シェムリアップ 4月の天気
シェムリアップの4月:猛暑、ときどき雨 — 午後41°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
シェムリアップでは12か月中8位 · 4月に訪れたい旅行先で1413か所中1275位 · 快適スコア58/100(Dランク)
- 日中
- 35°C
- 夜
- 25°C
- 雨の日
- 10
- 日照
- 11 h
- 湿度
- 67%
- 日の長さ
- 12 h

4月のシェムリアップについての旅行者の声
Siem Reap-forum threads asking if April is simply too hot don't sugarcoat it - one thread calls the month stinking hot, brain-bakingly hot, everything parched, brown and dusty, with daytime temperatures well into the 40s Celsius on the worst days. Regulars offer the same standing advice: start sightseeing at first light, retreat for a long midday siesta somewhere air-conditioned with a pool, then go back out in the late afternoon once the worst heat breaks. A tuk tuk ride is recommended over an enclosed car, since the breeze dries off sweat rather than trapping heat the way air conditioning does when you step back out. Khmer New Year lands in April too, and mango season is in full swing. The midday temples empty out fast as visitors retreat indoors. The record: a scorching 35.3C by day feeling like a punishing 41C, 25.4C nights, 74mm across 10 days, 67 percent humidity, an unhealthy 77 AQI and 11 hours of sun.
シェムリアップのほかの月
Regulars are direct that temperatures here are essentially guaranteed to top 35C this month, though generally less humid than the peak of July, with the standard workaround being an early start, a midday retreat to a pool and air conditioning, then heading back out again late in the afternoon. Our row backs that hot, genuinely dry read, 35C reading as a scorching 40C, over 24.3C nights feeling 28C, with rain light at 36.9mm across 6.4 days and humidity at 65 percent. Regulars are consistent some visitors do manage this month and even April despite the intensity, while others avoid it deliberately, the temples themselves offering little shade regardless of timing. Sun protection and a genuinely early start remain the standard advice throughout. The record: 11 hours of sun, a 13.1 kph wind and AQI 78.
Siem Reap-forum threads on November weather call it the downhill side of the wet season - locals treat November through January as their cold season, bundling up for the mornings until around 9:30 or 10am even though visitors mostly find it warm rather than cold. The standard itinerary follows that same schedule: Angkor tours start around 8am while it's still cool, wrapping up by midday once it gets too warm to keep walking. The monsoon is winding down but still unpredictable enough that a poncho is standard advice, with any downpour usually arriving in a concentrated morning or evening window rather than spread through the day. Posters call the November-to-mid-January stretch one of the best climate windows of the year, which is exactly why it's also peak season. The record: 31.5C days feeling like a sticky 37C, 23.6C nights, 98mm across 12.9 days, 79 percent humidity and 9.4 hours of sun.
February is the last comfortable month at Angkor. It is firmly inside the dry season - our row gives 15.5mm across 2.9 days - and the mornings are still among the year's coolest, which matters when the plan is a sunrise at the temples. What regulars warn about is the dust, because months without rain leave the roads and the causeways powdery, and about the direction of travel: February is where the temperature begins its climb towards 39 or 40C by April. Tonle Sap still has enough water for the boat trips in this month, which stops being true later. It is high season, so the temples are busy. The record: 32.8C days that feel like 36C, 21.9C nights, humidity 61 percent and 10.6 hours of sun.
December and January are the cool, settled months and the best of the Angkor year - mornings can drop to the low 20s C and the Christmas and New Year stretch is reliably clear - which is also why it is high season. The forum's crowd advice is specific and contrarian: sunrise at Angkor Wat means hundreds of people in place by 5am and is described as horrible if you dislike a crowd, while starting at about 7am puts you ahead of most of the day's traffic, and sunset is the genuinely quiet slot because everyone has gone elsewhere. Working the temple order with your driver matters more than the date. The record: 31.2C days that feel like 34C, 21.6C nights, 4.4 precipitation days, 9.6 hours of sun and AQI 38.
地図のシェムリアップのカードから自分のメモを追加できます。
シェムリアップの気候平年値 — 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月のシェムリアップの混雑
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Khmer New Year、Dry season、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
シェムリアップの天気が良い月
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)。
天気はまずまずシェムリアップの天気がピークを迎えるのは12月〜2月で、特に良いのは1月ごろです。
天気が最高天気はまずまず天気が厳しい
4月のシェムリアップのイベント
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
Khmer New Year
4月13日〜16日水かけ祭りの新年混雑休業Siem Reap is where the country comes for it: games on the temple lawns, water and talc in the streets, and the domestic crowd filling the Angkor ticket queue for three days. 出典 ↗
- 季節
Dry season
11月15日〜4月30日 · 例年混雑The temple roads are firm, sunrise at Angkor Wat is reliable and the town is full. From March the middle of the day at Angkor Thom is punishing and everyone is back by ten.
近くで開催中のイベント
シェムリアップから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。
シェムリアップはどこにある?
4月のシェムリアップ — よくある質問
- 4月はシェムリアップを訪れるのに良い時期ですか?
- シェムリアップの4月:猛暑、ときどき雨 — 午後41°Cの暑さがあり、運次第の時期。SeasonMapの快適スコアでは、シェムリアップの12か月中8位です(58/100)。
- 4月のシェムリアップはどんな天気ですか?
- 4月のシェムリアップは、平均最高気温35.3°C、最低気温25.4°C、降水量は約73.7 mmで、雨の日はおよそ10日です。
- 4月のシェムリアップの大気質はどうですか?
- 4月のシェムリアップの米国大気質指数(US AQI)は、平均約77です。
300 km圏内:Phnom PenhのKhmer New Year(4月13日〜16日)。