Climate of Guam
Guam has a moderate climate. There is a lot of rainfall in the summer, and in the winter it is quite dry again. The average annual temperature for Guam is 17° degrees and there is about 642 mm of rain in a year. It is dry for 210 days a year with an average humidity of 72% and an UV-index of 4.
Climate averages for the whole year
- Day: the average daily temperature during the day is between 5°C and 28°C
- Night:the average nighttime temperature is between -1°C and 23°C
- Rain: it rains 124 days and there is a total of approximately 641 mm rainfall
- Snow: it snows an average of 5 days per year
- Sun hours: throughout the year there are 2843 sun hours
Maximum temperature: | between 5°C and 28°C |
Warmest month: | 28°C in August |
Coldest month: | 5°C in January |
Night temperature: | between -1°C and 23°C |
Dry days: | 236 days |
Days with rain: | 124 days |
Days with snow: | 5 days |
Total rain sum: | 641 mm |
Hours of sunshine: | 2843 hours |
Temperature graph
This graph shows the average maximum temperature (red) and minimum temperature (blue) for Guam.
Precipitation graph
This graph shows the average amount of rainfall per month for Guam.
Climate table of Guam
In this climate table you can see at a glance what the average weather per month is for Guam. The data has been collected over a 30-year period, from which an average per month has been derived. From year to year the differences may be larger or smaller, but with this climate table you have a good idea of what the weather for Guam might be like in a given month.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Day temp. (°C) | 5 | 7 | 11 | 16 | 20 | 23 | 27 | 28 | 24 | 19 | 13 | 7 |
Night temp. (°C) | -1 | 1 | 5 | 9 | 14 | 17 | 22 | 23 | 19 | 14 | 8 | 1 |
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
Precipitation (mm) | 12 | 26 | 48 | 81 | 46 | 47 | 103 | 90 | 75 | 61 | 27 | 25 |
Days with rain | 4 | 7 | 10 | 11 | 10 | 12 | 19 | 16 | 12 | 9 | 8 | 6 |
Days with snow | 1 | 2 | 1 | - | - | - | - | - | - | - | - | 1 |
Dry days | 26 | 19 | 20 | 19 | 21 | 18 | 12 | 15 | 18 | 22 | 22 | 24 |
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
Sun hours per day | 6 | 7 | 7 | 9 | 10 | 10 | 9 | 10 | 8 | 6 | 6 | 6 |
Wind force (Bft) | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
UV-index | 2 | 2 | 3 | 4 | 5 | 5 | 6 | 6 | 5 | 4 | 3 | 2 |
Best time to visit Guam
The best time to visit Guam in South Korea is from May and June and August through October. In this period you have a warm temperature and little precipitation. The highest average temperature in Guam is 28°C in August and the lowest is 5°C in January.
Climate of Guam by month
What is the average climate in a given month for Guam? Click on a month to see all monthly averages for sunshine, maximum and minimum temperatures, percent chance of rain per day, snowfall and number of rainy days.
Guam weather experiences
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