January weather forecast
Hawaii, USA

January in Hawaii marks the middle of its winter season. During this month, temperatures typically range from 65°F (18.3°C) to 79°F (26.1°C). The cooler temperatures in January, compared to December or February, make it one of the chilliest months in Hawaii, although it's mild when juxtaposed with many other regions worldwide.

In terms of precipitation, January is among the wetter months. Notably, Mount Waialeale on Kauai, which records some of the highest average annual rainfall globally, receives a significant portion of its 460" (11684mm) during this period. That said, Hawaii's diverse microclimates mean that while some areas, especially the windward sides, can be experiencing rainfall, leeward areas might have sunny spells simultaneously.

While lowland areas enjoy mild temperatures and occasional showers, higher altitudes, especially on peaks like Mauna Kea and Mauna Loa, might witness snowfall. Though snow in Hawaii might seem counterintuitive given its tropical nature, these high-altitude zones are exceptions, especially during the colder months.

Comparatively, January is slightly cooler and wetter than December and mirrors the weather patterns of February, which also falls in the wet season. However, despite January's rainy disposition, Hawaii's localized weather patterns offer visitors the opportunity to find sunshine, even on days with forecasted rain.

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• Honolulu - January »
  January USA is characterized by comfortable temperatures, hovering between 70°F (21.1°C) to 75.7°F (24.3°C), and a relative humidity of 75%. The months with the lowest UV index are January through June, October through December, with an average maximum UV index of 6.
• Hilo - January »
  January, May through July, with an average relative humidity of 78%, are the least humid months in Hilo, Hawaii. In Hilo, during January, the rain falls for 13.3 days and regularly aggregates up to 2.72" (69mm) of precipitation.
• Kailua - January »
  January and November, with an average relative humidity of 74%, are the least humid months in Kailua, Hawaii. January and November, with an average relative humidity of 74%, are the least humid months in Kailua.
• Kaneohe - January »
  January brings refreshing weather to Kaneohe marking the start of a new year with a pleasant mixture of slight humidity and soft sunshine. The months with the lowest humidity in Kaneohe are January, May, June, September and November, with an average relative humidity of 75%.
• Kahului - January »
  The months with the lowest UV index in Kahului are January through June, November and December, with an average maximum UV index of 6. The months with the lowest UV index in Kahului are January through June, November and December, with an average maximum UV index of 6.
• Ewa Gentry - January »
  January presents a pleasant weather profile for Ewa Gentry with mild temperatures coupled with an average rainfall of 0.98" (25mm) spread over 12.3 days. In January, in Ewa Gentry the rain falls for 12.3 days.
• Kihei - January »
  In Kihei during January, the rain falls for 8.8 days and regularly aggregates up to 0.55" (14mm) of precipitation. The months with the lowest humidity in Kihei are January and February, with an average relative humidity of 74%.
• Wahiawa - January »
  On the first day of January in Wahiawa sunrise is at 7:10 am and sunset at 6:01 pm. In Wahiawa in January, during 16 rainfall days, 1.34" (34mm) of precipitation is typically accumulated.
• Schofield Barracks - January »
  January is the month with the most rainfall in Schofield Barracks, with 7.09" (180mm) of accumulated precipitation. On the first day of January in Schofield Barracks, sunrise is at 7:10 am and sunset at 6:01 pm.
• Wailuku - January »
  The months with the lowest humidity in Wailuku, Hawaii, are January and February, with an average relative humidity of 74%. January through June, November and December, with an average maximum UV index of 6, are months with the lowest UV index in Wailuku, Hawaii.