January weather forecast
Rota, Northern Mariana Islands, USA

January's weather in Rota, Northern Mariana Islands, USA, tends to be fairly consistent with what is to be expected in a tropical climate. The constant temperatures combined with the high probability of rainfall create a humid environment for the island. The sea remains warm throughout this period, inviting for both locals and tourists engaging in water activities. Sunshine hours are relatively lesser compared to upcoming months, matched by a relatively moderate UV index. It is important to note that January sees an average rainfall of 5" (127mm), represented across an estimated 22 days of the month.

Temperature

January is the month when Rota, Northern Mariana Islands, sees the lowest average temperatures, with a high of 84.2°F (29°C) and a low of 75.2°F (24°C).

Rainfall

In Rota, Northern Mariana Islands, in January, it is raining for 22 days, with typically 5.04" (128mm) of accumulated precipitation. In Rota, during the entire year, the rain falls for 247 days and collects up to 94.29" (2395mm) of precipitation.

Ocean temperature

In Rota, in January, the average water temperature is 82.4°F (28°C).
Note: Swimming, diving, and other water activities in the temperature range of 77°F (25°C) to 84.2°F (29°C) are perceived as very enjoyable and comfortable for prolonged durations.

Daylight

In Rota, Northern Mariana Islands, the average length of the day in January is 11h and 24min.
On the first day of January in Rota, sunrise is at 6:43 am and sunset at 6:01 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 6:17 pm ChST.

Sunshine

The average sunshine in January is 6h.

UV index

In January, the average daily maximum UV index in Rota is 10. A UV Index value of 8 to 10 symbolizes a very high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index of 10 in January converts into the following recommendations:
Taking safety measures is non-negotiable; skin and eyes can be swiftly affected if neglected. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Applying and reapplying a broad-spectrum sunscreen with a minimum SPF 30 after every two hours, outdoor workout, or swim is recommended. Note! Reflective surfaces like sand and water heighten the UV radiation levels.