November posters call the air genuinely crisp and clean, comfortable in the forties and fifties Fahrenheit for a full day outside. Regulars describe winter as a real advantage for anyone avoiding crowds, virtually no lines and the same striking Painted Desert views without the summer heat. Posters call a light dusting possible at this elevation given the right system, though nothing like the accumulation a true mountain destination sees. Regulars recommend checking a current forecast before the trip given how variable conditions run. Posters call the petrified wood and painted badlands worth the visit regardless of exact temperature. Regulars recommend real layers for the sharp morning-to-afternoon swing typical of high desert. The record: 16.4C days feeling like 11C, -0.3C nights, a low 46 percent humidity and 9 hours of sun.
地図の化石の森国立公園のカードから自分のメモを追加できます。
化石の森国立公園の気候平年値 — 9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。
9月の化石の森国立公園の混雑
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。
混雑アメリカ合衆国のSummer break(推定)
ピークの混雑混雑ショルダーシーズン閑散
化石の森国立公園の天気が良い月
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)。
天気はまずまず化石の森国立公園の天気が最も良いのは4月、5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
9月の化石の森国立公園のイベント
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。
- ルール
The gates lock at five
1月1日〜12月31日休業The park road is open 8am to 5pm and the gates are locked outside those hours, so sunrise and sunset in the Painted Desert need a free wilderness permit and a walk in. Arizona keeps Mountain Standard Time all year. 出典 ↗
- 自然
Dark-sky nights
4月1日〜9月30日 · 例年星空シーズンOne of the darker certified parks in the southwest, and the only way to use it is a free overnight permit into the Painted Desert wilderness, since the road gate closes at five. The park runs occasional star parties. 出典 ↗
- 要注意
Monsoon thunderstorms
7月1日〜9月15日 · 例年嵐のシーズンAfternoon storms build fast over the plateau from July, and the badlands offer no shelter from lightning on the trails at Blue Mesa or the Wilderness. The clay turns to grease within minutes of a downpour. 出典 ↗
近くで開催中のイベント
化石の森国立公園から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。
化石の森国立公園はどこにある?
9月の化石の森国立公園 — よくある質問
- 9月は化石の森国立公園を訪れるのに良い時期ですか?
- 化石の森国立公園の9月:暖かい、雨が少ない、空気がきれい — 訪れるのにとても良い時期。SeasonMapの快適スコアでは、化石の森国立公園の12か月中6位です(79/100)。
- 9月の化石の森国立公園はどんな天気ですか?
- 9月の化石の森国立公園は、平均最高気温30.2°C、最低気温12.5°C、降水量は約21.6 mmで、雨の日はおよそ3.9日です。
- 9月の化石の森国立公園の大気質はどうですか?
- 9月の化石の森国立公園の米国大気質指数(US AQI)は、平均約38です。
300 km圏内:SedonaのDark-sky season(9月15日〜11月20日ごろ)、Mesa Verde National ParkのCliff dwelling tour season(5月1日〜10月20日ごろ)。