- Search for cheap car hire prices from top car hire providers
- Filter car hire deals by price, car type, brand & more
- Brands include Avis, Enterprise, Europcar, Hertz, Sixt & Thifty
Guam weather in December 2021
Get the latest coronavirus (Covid-19) updates for Guam with current travel advice and statistics on new cases per 100,000 and vaccine.
- 3030°C max day temperature
- 2323 days with some rainfall
- 2424°C min night temperature
- 1111 hours of daylight per day
- HHigh heat & humidity
- 150150 mm of monthly rainfall
- 99 (Very High) UV index
- 2828°C sea temperature
Recommended for Guam
The December weather guide for Guam shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
How hot is it in Guam in December?
Daytime temperatures usually reach 30°C in Agana, Guam in December with high heat and humidity, falling to 24°C at night.
How sunny is it in Guam in December?
There are normally 5 hours of bright sunshine each day in Agana, Guam in December - that's 41% of daylight hours.
How warm is the sea around Guam in December?
The average sea temperature around Agana, Guam in December is 28°C.
Does it rain in Guam in December?
There are usually 23 days with some rain in Agana, Guam in December and the average monthly rainfall is 150mm.
What is the chance of a typhoon in Guam in December?
On average less than 1 day in December in Agana, Guam is likely to be affected by the passage of one or more tropical storms.
Metric (°C / mm) | Imperial (°F / inches)
Guam sunrise & sunset times for December 2021
Browse the sunrise and sunset times for Guam in December 2021. Select a month to view Guam sunrise & sunset times for the next 12 months. The Guam sunrise and sunset times shown below are for Agana.
|Date||Sunrise times||Sunset times|
|Wednesday, 1st December 2021||06:28||17:52|
|Thursday, 16th December 2021||06:36||17:57|
|Friday, 31st December 2021||06:44||18:04|
- Search & compare the best car hire deals
- Free 48-hour cancellation policy & no hidden charges
- Check prices with Avis, Europcar, Sixt & more
Get your weekly fix of holiday inspiration from some of the world's best travel writers plus save on your next trip with the latest exclusive offers
We promise not to share your details
Popular travel offers
*affiliate links: find out how we are funded and why this helps us remain free to use.