Weather in Tonga in januari
Country-wide climate normals across 14 cities in Tonga.
How Hot Is Tonga in januari?
Uniform heat across Tonga's January: averages climb to 27°C nationally with overnight lows of 26°C, narrow spread from coast to interior. The hottest cities like Lotofoa register similar readings to the coolest, so plan for consistently hot weather across the country.
Sunshine in Tonga in januari
Tonga sees limited sun in January: just 1.2h a day in Nuku‘alofa, with heavy cloud cover common across most regions. Daylight runs from 6:15 am to 7:30 pm, but persistent grey skies and overcast stretches mean direct sunlight is genuinely scarce. Many days pass without any prolonged sunny spells.
Does It Rain In Tonga In januari?
Heavy seasonal rains saturate Tonga in January — Nuku‘alofa averages 292mm of rain across 22 days, with downpours an almost daily feature. The pattern is consistent across most regions, particularly along monsoon-affected coasts. Expect torrential afternoon storms followed by humid heat.
Is Tonga Humid In januari?
Tonga is enveloped in tropical-thick humidity through January: Nuku‘alofa averages 80%, and most of the country tracks similarly. The constant moisture makes warm temperatures feel substantially hotter, and even nights bring limited cooling. Light cotton clothing is essential.
Wind In Tonga In januari
Breezy conditions cover Tonga's January: Nuku‘alofa sits at 27 kph on average, with the country as a whole feeling windy through the day. Afternoon winds pick up across most cities, and coastal regions often run significantly higher.
Cloud Cover In Tonga In januari
Tonga's January is dominated by overcast skies: Nuku‘alofa averages 78% cloud cover, with similar grey persistence across the country. Days feel dim and soft-lit, with little break in the cloud deck.