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Hourly Forecast
Daylight Hours
06:50
Sunrise
19:38
Sunset
Moon
New Moon
06:48
Moonrise
19:32
Moonset
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Weather in Osa today, September 11, 2026
Osa starts September 11, 2026 under largely sunny skies, with bright spells setting the tone from the outset. Outdoor plans should enjoy long stretches of open sky as the day unfolds.
The temperature range runs from about 12°C up to 21°C. Relative humidity sits between 57% and 77%, reaching its peak around 20:00. Airflow remains manageable, reaching about 2.9 km/h around 17:00.
The afternoon keeps an overcast feel, as cloud reaches about 100% around 20:00. Outdoor plans may still want a flexible backup. Expect visibility near 38.1 km, with poorer spells close to 35.5 km. Expect sunrise at 06:50, sunset at 19:38, and 12 hours 47 minutes of sunlight today overall.
Overall, Osa on September 11, 2026 favours outdoor plans under mostly open skies, with a comfortable high near 21°C.
Frequently asked questions about weather in Osa
How warm does it get in Osa?
The warmest month in Osa is July, with average high temperatures of 24°C. The average temperature during this period is around 19°C.
How cold does it get in Osa?
The coldest month in Osa is January, with average low temperatures of -14°C. The average temperature during this period is around -11°C.
What is the wettest time of year in Osa?
The wettest month in Osa is July, with an average of 63mm of precipitation.
What is the driest time of year in Osa?
The driest month in Osa is February, with an average of 40mm of precipitation.
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