Last updated: August 31, 2025
January in Saipan, Northern Mariana Islands, offers a delightful tropical climate characterized by mild temperatures and moderate humidity. The mercury typically reaches a maximum of 28°C (83°F), with an average temperature of around 27°C (80°F) and a comfortable minimum of 24°C (76°F). Travelers can expect about 52 mm (2.0 in) of rainfall over approximately 13 days, ensuring lush landscapes and vibrant flora. Despite this precipitation, the overall ambiance remains inviting, perfect for those seeking a tropical escape. Humidity levels hover around 83%, contributing to the island's rich, balmy atmosphere.
In January, Saipan, Northern Mariana Islands basks in delightful warmth, with temperatures ranging from a comfortable 24°C (76°F) at night to a pleasant 28°C (83°F) during the day. The average temperature settles around 27°C (80°F), creating the perfect backdrop for sun-soaked days and balmy evenings. As the year progresses into February, the temperatures remain steady, with only slight fluctuations, maintaining the tropical charm that attracts visitors year-round. Notably, from January to March, both the minimum and maximum temperatures remain consistent, but a gradual shift begins in April when daytime highs peak at 29°C (84°F). This warming trend continues into the summer months, with June through September showcasing maximums of 30°C (86°F), providing an ideal climate for beachgoers and outdoor enthusiasts. Overall, January marks the start of a warm cycle that characterizes the beauty of life on this picturesque island.
In January, Saipan experiences a moderate precipitation amount of 52 mm (2.0 in), falling over approximately 13 days. This sets the tone for an overall wet season, with rainfall steadily increasing in the following months. As the year progresses, February sees a slight uptick to 57 mm (2.2 in), while March dips to 41 mm (1.6 in). April brings a noticeable rise to 63 mm (2.5 in), hinting at the upcoming wet months. By June, the rainfall escalates dramatically, peaking in August with a staggering 409 mm (16.1 in), accompanied by 29 rainy days. The trend clearly emphasizes the transition from drier months to a more intense rainy season, making January a relatively gentle precursor to the tropical downpours that define the summer months in the Northern Mariana Islands.
In January, Saipan experiences a humidity level of 83%, setting the tone for a consistently tropical climate throughout the year. Following a slight dip to 81% in February, humidity stabilizes at 83% from March to April, reflecting the island's characteristic moistness as it transitions into warmer months. As temperatures continue to rise, May sees a peak at 84%, making it the most humid month. From June through August, humidity slightly decreases to 82% and 80%, respectively, offering a brief respite during the peak summer. However, September through December sees a return to the mid-range humidity levels of 81% to 83%, highlighting the island's consistently warm and humid tropical atmosphere. Overall, the humidity in Saipan remains high throughout the year, with only minor fluctuations that underscore its lush, inviting environment.
In Saipan, Northern Mariana Islands, January brings a UV Index of 10, categorized as very high, with a burn time of just 15 minutes. This sets the tone for the subsequent months, where UV levels climb to extreme heights. Notably, from February through April, the index reaches 12 to 15, sharply reducing burn time to a mere 10 minutes. This trend of extreme levels persists from February through November, peaking in April before slightly decreasing to 11 in November and returning to 10 in December. Awareness of this seasonal pattern is crucial for residents and visitors alike, as prolonged exposure can result in skin damage. Always remember to check the Saipan UV Index for updated information to ensure safe sun exposure.
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January in Saipan, Northern Mariana Islands, welcomes visitors with 230 hours of warm sunshine, setting a tranquil tone for the year ahead. As the months roll on, the island basks in increasing daylight, peaking in May with a splendid 339 hours of golden rays, perfect for outdoor adventures. The sunny warmth gently begins to taper off in the latter half of the year, with August seeing 275 hours, a noticeable contrast to the earlier months’ abundance. By the time December arrives, sunshine remains generous at 288 hours, ensuring a bright exit to the year. This trend of gradual increase in daylight hours creates a perfect backdrop for the diverse activities and natural beauty that Saipan has to offer throughout the season.
In Saipan, Northern Mariana Islands, the likelihood of sunny weather in January stands at an encouraging 67%, making it one of the sunniest months of the year. This promising start is followed by a slight dip in February, where the chance of sun declines to 59%, before bouncing back to a striking 77% in March. However, as the year progresses into the warmer months, particularly from June to August, the chances of sunshine diminish significantly, plunging to just 22% in July and an even lower 14% in August. As fall approaches, the likelihood begins to recover modestly, reaching back to 59% in November. Overall, January not only offers a bright beginning to the year but also highlights a general trend of fluctuating sun exposure, peaking around early spring before tapering off in the summer months.
In January, Saipan enjoys a consistent 11 hours of daylight, a trend that continues into February. As spring approaches in March, daylight begins to stretch to 12 hours, a duration that remains steady through April and May. June brings the longest days of the year at 13 hours, before daylight begins to taper off again, dropping back to 12 hours from July through September. As the year winds down, October, November, and December return to 11 hours of daylight, illustrating a rhythmic ebb and flow of daylight that characterizes the island’s tranquil tropical ambiance throughout the year.
In Saipan, January ushers in a brisk average wind speed of 7.8 m/s (17 mph), setting the tone for a month characterized by lively breezes. As the year progresses into February, the winds slightly diminish to 7.3 m/s (16 mph), hinting at the approaching calm of spring. Interestingly, March sees an even gentler shift, dropping to 6.9 m/s (15 mph), before April delivers the most tranquil breath of air at just 4.8 m/s (11 mph). However, May surprises with a resurgence to 8.0 m/s (18 mph), showcasing how the island’s climate can change rapidly. The winds notably taper off in the summer months, with June reaching a low of 4.3 m/s (10 mph), only to gradually pick up again in the fall. By November, the average speed returns to a robust 7.4 m/s (16 mph), while December closes out the year nearly matching January’s vigor at 7.9 m/s (18 mph). This cycle reflects a distinctive seasonal ebb and flow, blending calm with exhilaration across the months.
Weather in Saipan varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Saipan, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather conditions of January and February, both months feature similar temperature ranges, with January experiencing slightly warmer averages at 27°C (80°F) compared to February's average of 26°C (80°F). Precipitation increases in February, accumulating 57 mm (2.2 in) over 17 days, while January sees 52 mm (2.0 in) over 13 days. Humidity levels are also comparable, with January at 83% and February slightly lower at 81%. Overall, while January tends to be a bit warmer and drier, February brings increased rainfall. For more details, visit Saipan weather in February.
January and March weather in Saipan share a similar temperature profile, with both months averaging around 27°C (80°F). However, January tends to be slightly cooler, beginning with a minimum temperature of 24°C (76°F), compared to March's minimum of 25°C (77°F). Precipitation levels are also noteworthy: January receives 52 mm (2.0 in) of rain over 13 days, while March sees a decrease to 41 mm (1.6 in) with the same number of rainy days. Despite these variations, the humidity remains consistent at 83% for both months. For more detailed insights, you can check Saipan weather in March.
In January, Saipan experiences mild temperatures, with a minimum of 24°C (76°F) and a maximum of 28°C (83°F), accompanied by moderate precipitation of 52 mm (2.0 in) over 13 days. Humidity remains high at 83%, creating a warm and slightly damp feel. In contrast, April sees a slight increase in temperatures, with a minimum of 25°C (77°F) and a maximum of 29°C (84°F). Additionally, April brings about more rainfall, totaling 63 mm (2.5 in) spread across 16 days, yet the humidity level stays consistent at 83%. For a detailed overview of April’s climate, check Saipan weather in April.
In January, the weather features a warm tropical climate with temperatures ranging from a minimum of 24°C (76°F) to a maximum of 28°C (83°F), making it quite pleasant with an average temperature of 27°C (80°F). However, this month experiences 52 mm (2.0 in) of precipitation over approximately 13 days, accompanied by a humidity level of 83%. In contrast, May showcases slightly warmer weather, where the minimum temperature is 26°C (78°F) and the maximum reaches 29°C (85°F), with an average of 28°C (82°F). The rainfall also increases, totaling 59 mm (2.3 in) over about 20 days, with humidity remaining relatively similar at 84%. For more details on the May weather, you can check Saipan weather in May.
In January, the weather in Saipan typically features a minimum temperature of 24°C (76°F) and an average of 27°C (80°F), with a maximum reaching 28°C (83°F). The month sees a total precipitation of 52 mm (2.0 in) spread over 13 days, accompanied by a high humidity level of 83%. In contrast, June experiences slightly warmer temperatures, with a minimum of 25°C (78°F), an average of 28°C (83°F), and a maximum of 30°C (86°F). However, June also brings increased rainfall, totaling 120 mm (4.7 in) over 21 days, while maintaining a humidity level of 82%. For more details on June weather, you can visit Saipan weather in June.
In January, Saipan experiences mild temperatures, with a minimum of 24°C (76°F) and an average of 27°C (80°F), making it comfortable for outdoor activities. However, with 52 mm (2.0 in) of precipitation spread over 13 days, it still maintains a humid 83% humidity level. In contrast, July sees slightly warmer temperatures, with a minimum of 26°C (79°F) and an average of 28°C (82°F), but it also brings significantly more rain, totaling 265 mm (10.4 in) over 28 days, coupled with a slightly lower humidity of 80%. For a more detailed look at the weather in July, you can visit Saipan weather in July.
In January, the weather in Saipan features mild temperatures, with a minimum of 24°C (76°F), an average of 27°C (80°F), and a maximum of 28°C (83°F). The month also experiences 52 mm (2.0 in) of precipitation over 13 days, accompanied by high humidity levels of 83%. In contrast, August sees slightly warmer temperatures, with a minimum of 25°C (78°F), an average of 28°C (82°F), and a maximum of 30°C (86°F). However, August is characterized by significantly heavier rainfall, totaling 409 mm (16.1 in) across 29 days, while humidity remains slightly lower at 80%. For more detailed information on the weather in August, check out Saipan weather in August.
In comparing the weather between January and September, we see some notable differences. January experiences milder temperatures with a minimum of 24°C (76°F) and an average of 27°C (80°F), whereas September warms up slightly, showcasing a minimum of 25°C (78°F) and an average of 28°C (82°F). Moreover, September is considerably wetter, with precipitation reaching 320 mm (12.6 in) over 28 days, compared to January’s 52 mm (2.0 in) over just 13 days. Despite this increased rainfall in September, the humidity remains relatively constant, at 81% compared to January's 83%. For more detailed information on the conditions, you can explore Saipan weather in September.
In January, the weather is characterized by slightly cooler temperatures, with minimums around 24°C (76°F) and an average of 27°C (80°F). This month sees moderate rainfall of 52 mm (2.0 in) spread over 13 days, coupled with high humidity of 83%. In contrast, October experiences warmer temperatures, with a minimum of 26°C (78°F) and an average of 28°C (82°F), peaking at 30°C (85°F). However, October is significantly wetter, receiving 365 mm (14.4 in) of rain across 28 days, while humidity remains relatively constant at 81%. For more details, visit Saipan weather in October.
In January, Saipan experiences slightly cooler temperatures with a minimum of 24°C (76°F) and an average of 27°C (80°F), while November offers a warmer climate, showcasing a minimum of 26°C (78°F) and an average of 28°C (82°F). Precipitation levels are significantly higher in November, with 141 mm (5.5 in) over 23 days compared to January's 52 mm (2.0 in) over 13 days, making November a wetter month. Both months maintain high humidity levels around 83% in January and 82% in November. For a detailed look at what to expect, check out Saipan weather in November.
In January, Saipan experiences slightly cooler temperatures compared to December, with average daily highs around 28°C (83°F) compared to December's max of 29°C (84°F). Both months have similar average temperatures of 27°C (80°F), but January's precipitation is lower at 52 mm (2.0 in) over 13 days, while December sees more rainfall at 74 mm (2.9 in) spread across 19 days. Interestingly, humidity remains consistent throughout both months at 83%. For a more detailed comparison of the climate, you can check Saipan weather in December.
January in Saipan features warm temperatures and high humidity, setting it apart from the cooler months that precede it. While the max temperatures hover around a comfortable 28°C, the notable increase in rainfall, with about 13 days of precipitation, adds a touch of tropical richness to the atmosphere. This combination of warmth and moisture makes January a unique time to experience Saipan’s lush beauty and vibrant surroundings. For a deeper dive into what to expect throughout the year, check out the detailed insights on Saipan Climate.