Weather in 北マリアナ諸島 in 9月
Country-wide climate normals across 10 cities in 北マリアナ諸島.
How Hot Is 北マリアナ諸島 in 9月?
Uniform heat across 北マリアナ諸島's September: averages climb to 29°C nationally with overnight lows of 27°C, narrow spread from coast to interior. The hottest cities like Sinapalo Village register similar readings to the coolest, so plan for consistently hot weather across the country.
Sunshine in 北マリアナ諸島 in 9月
北マリアナ諸島 sees limited sun in September: just 0.8h a day in Saipan, with heavy cloud cover common across most regions. Daylight runs from 6:05 am to 6:15 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 北マリアナ諸島 In 9月?
Monsoon-like conditions dominate 北マリアナ諸島's September: Saipan sees 359mm of rain across 27 days, similar nationwide. Heavy showers fall almost daily, often in dramatic afternoon downpours. Sunshine is brief between storms, and humidity stays high throughout the month.
Is 北マリアナ諸島 Humid In 9月?
北マリアナ諸島 is enveloped in tropical-thick humidity through September: Saipan averages 77%, 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 北マリアナ諸島 In 9月
Breezy conditions cover 北マリアナ諸島's September: Saipan sits at 24 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 北マリアナ諸島 In 9月
北マリアナ諸島's September is dominated by overcast skies: Saipan averages 79% cloud cover, with similar grey persistence across the country. Days feel dim and soft-lit, with little break in the cloud deck.