May weather forecast
Rota, Northern Mariana Islands, USA

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Weather in May

May signals a shift towards the wetter part of the year, as rainfall averages increase to 5.4" (137mm). Daylight hours reach near-peak duration in May, coupled with consistently warm sea temperatures that encourage water-based pursuits. The high UV index remains unchanged, indicating the potential for strong sunlight during daylight hours. The tropical essence of Rota's weather still holds strong with higher humidity levels due to increased rainfall. It's beneficial for visitors and locals to remain alert to the possibility of frequent showers.

Temperature

April through November bring Rota's highest average temperatures, reaching a high of 87.8°F (31°C).

Rainfall

In Rota, Northern Mariana Islands, in May, during 20 rainfall days, 5.43" (138mm) of precipitation is typically accumulated. In Rota, during the entire year, the rain falls for 247 days and collects up to 94.29" (2395mm) of precipitation.

Ocean temperature

In May, the average ocean temperature in Rota, Northern Mariana Islands, is 82.4°F (28°C).
Note: In any water activity, temperatures between 77°F (25°C) and 84.2°F (29°C) are viewed as magnificent and exceptionally pleasant for prolonged enjoyment.

Daylight

In Rota, the average length of the day in May is 12h and 47min.
On the first day of the month, sunrise is at 5:56 am and sunset at 6:35 pm. On the last day of May, in Rota, sunrise is at 5:49 am and sunset at 6:44 pm ChST.

Sunshine

The months with the most sunshine are March through June, with an average of 7h of sunshine.

UV index

The months with the highest UV index are February through September, with an average maximum UV index of 12. A UV Index of 11, and more, symbolizes an excessive health risk from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum high UV index of 12 in May translates into the following recommendations:
Enforce all necessary precautions, unprotected skin might burn swiftly. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Regardless of the cloudiness of the day, a sunscreen with SPF 30 or more should be applied and reapplied generously, specifically after swimming or outdoor exercise. Notice! The reflection of water and sand increases the UV radiation significantly.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the hottest in Rota?

April through November bring Rota's average highest temperatures, reaching a high of 87.8°F (31°C).

Is it hot in Rota during May?

An average high-temperature, in May, in Rota, is 87.8°F (31°C) and the average low-temperature is 77°F (25°C).

How much does it rain in Rota in May?

In Rota, Northern Mariana Islands, in May, during 20 rainfall days, 5.43" (138mm) of precipitation is typically accumulated.

What is the water temperature in May in Rota?

In Rota, Northern Mariana Islands, in May, the average water temperature is 82.4°F (28°C). For any water activity, surface water temperatures between 77°F (25°C) and 84.2°F (29°C) are considered as excellent and extremely pleasant for lengthened periods.

What is the average length of the day in May in Rota?

The average day length in May in Rota is 12h and 47min.

What time are sunrise and sunset in May in Rota?

In May, on the first day of the month, sunrise is at 5:56 am and sunset at 6:35 pm. On the last day of the month, in Rota, Northern Mariana Islands, sunrise is at 5:49 am and sunset at 6:44 pm ChST.

What is the month with the most sunshine in Rota?

The months with the most sunshine in Rota are March through June, with an average of 7h of sunshine.

How many hours of sunshine does Rota have in May?

The average sunshine duration in May is 7h.

What are the months with the highest UV index in Rota?

February through September, with an average maximum UV index of 12, are months with the highest UV index in Rota.

What is the UV index intensity in May in Rota?

The average daily maximum UV index in May in Rota, Northern Mariana Islands, is 12. A UV Index estimate of 11, and higher, represents an ultimate hazard to health from exposure to Sun's UV rays.
Average rainfall days
Average daylight
Average sunshine
Average UV index

Average temperature in May
Rota, Northern Mariana Islands, USA

Average temperature in May - Rota, Northern Mariana Islands, USA
  • Average high temperature in May: 88°F

The warmest months (with the highest average high temperature) are April, May, June, July, August, September, October and November (88°F).
The month with the lowest average high temperature is January (84°F).

  • Average low temperature in May: 77°F

The months with the highest average low temperature are May, June, July, August, September, October and November (77°F).
The coldest months (with the lowest average low temperature) are January, February, March, April and December (75°F).

Average rainfall in May
Rota, Northern Mariana Islands, USA

Average rainfall in May - Rota, Northern Mariana Islands, USA
  • Average rainfall in May: 5.4"

The wettest month (with the highest rainfall) is August (14.4").
The driest month (with the least rainfall) is March (3.5").

Average rainfall days in May
Rota, Northern Mariana Islands, USA

Average rainfall days in May - Rota, Northern Mariana Islands, USA
  • Average rainfall days in May: 20 days

The month with the highest number of rainy days is August (23 days).
The month with the least rainy days is April (18 days).

Average sea temperature in May
Rota, Northern Mariana Islands, USA

Average sea temperature in May - Rota, Northern Mariana Islands, USA
  • Average sea temperature in May: 82°F

The best months for swimming (with the highest average sea temperature) are June, July, August, September, October and November (84°F).
The coldest months (with the lowest average sea temperature) are February and March (81°F).

Average daylight in May /
Average sunshine in May
Rota, Northern Mariana Islands, USA

Average daylight in May / Average sunshine in May - Rota, Northern Mariana Islands, USA
  • Average daylight in May: 12h and 5min

The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 18min).

  • Average sunshine in May: 7h

The months with the most sunshine are March, April, May and June (Average sunshine: 7h).
The month with the least sunshine is October (Average sunshine: 4h).

Average UV index in May
Rota, Northern Mariana Islands, USA

Average UV index in May - Rota, Northern Mariana Islands, USA
  • Average UV index in May: 12

The months with the highest UV index are February, March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 9).

Rota, Northern Mariana Islands, USA

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