Last updated: January 18, 2025
Hamilton, the capital city of Bermuda, is characterized by a Dfb Köppen-Geiger climate classification, showcasing a temperate maritime climate. The city experiences a mild minimum temperature of 11°C (52°F) in March, which gradually warms to an average of 22°C (73°F) throughout the year. The warmest month is September, where temperatures can peak at a maximum of 29°C (84°F). This climatic profile not only affects local weather patterns but also influences the natural ecosystem and lifestyle of Hamilton's residents.
In Hamilton, Bermuda, temperature patterns exhibit distinct seasonal characteristics throughout the year. The year begins with mild winters, as January and February showcase minimums around 12°C to 13°C (54°F to 56°F) and average highs of 19°C (66°F). March begins the transition to spring, bringing slightly cooler temperatures with temperatures dipping to a minimum of 11°C (52°F). As spring progresses into summer, May to August experiences a noticeable rise in warmth, with daytime averages climbing from 22°C (71°F) in May to 27°C (81°F) in August, alongside maximum temperatures reaching 29°C (84°F). September continues the summer trend, maintaining warm conditions before a gradual cooldown in October and November, where temperatures return to the mid-range of 21°C to 25°C (70°F to 76°F). The year wraps up with mild winters again in December, where temperatures hover around 16°C to 20°C (61°F to 69°F), highlighting Hamilton's temperate maritime climate and its inviting warmth year-round.
Hamilton experiences a temperate climate with monthly temperatures ranging from a minimum of 11°C (52°F) in March to a maximum of 29°C (84°F) in September. For more detailed information on Hamilton's climate, you can visit monthly temperatures in Hamilton.
Precipitation in Hamilton, Bermuda, showcases a distinct seasonal pattern, with the highest rainfall typically occurring in the late fall and early winter months. January and February receive considerable precipitation, measuring 116 mm (4.6 in) and 104 mm (4.1 in), respectively, and this trend continues into March with a peak of 136 mm (5.4 in). The month of November also stands out, recording 144 mm (5.7 in), making it one of the wettest months of the year. Notable is the frequency of rainfall, particularly in July, which sees a significant uptick with 120 mm (4.7 in) over 19 days, indicating a mix of summer showers that contribute to the overall dampness.
Summer months, however, don’t solely dominate rainfall, as July and September each maintain precipitation levels over 130 mm (5.2 in). The rainfall pattern typically decreases going into the spring, with April and May exhibiting lower totals of 77 mm (3.0 in) and 74 mm (2.9 in), respectively. The number of rainy days fluctuates accordingly, with July recording the highest frequency at 19 days, while May sees the least, with only 7 days. Overall, Hamilton's precipitation profile reflects the region's tropical maritime climate, characterized by a healthy mix of wet and dry periods throughout the year, supporting its lush ecosystems and vibrant flora.
Sunshine duration in Hamilton, Bermuda, reveals a clear seasonal trend, with daylight hours steadily increasing from winter to summer. January starts the year with a modest 149 hours of sunshine, which gradually climbs to 216 hours in February. The transition to spring brings even more light, peaking in April as the city basks in 307 hours of sunshine. May marks the beginning of summer with an impressive 359 hours, showcasing the arrival of warm, sunny days that are characteristic of this coastal paradise.
The summer months deliver the pinnacle of sunshine, with July and August receiving 372 hours and 373 hours, respectively, making them the sunniest months of the year. However, as autumn approaches, there is a noticeable decline in daylight hours, with September dropping to 308 hours and October further decreasing to 283 hours. By the end of the year, the sunshine hours again diminish, with November receiving 227 hours and December at 218 hours. This fluctuating pattern highlights not only the joy of summer’s vibrant sunshine but also the gradual transition to shorter, although still pleasant, winter days in Hamilton.
The UV Index in Hamilton, Bermuda, illustrates a significant seasonal variation in solar radiation exposure, critical for residents and visitors alike. January starts with a moderate UV Index of 5, allowing for a burn time of 30 minutes for unprotected skin. As winter progresses into February, the UV Index rises to 7, signaling high exposure, with a reduced burn time of 25 minutes. March and April mark the transition towards summer, escalating to a very high UV Index of 9 and 10, respectively, where the burn time drops sharply to just 15 minutes.
Summer months present the most intense UV exposure, reaching an extreme level with a UV Index peaking at 12 in June and July, where unprotected skin can burn in a mere 10 minutes. This extreme exposure slightly diminishes in August but remains high at 11. As autumn approaches, the UV Index declines gradually, with September and October recording 10 and 9, respectively, while November and December return to moderate and high levels at 6 and 4. This data emphasizes the importance of sun protection, particularly during the summer months when the risk of UV-related skin damage is at its highest.
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In Hamilton, Bermuda, daylight duration reflects a consistent seasonal pattern, transitioning from shorter days in winter to longer hours during the summer months. January marks the year with about 10 hours of daylight, which gradually increases to 11 hours by February. This upward trend continues into March and April, where daylight extends to 12 hours. The lengthening days contribute to a vibrant spring atmosphere, setting the stage for the sun-drenched summer ahead.
As summer unfolds in June, daylight reaches its peak at 14 hours, providing ample sunlight for outdoor activities and enjoying the island's natural beauty. However, this extended daylight begins to taper off as the season transitions into autumn, with July and August maintaining 13 hours. By September, daylight decreases back to 12 hours, and by October, it further diminishes to 11 hours. The year concludes with 10 hours of daylight in both November and December, emphasizing the rhythmic cycle of light that characterizes Hamilton's climate.
Hamilton, Bermuda enjoys a temperate maritime climate characterized by mild winters and warm summers. Average temperatures range from a cool 19°C (66°F) in January to a warm 27°C (81°F) in August. The region experiences significant rainfall, particularly in November (144 mm), with drier months such as May (74 mm) and April (77 mm). Sunshine hours peak in the summer months, reaching up to 373 hours in August. For more detailed information, visit Hamilton climate.
In conclusion, Hamilton, Bermuda, offers a diverse climate and distinct seasonal variations that greatly influence the local environment and lifestyle. The region's temperate maritime climate is marked by moderately warm temperatures year-round, ample sunshine, and fluctuating UV exposure that peaks dramatically during the summer months. Insights into precipitation and daylight duration reveal a dynamic interplay between dappled sunlight and timely rains that foster the lush ecosystems and vibrant communities of the city. Understanding these climatic patterns not only enhances appreciation for Hamilton's natural beauty but also promotes informed decision-making for outdoor activities and sun safety, ensuring both residents and visitors can fully enjoy all that this picturesque destination has to offer throughout the year.