Swimming in Guam (Marianas) in september 2025: Average sea temperature in september and tide times in september 2025
Average sea temperature in Guam (Marianas) in september 2025.
In september, according to seasonal norms, the sea temperature in Guam (Marianas) is:
Minimum: 85°F
Average: 85°F
Maximum: 87°F
Other useful seasonal weather averages in september:
- Outside temperature: 84°F to 85°F
- Most common weather: "Moderate rain at times"
- The wind blows at 18mph
- It rains a total of 20.8in, over 21 day(s).
Should we swim in Guam (Marianas) in september?
Yes! The water temperature in Guam (Marianas) in september is ideal
In september, swimming is ideal on the beaches around Guam (Marianas)! With water reaching 87°F at most and 85°F on average, spending time in the water is very pleasant.
Note also that in september, the climate is very bad with an average outside temperature of 85°F, 20.8in of precipitation (over 21 days) and 78.07 % humidity.
Water and normal seasonal temperatures in Guam (Marianas) in september
| September | |||
| Average sea temperature | 85°F | ||
| Minimum sea temperature | 85°F | ||
| Maximum sea temperature | 87°F | ||
| Average outside temperature | 85°F | ||
| Maximum outside temperature | 86°F | ||
| Minimum outside temperature | 85°F | ||
| Wind speed | 12.4mph | ||
| Wind temperature | 85°F | ||
| Precipitation | 20.8in | ||
| Number of days of rain | 21 jour(s) (71%) | ||
| Humidity | 79% | ||
| Visibility in kilometers | 8.68km | ||
| Cloud cover | 45% | ||
| Our opinion | ideal swimming |
Chart of the tides in september 2025
Tide times in september 2025 in Guam (Marianas)
Swim elsewhere in Micronesia in september
| City | Average T° | Min. T° | Max. T° | Our opinion | Marshall islands in september | 85°F | 86°F | ideal swimming | Chuuk Lagoon (Caroline Islands) in september | 86°F | 87°F | ideal swimming | Kosrae Island in september | 86°F | 87°F | ideal swimming | Nauru in september | 85°F | 88°F | ideal swimming | Palikir in september | 86°F | 87°F | ideal swimming | Pohnpei in september | 86°F | 87°F | ideal swimming | Yap islands in september | 85°F | 87°F | ideal swimming |