ニューポート 8月の天気
ニューポートの8月:暑い、ときどき雨、蒸し暑い — 一年で最も訪れやすい月のひとつ。
2026年9月更新 · ERA5再解析による気候平年値
ニューポートでは12か月中2位 · 8月に訪れたい旅行先で1413か所中430位 · 快適スコア86/100(Aランク)
- 日中
- 27°C
- 夜
- 18°C
- 雨の日
- 6
- 日照
- 10.7 h
- 湿度
- 80%
- 日の長さ
- 14 h

8月のニューポートについての旅行者の声
Mid-August is peak Newport and the forum does not pretend otherwise: heavy traffic in and around town, the Jazz and Folk festivals pulling crowds, and parking - not people - the thing regulars say actually spoils a day, with lots charging up to twenty dollars. The weather is the classic New England August: 80s F and humid. What August is genuinely good for is the water, either the beaches or a sail, which is most of why anyone comes. The standing alternative regulars offer is May or September, when it is neither as humid nor as full. The record: 26.8C days that feel like 30C, 18.4C nights, 6 precipitation days, humidity near 80 percent, a 20C sea and 10.7 hours of sun.
ニューポートのほかの月
Regulars are specific that the ocean's cooling effect keeps this month genuinely cool here, frost still possible right up until Mother's Day in some years despite the calendar saying late spring. Our row backs that cool, still-changeable read, 18.3C over 9.4C nights feeling 7C, with 86.6mm of rain across 7.3 days and a real 20 kph wind. Regulars are consistent this counts as a genuinely good time to visit regardless, summer's tourist crush still weeks away and the Cliff Walk and mansions comfortable to explore without the heat. Layers covering a real range from cold mornings to milder afternoons remain the standard packing advice. The sea sits at a cold 12.2C, firmly too cold for casual swimming this early. The record: humidity 78 percent, 9.9 hours of sun and AQI 41.
Regulars describe the ocean's effect running in reverse from summer this month, keeping this coastal city noticeably milder than inland areas rather than cooler - almost summer-like warmth without summer's crowds or heat waves. Our row backs the mild read, 23.1C over 14.8C nights, with 81.5mm of rain across 6.5 days. Regulars note the season here doesn't officially wind down until Columbus Day weekend in October, so the town stays genuinely lively on weekdays as well as weekends through this month, with the International Boat Show adding a real, date-specific spike in both crowds and lodging prices. The sea sits at 19.6C. The record: humidity 79 percent, 8.6 hours of sun, an 18.7 kph wind and AQI 39.
Newport-forum threads on the best time to visit repeatedly single out October, describing it alongside September as one of the year's most reliable stretches - minimal rain, crisp blue skies, and daytime temperatures that can still touch the 70s Fahrenheit in the first half of the month before settling into the 50s later on. Fall foliage peaks specifically in the last two to three weeks of October, timed well for anyone building a trip around the Cliff Walk or the historic mansions with color in the trees behind them. Regulars note the swimming season is fully over by this point, no lifeguards on the beaches past the first week of September, so October here is a scenery-and-sightseeing month rather than a beach one. Crowds thin out noticeably from the summer peak, making popular spots like the Cliff Walk and downtown waterfront genuinely walkable again. The record: 18.1C days feeling like 17C, 9.7C nights, 101mm across 8.7 days, a 16.9C sea, 76 percent humidity and 7.5 hours of sun.
June in Newport is lovely and the crowd advice is unusually specific: come mid-to-late June on a weekday, because weddings are now such a large part of the town that weekends fill regardless of the season. Fog is the other June variable - one June trip report has the ferry cancelled for it, and a foggy morning on the Cliff Walk with the views still worth having - which our row hints at with 80 percent humidity under a 23.6C day. The sea is still cold at 16.4C. So: the mansions and the Cliff Walk in the week, and a plan that survives a grey morning. The record: 14.6C nights, 5.7 precipitation days carrying 53mm, 11.2 hours of sun and an 18.6 kph wind.
地図のニューポートのカードから自分のメモを追加できます。
ニューポートの気候平年値 — 8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。
8月のニューポートの混雑
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Summer season、アメリカ合衆国のSummer break、主な訪問国のうち2か国で学校休暇(推定)
ピークの混雑混雑ショルダーシーズン閑散
ニューポートの天気が良い月
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)。
天気が最高ニューポートの天気がピークを迎えるのは6月〜8月で、特に良いのは7月ごろです。
8月にはNewport Jazz Festivalがあります。
天気が最高天気はまずまず天気が厳しい
8月のニューポートのイベント
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。
- 季節
Summer season
6月20日〜9月7日学校休暇混雑早めの予約をA town of twenty-five thousand taking several million visitors a year, most of them in ten weeks. Thames Street, the Cliff Walk and the mansion car parks are all at capacity by eleven, and nothing takes walk-ins.
- 祭り
Newport Jazz Festival
7月31日〜8月2日音楽祭早めの予約をThe week after Folk, on the same fort lawn, and the oldest festival of its kind anywhere. Two big weekends back to back is why late July is the most expensive fortnight on the island. 出典 ↗
近くで開催中のイベント
ニューポートから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。
ニューポートはどこにある?
8月のニューポート — よくある質問
- 8月はニューポートを訪れるのに良い時期ですか?
- ニューポートの8月:暑い、ときどき雨、蒸し暑い — 一年で最も訪れやすい月のひとつ。SeasonMapの快適スコアでは、ニューポートの12か月中2位です(86/100)。
- 8月のニューポートはどんな天気ですか?
- 8月のニューポートは、平均最高気温26.8°C、最低気温18.4°C、降水量は約66.4 mmで、雨の日はおよそ6日です。
- 8月のニューポートの大気質はどうですか?
- 8月のニューポートの米国大気質指数(US AQI)は、平均約52です。
300 km圏内:BostonのWhales on Stellwagen Bank(4月15日〜10月20日ごろ)、NantucketのSea warm enough to swim(7月15日〜9月20日ごろ)。