Last updated: August 21, 2025
In Hagatna, Guam during March, the weather presents a delightful blend of warmth and moisture, with a maximum temperature reaching 28°C (83°F) and an average of 27°C (81°F). The minimum temperature hovers around 25°C (77°F), making it a comfortable destination for visitors. However, be prepared for frequent rain, as March records a precipitation total of 53 mm (2.1 in) over 15 days, resulting in a humidity level of 84%. This tropical climate creates a lush environment, perfect for exploring the island's natural beauty while enjoying the inviting warmth of the Pacific paradise.
In March, Hagatna, Guam continues to bask in warm tropical temperatures, with minimums steady at 25°C (77°F) and averages consistently around 27°C (81°F). The maximum temperature remains fairly constant as well, at 28°C (83°F), creating a pleasant and inviting climate perfect for outdoor activities. This stability in temperatures from previous months reflects the region's tropical nature, allowing residents and visitors alike to enjoy comfortable conditions as they transition into the warmer months ahead. As April approaches, slight increases in temperature are expected, hinting at the impending warmth of spring and summer.
In March, Hagatna, Guam experiences a modest shift in precipitation, recording 53 mm (2.1 in) over 15 days of rainfall. This marks a slight decrease from the wetter months preceding it, such as February, which saw 77 mm (3.0 in) in the same number of days. As the region transitions towards the wetter summer months, April anticipates a notable increase in precipitation to 94 mm (3.7 in), hinting at the tropical patterns typical of this time of year. Overall, March serves as a brief respite before the arrival of heavier rains, maintaining the island's vibrant ecosystem.
In March, Hagatna, Guam experiences a humidity level of 84%, marking a slight increase from 82% in February. This rise aligns with the broader trend observed in the early months of the year, where humidity levels hover between 82% and 84%. As spring approaches, the humidity remains consistent, reflecting the tropical climate's characteristic warmth and moisture. Interestingly, this stable pattern continues into April, with humidity still at 84%, before gradually declining in the summer months. Throughout the year, the humidity in Hagatna varies minimally, suggesting a consistently humid environment that residents and visitors can expect, with March serving as a pivotal point in this humid cycle.
March in Hagatna, Guam, brings a soaring UV Index of 15, continuing the trend of extreme exposure that begins the year with January's 11 and peaks at 13 in February. This month marks the highest UV levels before a plateau is reached in April, maintaining that intensity. With a consistent burn time of just 10 minutes, it's crucial for residents and visitors alike to stay protected. Following this pattern, the UV Index remains high throughout the following months, creating a real imperative to practice sun safety. For more insights on the UV levels throughout the year, check out Hagatna UV Index.
UV Risk Categories
March shines brightly in Hagatna, Guam, with an impressive 316 hours of sunshine, marking the month as a standout in the annual cycle. Following a gradual increase from 232 hours in January, the sun's presence continues to gain momentum through February, peaking in March. This trend of increasing daylight not only highlights the warmth of spring but also sets the stage for an even sunnier May, which boasts 336 hours. The consistency of sunshine in Hagatna, particularly in these early months of the year, reflects an inviting and vibrant atmosphere, perfect for outdoor activities and exploring the island's natural beauty. As the months progress, sunshine levels vary, with July experiencing a slight dip, yet overall, the annual pattern showcases a robust and radiant climate, making Hagatna a tropical haven for sun-seekers.
As spring begins to bloom in March, Hagatna, Guam, enjoys a promising increase in sunny weather, with a 63% chance of sun—a marked rise from the earlier months of the year. This uptick stands in stark contrast to the subsequent months, where the likelihood of sunny days declines sharply, particularly in the summer, when July and August see chances drop to a mere 13% and 5%, respectively. March presents a delightful window of opportunity for outdoor activities and soaking up the sun, making it a prime time for locals and visitors alike to revel in Hagatna's vibrant atmosphere before the clouds gather and the rainy season approaches.
In March, Hagatna, Guam, experiences a delightful increase in daylight duration, expanding to a full 12 hours. This marks a shift from the consistent 11 hours observed in the earlier months of January and February. As spring approaches, the longer days create an inviting atmosphere for outdoor activities and exploration. Notably, this trend of prolonged daylight continues through the remaining months of spring and summer, maintaining a steady 12-hour duration until October, when it gradually reverts back to 11 hours. This rhythm of daylight not only enhances the island's vibrant environment but also invites residents and visitors alike to revel in the warmth and beauty of Guam's natural landscapes.
In March, Hagatna, Guam experiences a gentle breeze, with an average wind speed of 7.1 m/s (16 mph), marking a noticeable decline from the stronger gusts of January and February. As the dry season approaches, this shift signals the transition towards calmer weather. Interestingly, following March's winds, the following months—especially April's calm of 4.9 m/s (11 mph)—indicate a trend toward lighter breezes leading into the warm summer period. However, the winds pick up again in May and November, demonstrating the island's seasonal variability, where the lull of March provides a brief pause before the winds once again dance across the shores of this tropical paradise.
Weather in Hagatna varies notably across the year, with each month offering distinct climate conditions. This page compares March’s weather to other months in Hagatna, focusing on differences in temperature, rainfall, humidity, and UV levels.
When comparing the weather in March to that of January, we see some similarities and slight variations. Both months experience a minimum temperature of 25°C (77°F), an average of 27°C (81°F), and a maximum of 28°C (83°F). However, March has slightly less precipitation at 53 mm (2.1 in) compared to January's 61 mm (2.4 in), while both months share the same number of rainy days, with precipitation occurring on 15 days. Additionally, March is a touch more humid at 84%, compared to January's 83%. For more detailed information on January's weather, you can check Hagatna weather in January.
In comparing the weather of March and February, both months exhibit similar temperature ranges, with minimum temperatures at 25°C (77°F), average temperatures around 27°C (81°F), and maximum temperatures reaching up to 28°C (83°F). However, March receives slightly less precipitation, totaling 53 mm (2.1 in), compared to February's 77 mm (3.0 in). Additionally, while both months share the same number of rainy days at 15, March experiences a marginally higher humidity level at 84%, compared to February's 82%. For more detailed insights about February's weather, you can visit Hagatna weather in February.
March and April exhibit similar temperature patterns, with both months featuring a minimum of 25°C (77°F) and an average of 27°C (81°F). However, April tends to be slightly warmer, reaching a maximum of 29°C (84°F) compared to March's peak of 28°C (83°F). In terms of precipitation, April experiences a significant increase, receiving 94 mm (3.7 in) over 18 days, whereas March recorded 53 mm (2.1 in) with rainfall spread over 15 days. Both months maintain a consistent humidity level of 84%, contributing to a tropical feel. For more detailed information about weather patterns, you can refer to Hagatna weather in April.
In comparing the weather between March and May, we see a slight increase in average temperatures, with May reaching an average of 28°C (82°F) compared to March's 27°C (81°F). Both months have similar minimum temperatures, though May has a marginally higher maximum of 29°C (84°F) versus March's 28°C (83°F). Precipitation also rises in May, with 78 mm (3.1 in) over 22 days compared to March's 53 mm (2.1 in) over 15 days, indicating a wetter month. Humidity remains relatively constant, with March at 84% and May slightly lower at 83%. For more details on the weather in Hagatna during this time, you can check out the following link: Hagatna weather in May.
In comparing the weather between March and June, both months experience warm temperatures, but June tends to be slightly warmer, with an average of 28°C (82°F) compared to March's 27°C (81°F). While both months see minimum temperatures around 25°C (77°F), June reaches a higher maximum of 29°C (85°F), reflecting its summer onset. However, June also brings significantly more rainfall, with 159 mm (6.3 in) over 23 days, compared to March's 53 mm (2.1 in) during just 15 days. This results in a wetter atmosphere, though humidity levels are relatively similar, with March at 84% and June at 80%. For more details on June's weather, you can check Hagatna weather in June.
In March, the weather is warm with average temperatures ranging from a minimum of 25°C (77°F) to a maximum of 28°C (83°F), and a relatively moderate precipitation of 53 mm (2.1 in) falling over 15 days. The humidity remains high at 84%, contributing to a tropical feel. In contrast, July experiences slightly warmer temperatures with an average ranging from 26°C (78°F) to 29°C (85°F), but it is significantly wetter, with 276 mm (10.9 in) of rain recorded over 30 days. The humidity drops slightly to 80%, but the persistent rainfall makes July notably more humid. For a detailed analysis, visit Hagatna weather in July.
In March, the weather tends to be warm and relatively dry, with average temperatures ranging from a minimum of 25°C (77°F) to a maximum of 28°C (83°F). The month sees about 53 mm (2.1 inches) of precipitation over 15 days, alongside a high humidity level of 84%. In contrast, August is slightly warmer, with average temperatures varying from 25°C (78°F) to a maximum of 29°C (85°F). However, it experiences significantly more rainfall, totaling 405 mm (16.0 inches) over 30 days, while maintaining a slightly lower humidity of 80%. For a detailed look at August weather patterns, visit Hagatna weather in August.
In March, the weather features warm temperatures, with an average of 27°C (81°F) and minimal rainfall of 53 mm (2.1 in) spread across 15 days, resulting in a relatively humid environment at 84%. In contrast, September experiences slightly higher temperatures, with averages reaching 28°C (82°F) and a maximum of 30°C (86°F), but it also sees a significant increase in precipitation, totaling 375 mm (14.8 in) over 28 days. The humidity in September is slightly lower at 81%, yet the prolonged rainy days can create a more humid atmosphere. For a detailed overview of the September climate, you can visit Hagatna weather in September.
March and October share similar temperature ranges, with both months featuring minimum temperatures around 25°C (77°F) and average highs of 28°C (83°F) in March and 29°C (85°F) in October. However, October experiences significantly more rainfall, with a staggering 356 mm (14.0 in) of precipitation over 29 days, compared to March's 53 mm (2.1 in) over just 15 days. Interestingly, humidity levels remain relatively high in both months, at 84% in March and 80% in October, contributing to a warm, tropical feel throughout. For more details on October weather, check out Hagatna weather in October.
March and November both experience warm temperatures, with March slightly cooler, averaging 27°C (81°F) compared to November's 28°C (82°F). However, November is typically wetter, receiving 202 mm (8.0 in) of precipitation over 26 days, while March only experiences 53 mm (2.1 in) across 15 days. Humidity levels remain relatively high in both months, with March at 84% and November at 81%, making the air feel quite tropical. For a detailed look at November's weather, check out Hagatna weather in November.
In comparing the weather of March and December, both months feature warm temperatures with average highs around 27°C (81°F) to 29°C (84°F). However, December tends to be slightly warmer with a maximum temperature of 29°C (84°F) compared to March's 28°C (83°F). Precipitation levels also differ significantly; December is notably wetter, receiving 105 mm (4.1 in) over 22 days, while March sees less rain with only 53 mm (2.1 in) spread across 15 days. Both months maintain consistent humidity levels at 84%, contributing to the tropical feel of the region. For more detailed information, you can check out Hagatna weather in December.
As March unfolds in Hagatna, the weather welcomes a delightful transition marked by warm temperatures and increased humidity. With an average temperature hovering around 27°C, the balmy days provide a perfect backdrop for outdoor activities, although the 15 rainy days remind residents and visitors alike that brief showers are part of the experience. Compared to the preceding months, March encapsulates a blend of warmth coupled with frequent rainfall, making it a unique time to witness the lush landscapes of Guam. To dive deeper into what Hagatna has to offer throughout the year, explore Hagatna Climate.