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Guam — Susupe Guam — Rota Guam — Tinian Guam — Saipan

Guam — weather in September, water temperature

By months January February March April May June July August September October November December
30.7°C Daytime temperatures 28.2°C Night temperatures 6 Sunny days 12-12.4 Sun (hours) 15 Rainy days 287.9 mm Precipitation 29.7°C water temperature
Air temperature
2022 2021 2020 2019 2018 2017 2016 2015 2014 2013
The maximum daily temperature 35.3°C — 17 September 2016.
The maximum night temperature 30.5°C — 12 September 2014.
The minimum daily temperature 26°C — 25 September 2022.
The minimum night temperature -14.5°C — 1 September 2017.
water temperature
2022 2021 2020 2019 2018 2017 2016 2015 2014 2013
The warmest water 30.8 °C — 2 September 2013. The coldest water 28.5 °C — 12 September 2018.
Sunny, cloudy and gloomy days
Precipitation, mm
Maximum precipitation 287.9 mm — September. Minimum precipitation 57 mm — March.
Wind speed, km / h
Maximum wind speed 28.1 km / h — December. Minimum wind speed 15.5 km / h — September.
Number of hours of sunshine
The maximum number of hours of sunshine per day 7 h. — June. The minimum number of hours of sunshine per day 5.4 h. — January.
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