プエルト・イグアス 1月の天気
プエルト・イグアスの1月:猛暑、雨が多い、空気がきれい — 午後39°Cの暑さがあり、運次第の時期。
2026年9月更新 · ERA5再解析による気候平年値
プエルト・イグアスでは12か月中12位 · 1月に訪れたい旅行先で1413か所中1143位 · 快適スコア50/100(Dランク)
- 日中
- 33°C
- 夜
- 22°C
- 雨の日
- 15
- 日照
- 10.9 h
- 湿度
- 77%
- 日の長さ
- 14 h

1月のプエルト・イグアスについての旅行者の声
Puerto Iguazú's forum is upfront that January is hot, humid, and rainy season - roughly a one-in-three chance of rain on any given day, though posters were clear it doesn't mean rain all day. The genuine upside several regulars pointed to: the falls run at peak water volume this time of year, and an afternoon shower followed by sun tends to produce spectacular rainbows across the 275 individual falls. Boat tour operators hand out dry bags as standard practice, and forum consensus was that the heat and rain risk shouldn't be a reason to skip a January visit.
プエルト・イグアスのほかの月
Puerto Iguazu-forum threads on a June visit describe conditions as genuinely fine, posters calling it a little on the cold side but still nice, with a range roughly between thirteen and twenty-two degrees. Regulars call June through August genuinely the coolest, driest stretch of the year here, several posters naming this the reason conditions feel noticeably different from the humid peak season. Posters call water levels a real concern in June specifically, several regulars warning lower flow can make the falls less dramatic than wetter months. Regulars call fewer crowds and comfortable hiking real upsides of a June visit, several threads naming this a fair tradeoff against reduced water volume. Posters recommend checking recent water-level reports if seeing the falls at full force matters most, several regulars calling this standard given how much flow varies. The record: 23.7C days, 13.2C nights, 120.5mm across nearly 9 days and 81 percent humidity.
Puerto Iguazu-forum threads on an early September visit describe water levels as a genuine question mark this time of year, posters comparing conditions against summer footage to gauge whether boat rides under the falls would still be running strong. Regulars call crowds noticeably lighter in early September compared with peak season, a real advantage for anyone prioritizing space at the main viewpoints. Posters recommend two full days as a solid September stay, enough time to properly cover both the Argentine and Brazilian sides of the falls. Regulars call combining a night in Puerto Iguazu with one across the border in Foz do Iguacu a real option, several posters describing exactly this split-stay approach. Posters recommend booking border-crossing transport ahead regardless of exact dates, logistics here considered smoother with a plan in place. The record: 29.5C days feeling like 32C, 16.3C nights, an extraordinarily high 92.2mm across over 8 days and 74 percent humidity.
Puerto Iguazu-forum threads on trip planning for a March visit describe this as still squarely within the wetter season, posters calling afternoon showers a real possibility most days though rarely enough to derail a full day at the falls. Regulars call the water genuinely powerful this time of year, upstream rainfall keeping volume high across the roughly 275 individual falls in the complex. Regulars recommend the boat ride from the Argentine side for anyone wanting to get properly soaked, a dry change of clothes standing advice. Posters describe mosquito activity as a real concern some years, repellent worth packing regardless of any single forecast. Regulars call the Devil's Throat viewpoint genuinely spectacular with this much water moving through it. Posters recommend a full day for the Argentine side alone given how much trail there is. The record: 31.9C days feeling like a punishing 37C, 20.6C nights, 122.3mm across nearly 12 days and 77 percent humidity.
Puerto Iguazu-forum threads on February conditions are consistent this sits deep within the region's hot, sticky stretch, posters calling humidity itself as much a factor as the raw temperature reading. Regulars describe sun and a sudden downpour as both entirely possible within the same afternoon, the subtropical pattern here shifting fast regardless of forecast. Posters recommend real waterproof gear, a shower able to roll through the walkways with little warning. Regulars call water flow generally strong this time of year, though a heavier system can leave it visibly muddier from red clay soils upstream. Posters recommend March through May for milder, less humid conditions if flexible, February still workable for lush, green surroundings. Regulars call the falls worth the heat and humidity regardless of exact month. The record: 33.1C days feeling like a punishing 38C, 21.4C nights, an extraordinarily high 115.5mm across nearly 12 days and 76 percent humidity.
地図のプエルト・イグアスのカードから自分のメモを追加できます。
プエルト・イグアスの気候平年値 — 1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。
1月のプエルト・イグアスの混雑
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。
ピークの混雑Argentine summer holidays、アルゼンチンのSummer holidays、主な訪問国のうち3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
プエルト・イグアスの天気が良い月
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)。
天気が厳しいプエルト・イグアス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。
1月はGarganta walkway shut in floodと重なります。
天気が最高天気はまずまず天気が厳しい
1月のプエルト・イグアスのイベント
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。
- ルール
Timed park tickets, bought online
1月1日〜12月31日早めの予約をThe Argentine side sells a dated, time-slotted ticket online and the park asks you to turn up in your slot. Buying at the gate on a holiday weekend is how people end up losing a morning. 出典 ↗
- オープン
Full moon walk to the Garganta
1月1日〜12月31日星空シーズン早めの予約をThe park runs a night train and walkway trip to the Devil's Throat only on the nights around each full moon, sold separately and months ahead. It is called off when the river runs too high. 出典 ↗
- 祝日
Argentine summer holidays
1月1日〜2月15日学校休暇混雑早めの予約をJanuary is the domestic peak and the walkways move at the pace of the slowest group on them. First train of the day to the Garganta, or wait until three, are the two ways round it. 出典 ↗
- 休業
Garganta walkway shut in flood
11月1日〜4月30日 · 例年リスクSummer rain upriver can put the Iguazu over the catwalk to the Devil's Throat balcony, and the circuit shuts until the flow drops. It has stayed shut for weeks after the worst of them. 出典 ↗
近くで開催中のイベント
プエルト・イグアスから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。
プエルト・イグアスはどこにある?
1月のプエルト・イグアス — よくある質問
- 1月はプエルト・イグアスを訪れるのに良い時期ですか?
- プエルト・イグアスの1月:猛暑、雨が多い、空気がきれい — 午後39°Cの暑さがあり、運次第の時期。SeasonMapの快適スコアでは、プエルト・イグアスの12か月中12位です(50/100)。
- 1月のプエルト・イグアスはどんな天気ですか?
- 1月のプエルト・イグアスは、平均最高気温33.2°C、最低気温22°C、降水量は約145.4 mmで、雨の日はおよそ15.4日です。
- 1月のプエルト・イグアスの大気質はどうですか?
- 1月のプエルト・イグアスの米国大気質指数(US AQI)は、平均約28です。
300 km圏内:Foz do IguaçuのFalls at their fullest(11月1日〜3月31日ごろ)。