Kosrae Weather in September
September in Kosrae brings high temperatures, with daytime highs of 30°C (86°F) and nights around 26°C (79°F). Rainfall is at its lowest this month, making it one of the more reliable months to be outdoors.
Rainfall in Kosrae in September
Kosrae is in the rainy season in September, with rain on around 21 days and an average of 267 mm (11 in). Rainy season showers tend to be fairly substantial. A good rain jacket or umbrella is worth having with you most days. Dry conditions dominate this month. A great time for outdoor fun and exploration.
Temperature in Kosrae in September
Kosrae in September gets highs of 30°C (86°F) during the day and drops to 26°C (79°F) at night. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. With overnight lows of 26°C (79°F), nights stay very warm. Air conditioning makes a real difference if you're sensitive to heat. A cold shower before bed can also help you get to sleep more comfortably.For more travel ideas, our weather planner can help you explore destinations around the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Micronesia, check out our Kosrae's climate page.
Kosrae Temperature in September
Min Temperature
26°C (79°F)
Max Temperature
30°C (86°F)
Chance of Rain
68%
Precipitation
267 mm (11 in)
Rainy days
21 days
Historical weather for Kosrae in September
Browse day-by-day weather records for Kosrae spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Kosrae historical weather extremes in September
Based on 19 years of weather observations (2006-2025), these are the most extreme conditions recorded in Kosrae.
- Kosrae recorded its highest September temperature of 33°C (91°F) on September 4, 2009.
- On September 2, 2009, Kosrae saw its coldest September day with temperatures maxing out at 27°C (81°F).
- Nighttime temperatures dropped to 19°C (66°F) on September 5, 2022, marking the coldest September night on record.
- The wettest day in September Kosrae was on September 9, 2025 with 120 mm (4.7 in) of precipitation.
Best Places in Micronesia in September
Find out more about the weather in Micronesia and which places have the best travel conditions in this month. See all of Micronesia in September →
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What to Wear in Kosrae in September
Warm but pleasant conditions in Kosrae in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions.What To Do in Kosrae in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Micronesia, check out our Kosrae's climate page.
See the full Kosrae climate overview or explore weather in Micronesia.
