{"id":5618,"date":"2026-09-23T09:58:19","date_gmt":"2026-09-23T09:58:19","guid":{"rendered":"https:\/\/vietnamorigin.com\/hanoi-weather-guide\/"},"modified":"2026-10-28T08:15:44","modified_gmt":"2026-10-28T08:15:44","slug":"hanoi-weather-guide","status":"publish","type":"post","link":"https:\/\/vietnamorigin.com\/ja\/hanoi-weather-guide\/","title":{"rendered":"\u30cf\u30ce\u30a4\u306e\u5929\u6c17\u30fb\u6c17\u5019 2026\uff1a\u30d9\u30b9\u30c8\u30b7\u30fc\u30ba\u30f3\u3068\u6301\u3061\u7269"},"content":{"rendered":"<p><strong>Quick Summary:<\/strong> Hanoi weather has four clear seasons, and the best time to visit is October to November, with 22.1\u201324.8\u00b0C and 9\u201313 rain days a month. Summer (May to September) is hot and wet at 27.4\u201329.6\u00b0C, while winter is cool and grey at 17.3\u201318.3\u00b0C.<\/p>\n<p>Hanoi sits on the flat Red River Delta, so cool winter air and hot, wet summer air both roll in with little to stop them. That is why the same city can feel like a damp, cool autumn in January and a steam bath in July.<\/p>\n<p><img width=\"1024\" height=\"683\" src=\"http:\/\/vietnamorigin.com\/wp-content\/uploads\/2026\/09\/morning-sunlight-through-trees-on-a-street-in-hoan-kiem-hanoi-1024x683.webp\" class=\"attachment-large size-large\" alt=\"Morning sunlight through trees on a street in Hoan Kiem, Hanoi\" loading=\"lazy\" decoding=\"async\" srcset=\"http:\/\/vietnamorigin.com\/wp-content\/uploads\/2026\/09\/morning-sunlight-through-trees-on-a-street-in-hoan-kiem-hanoi-1024x683.webp 1024w, http:\/\/vietnamorigin.com\/wp-content\/uploads\/2026\/09\/morning-sunlight-through-trees-on-a-street-in-hoan-kiem-hanoi-300x200.webp 300w, http:\/\/vietnamorigin.com\/wp-content\/uploads\/2026\/09\/morning-sunlight-through-trees-on-a-street-in-hoan-kiem-hanoi-768x512.webp 768w, http:\/\/vietnamorigin.com\/wp-content\/uploads\/2026\/09\/morning-sunlight-through-trees-on-a-street-in-hoan-kiem-hanoi-1536x1024.webp 1536w, http:\/\/vietnamorigin.com\/wp-content\/uploads\/2026\/09\/morning-sunlight-through-trees-on-a-street-in-hoan-kiem-hanoi-480x320.webp 480w, http:\/\/vietnamorigin.com\/wp-content\/uploads\/2026\/09\/morning-sunlight-through-trees-on-a-street-in-hoan-kiem-hanoi.webp 1600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<h2>Hanoi Weather at a Glance<\/h2>\n<ul>\n<li><strong>Best months:<\/strong> October and November (22.1\u201324.8\u00b0C, 9\u201313 rain days a month).<\/li>\n<li><strong>Average temperature:<\/strong> from 17.3\u00b0C in January to 29.6\u00b0C in June.<\/li>\n<li><strong>Wet season:<\/strong> May to September, with 18\u201324 rain days a month. August is the wettest month (24 rain days).<\/li>\n<li><strong>Cool season:<\/strong> December to February, 17.3\u201318.3\u00b0C, with grey skies and light drizzle.<\/li>\n<\/ul>\n<h2>Best Time to Visit Hanoi<\/h2>\n<p>October and November are the sweet spot for Hanoi weather. Temperatures are 22.1\u201324.8\u00b0C, rain days fall to 9\u201313 a month, and the air feels less sticky. In these months the milk flower trees (hoa s\u1eefa) also scent the streets around the Old Quarter.<\/p>\n<p>December is a good backup. It is the driest month of the year with only 7 rain days, but it is cool at 17.9\u00b0C on average. March and April are pleasant (21.7\u201324.8\u00b0C), though you should expect 12 rain days a month and light drizzle. Avoid July to September if you dislike heat and heavy rain: August alone has 24 rain days.<\/p>\n<h2>Hanoi Weather by Season<\/h2>\n<ul>\n<li><strong>Winter (December\u2013February):<\/strong> 17.3\u201318.3\u00b0C, 7\u201310 rain days a month. Cool, damp and often overcast.<\/li>\n<li><strong>Spring (March\u2013April):<\/strong> 21.7\u201324.8\u00b0C, 12 rain days a month. Warmer days with light drizzle.<\/li>\n<li><strong>Summer (May\u2013September):<\/strong> 27.4\u201329.6\u00b0C, 18\u201324 rain days a month. Hot, humid, with heavy afternoon showers.<\/li>\n<li><strong>Autumn (October\u2013November):<\/strong> 22.1\u201324.8\u00b0C, 9\u201313 rain days a month. The most comfortable season, with clearer skies.<\/li>\n<\/ul>\n<p>For long-term charts and hot and cool season dates, see the <a href=\"https:\/\/weatherspark.com\/y\/116009\/Average-Weather-in-Hanoi-Vietnam-Year-Round\" target=\"_blank\" rel=\"noopener\">WeatherSpark climate data for Hanoi<\/a>.<\/p>\n<h2>Daily Weather &amp; Humidity Insights<\/h2>\n<ul>\n<li><strong>Humidity:<\/strong> it stays high all year, often around 80% in winter, so summer heat feels even stronger than the number on the thermometer.<\/li>\n<li><strong>Day and night gap:<\/strong> in January, days are around 20\u00b0C and nights near 14\u00b0C. In June, highs reach about 33\u00b0C and nights stay near 26\u00b0C.<\/li>\n<li><strong>Winter feel:<\/strong> the cold is damp rather than freezing, and some older buildings have no heating, so a 14\u00b0C night can feel colder indoors.<\/li>\n<li><strong>Summer storms:<\/strong> short, heavy showers can flood low streets for an hour or two.<\/li>\n<\/ul>\n<h2>What to Wear and Pack<\/h2>\n<ul>\n<li><strong>December to February:<\/strong> a light jacket, a scarf and layers you can add or remove.<\/li>\n<li><strong>May to September:<\/strong> breathable cotton or linen, a sun hat, sunscreen and a compact umbrella.<\/li>\n<li><strong>October\u2013November and March\u2013April:<\/strong> light layers and one thin jacket for the evenings.<\/li>\n<li><strong>Shoes:<\/strong> comfortable walking shoes with grip, because wet pavements get slippery.<\/li>\n<\/ul>\n<h2>Essential Local Tips<\/h2>\n<ul>\n<li><strong>Beat the heat and the crowds:<\/strong> walk the Old Quarter and Hoan Kiem Lake between 6 and 8 am. In summer, plan museums and caf\u00e9s for 12 to 3 pm.<\/li>\n<li><strong>Watch for typhoons and floods:<\/strong> the risk is highest from July to October. Heavy rain can flood streets and delay day trips to Ha Long Bay or Ninh Binh, so keep a flexible plan.<\/li>\n<li><strong>Chase the seasons:<\/strong> October and November bring the scent of milk flowers and soft light on West Lake, which makes them great for slow walks and photos.<\/li>\n<\/ul>\n<p>Ready to plan the rest of your trip? See more things to do in our <a href=\"https:\/\/vietnamorigin.com\/ja\/ha-noi\/\">full Hanoi travel guide<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Quick Summary: Hanoi weather has four clear seasons, and the best time to visit is October to November, with 22.1\u201324.8\u00b0C and 9\u201313 rain days a month. Summer (May to September) is hot and wet at 27.4\u201329.6\u00b0C, while winter is cool and grey at 17.3\u201318.3\u00b0C. Hanoi sits on the flat Red River Delta, so cool winter [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":8438,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[122],"tags":[],"article-type":[182],"region":[],"class_list":["post-5618","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ha-noi","article-type-weather-guide"],"acf":[],"_links":{"self":[{"href":"https:\/\/vietnamorigin.com\/ja\/wp-json\/wp\/v2\/posts\/5618","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vietnamorigin.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vietnamorigin.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vietnamorigin.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/vietnamorigin.com\/ja\/wp-json\/wp\/v2\/comments?post=5618"}],"version-history":[{"count":2,"href":"https:\/\/vietnamorigin.com\/ja\/wp-json\/wp\/v2\/posts\/5618\/revisions"}],"predecessor-version":[{"id":8439,"href":"https:\/\/vietnamorigin.com\/ja\/wp-json\/wp\/v2\/posts\/5618\/revisions\/8439"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vietnamorigin.com\/ja\/wp-json\/wp\/v2\/media\/8438"}],"wp:attachment":[{"href":"https:\/\/vietnamorigin.com\/ja\/wp-json\/wp\/v2\/media?parent=5618"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vietnamorigin.com\/ja\/wp-json\/wp\/v2\/categories?post=5618"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vietnamorigin.com\/ja\/wp-json\/wp\/v2\/tags?post=5618"},{"taxonomy":"article-type","embeddable":true,"href":"https:\/\/vietnamorigin.com\/ja\/wp-json\/wp\/v2\/article-type?post=5618"},{"taxonomy":"region","embeddable":true,"href":"https:\/\/vietnamorigin.com\/ja\/wp-json\/wp\/v2\/region?post=5618"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}