{"id":6062,"date":"2026-08-28T16:12:25","date_gmt":"2026-08-28T07:12:25","guid":{"rendered":"https:\/\/en.gogo-tour.com\/info\/?p=6062"},"modified":"2026-08-28T16:13:57","modified_gmt":"2026-08-28T07:13:57","slug":"osaka-december-weather","status":"publish","type":"post","link":"https:\/\/en.gogo-tour.com\/info\/osaka-december-weather\/","title":{"rendered":"Osaka Weather in December: Late Autumn to Early Winter, Plus 4 km of Lights"},"content":{"rendered":"

Osaka Weather in December \u2014 Late Autumn Until Roughly the 10th, Then Real Winter Arrives<\/span><\/h2>\n

Short answer: December in Osaka is two seasons in one month.<\/strong> The first ten days feel like the tail end of autumn, with daytime highs around 13-15\u00b0C (55-59\u00b0F). The last ten days are actual early winter, with morning lows near freezing. In between sits the world’s longest illumination road and Osaka’s Christmas markets.<\/p>\n

If you plan to bounce around Kansai on your own schedule, a Kansai rental car (Osaka, Kyoto, Hyogo)<\/a> becomes especially useful in December, because it lets you chain evening illumination spots without waiting on cold platforms.<\/p>\n

\"December<\/p>\n

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How does December fit into Osaka’s year?<\/h3>\n

Before splitting the month up, it helps to see where December sits in Osaka’s twelve-month rhythm.<\/p>\n

The table below uses Japan Meteorological Agency 30-year normals (1991-2020) from the Osaka observation station. Rainy days are from Weather Spark’s reprocessing of the same JMA data (1 mm threshold).<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Month<\/th>\nMean<\/th>\nAvg high<\/th>\nAvg low<\/th>\nRainfall<\/th>\nRainy days*<\/th>\nHumidity<\/th>\n<\/tr>\n<\/thead>\n
January<\/td>\n6.2\u00b0C \/ 43.2\u00b0F<\/td>\n9.7\u00b0C \/ 49.5\u00b0F<\/td>\n3.0\u00b0C \/ 37.4\u00b0F<\/td>\n47.0 mm \/ 1.9 in<\/td>\n6.5<\/td>\n61%<\/td>\n<\/tr>\n
February<\/td>\n6.6\u00b0C \/ 43.9\u00b0F<\/td>\n10.5\u00b0C \/ 50.9\u00b0F<\/td>\n3.2\u00b0C \/ 37.8\u00b0F<\/td>\n60.5 mm \/ 2.4 in<\/td>\n7.0<\/td>\n60%<\/td>\n<\/tr>\n
March<\/td>\n9.9\u00b0C \/ 49.8\u00b0F<\/td>\n14.2\u00b0C \/ 57.6\u00b0F<\/td>\n6.0\u00b0C \/ 42.8\u00b0F<\/td>\n103.1 mm \/ 4.1 in<\/td>\n9.8<\/td>\n59%<\/td>\n<\/tr>\n
April<\/td>\n15.2\u00b0C \/ 59.4\u00b0F<\/td>\n19.9\u00b0C \/ 67.8\u00b0F<\/td>\n10.9\u00b0C \/ 51.6\u00b0F<\/td>\n101.9 mm \/ 4.0 in<\/td>\n10.0<\/td>\n58%<\/td>\n<\/tr>\n
May<\/td>\n20.1\u00b0C \/ 68.2\u00b0F<\/td>\n24.9\u00b0C \/ 76.8\u00b0F<\/td>\n16.0\u00b0C \/ 60.8\u00b0F<\/td>\n136.5 mm \/ 5.4 in<\/td>\n10.4<\/td>\n61%<\/td>\n<\/tr>\n
June<\/td>\n23.6\u00b0C \/ 74.5\u00b0F<\/td>\n28.0\u00b0C \/ 82.4\u00b0F<\/td>\n20.3\u00b0C \/ 68.5\u00b0F<\/td>\n185.1 mm \/ 7.3 in<\/td>\n13.4<\/td>\n68%<\/td>\n<\/tr>\n
July<\/td>\n27.7\u00b0C \/ 81.9\u00b0F<\/td>\n31.8\u00b0C \/ 89.2\u00b0F<\/td>\n24.6\u00b0C \/ 76.3\u00b0F<\/td>\n174.4 mm \/ 6.9 in<\/td>\n13.4<\/td>\n70%<\/td>\n<\/tr>\n
August<\/td>\n29.0\u00b0C \/ 84.2\u00b0F<\/td>\n33.7\u00b0C \/ 92.7\u00b0F<\/td>\n25.8\u00b0C \/ 78.4\u00b0F<\/td>\n113.0 mm \/ 4.4 in<\/td>\n11.4<\/td>\n66%<\/td>\n<\/tr>\n
September<\/td>\n25.2\u00b0C \/ 77.4\u00b0F<\/td>\n29.5\u00b0C \/ 85.1\u00b0F<\/td>\n21.9\u00b0C \/ 71.4\u00b0F<\/td>\n152.8 mm \/ 6.0 in<\/td>\n12.3<\/td>\n67%<\/td>\n<\/tr>\n
October<\/td>\n19.5\u00b0C \/ 67.1\u00b0F<\/td>\n23.7\u00b0C \/ 74.7\u00b0F<\/td>\n16.0\u00b0C \/ 60.8\u00b0F<\/td>\n136.0 mm \/ 5.4 in<\/td>\n9.4<\/td>\n65%<\/td>\n<\/tr>\n
November<\/td>\n13.8\u00b0C \/ 56.8\u00b0F<\/td>\n17.8\u00b0C \/ 64.0\u00b0F<\/td>\n10.2\u00b0C \/ 50.4\u00b0F<\/td>\n72.5 mm \/ 2.9 in<\/td>\n7.2<\/td>\n64%<\/td>\n<\/tr>\n
December<\/strong><\/td>\n8.7\u00b0C \/ 47.7\u00b0F<\/strong><\/td>\n12.3\u00b0C \/ 54.1\u00b0F<\/strong><\/td>\n5.3\u00b0C \/ 41.5\u00b0F<\/strong><\/td>\n55.5 mm \/ 2.2 in<\/strong><\/td>\n6.6<\/strong><\/td>\n62%<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

* Rainy days (1 mm or more) come from Weather Spark’s reprocessing of Japan Meteorological Agency data. All other figures are JMA 30-year normals (1991-2020) for the Osaka station.<\/small><\/p>\n

Two things stand out in that row for December. First, the mean of 8.7\u00b0C (47.7\u00b0F) is roughly 5\u00b0C (9\u00b0F) colder than November, so the drop between the two months is real. Second, at 55.5 mm (2.2 in) of rain, December is Osaka’s second-driest month of the year after January<\/strong>, and it averages only 6.6 rainy days.<\/p>\n

Translation: December in Osaka is cold-ish, but it is also unusually clear and dry \u2014 close to the best possible conditions for evening illumination viewing.<\/span><\/p>\n

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How warm is early December in Osaka (Dec 1-10)?<\/h3>\n

Warmer than most visitors expect. Early December is functionally an extension of November.<\/p>\n

Here is what the Osaka observation station actually recorded over the last four years, averaged across the first ten days of the month.<\/p>\n\n\n\n\n\n\n\n\n
Year<\/th>\nMean temp<\/th>\nAvg high<\/th>\nAvg low<\/th>\nNotable days<\/th>\n<\/tr>\n<\/thead>\n
2022<\/td>\n9.97\u00b0C \/ 49.9\u00b0F<\/td>\n13.81\u00b0C \/ 56.9\u00b0F<\/td>\n6.69\u00b0C \/ 44.0\u00b0F<\/td>\n–<\/td>\n<\/tr>\n
2023<\/td>\n10.24\u00b0C \/ 50.4\u00b0F<\/td>\n15.06\u00b0C \/ 59.1\u00b0F<\/td>\n6.43\u00b0C \/ 43.6\u00b0F<\/td>\nDec 9-10 highs near 19\u00b0C \/ 66\u00b0F<\/td>\n<\/tr>\n
2024<\/td>\n10.85\u00b0C \/ 51.5\u00b0F<\/td>\n14.63\u00b0C \/ 58.3\u00b0F<\/td>\n7.59\u00b0C \/ 45.7\u00b0F<\/td>\nDec 3 high 19.0\u00b0C \/ 66.2\u00b0F<\/td>\n<\/tr>\n
2025<\/td>\n10.35\u00b0C \/ 50.6\u00b0F<\/td>\n15.14\u00b0C \/ 59.3\u00b0F<\/td>\n6.14\u00b0C \/ 43.1\u00b0F<\/td>\nDec 1 high 20.7\u00b0C \/ 69.3\u00b0F<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Daytime highs sit in the 13-15\u00b0C (55-59\u00b0F) band across all four years. Every single one of those years also produced at least one koharu-biyori<\/em> day \u2014 a “little spring” burst that pushes readings up to 19-20\u00b0C (66-68\u00b0F).<\/p>\n

Practical translation for packing:<\/p>\n