Last updated: August 31, 2025
In Hamilton, New Zealand, January offers a delightful blend of warmth and occasional showers. The maximum temperature peaks at a comfortable 29°C (85°F), while the average settles at a pleasant 20°C (68°F), providing the perfect backdrop for summer activities. Despite the inviting climate, residents and visitors can expect about 56 mm (2.2 in) of rainfall over 6 days, resulting in a humidity level of around 75% that adds a touch of moisture to the air. This month is ideal for exploring the vibrant landscapes and enjoying the lush greenery that thrives under such conditions.
In January, Hamilton, New Zealand boasts a delightful climate, with temperatures ranging from a cool 8°C (47°F) at night to a balmy 29°C (85°F) during the day, making it the warmest month of the year. This summer staple holds steady with an average temperature of 20°C (68°F), providing the perfect backdrop for outdoor adventures. As the year progresses into February, the temperatures remain consistent, mirroring January’s warmth but dipping slightly in the mornings to 7°C (45°F). The transition into March sees a gradual drop in average temperatures to 18°C (65°F), and while daytime highs still reach 29°C (84°F), the nights become cooler, hinting at the approaching autumn. By April, the mercury falls further, with daytime highs of 24°C (75°F) and nighttime lows slipping to 4°C (39°F), marking a distinctly cooler trend that continues into the winter months. Thus, Hamilton's January temperatures not only highlight its summer charm but also signal the gentle shift toward the cooler seasons ahead.
In January, Hamilton, New Zealand experiences relatively mild precipitation, with a total of 56 mm (2.2 in) of rainfall spread across just 6 days. This marks the beginning of the year with lower wet weather compared to subsequent months. As summer advances into February, precipitation notably increases to 81 mm (3.2 in) over 9 days, showing a steady upward trend that continues through March and April, where rainfall peaks at 117 mm (4.6 in). The pattern suggests that while January offers a brief respite from heavier rains, it paves the way for a wetter landscape as the season progresses. The subsequent winter months show even more significant precipitation, marking a clear seasonal shift, with July and August often being the wettest, averaging over 130 mm each month. This overall trend highlights Hamilton's transition from a drier January to a season filled with abundant rainfall, shaping its lush, green landscapes.
In January, Hamilton, New Zealand, experiences a moderate humidity level of 75%, making it a vital part of the city's summer climate. As the year progresses, humidity remains relatively stable, dipping slightly to 73% in February and March before settling back at 75% in November. However, the trend shifts as winter approaches, with humidity rising to 81% in June and peaking at 82% in July, reflecting the dampness typical of those colder months. Interestingly, despite these winter highs, the overall humidity levels begin to decrease again as spring sets in, dropping gradually back down to 76% by October. This rhythmic fluctuation illustrates Hamilton's dynamic climate, characterized by its moderate humidity that persists throughout the year, shaping its lush, green environment.
In January, Hamilton, New Zealand experiences a searing UV Index of 14, categorized as extreme, which means a mere 10 minutes of sun exposure can lead to burns. This high level of UV radiation continues into February, maintaining the same index and burn time, marking this period as particularly hazardous for outdoor activities. As summer transitions to autumn in March, the UV Index drops to 10, classified as very high, and the burn time increases slightly to 15 minutes. April brings further relief with a UV Index of 7 and a burn time of 25 minutes, signaling a shift towards milder conditions. From May through July, a more moderate UV range of 3 to 4 emerges, allowing for a safer outdoor experience, although vigilance is still advised. However, as spring approaches in August and September, the index rises back to 5 and 7, respectively, indicating the need for sun protection once again. October sees a resurgence to a 10 index, while November and December herald the return of extreme conditions with UV values of 11 and 13, requiring a quick retreat to shade after just 10 minutes. This pattern underscores the importance of staying informed about the UV Index in Hamilton to ensure safety and enjoyment in the sun. For detailed UV forecasts, visit Hamilton UV Index.
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In Hamilton, New Zealand, January shines brightly with an impressive 273 hours of sunshine, setting the tone for a sun-kissed summer. As the year unfolds, February offers a gentle decline to 267 hours, while March follows closely with 261 hours, showcasing the lingering warmth. The transition into autumn sees a more pronounced drop, with April at 227 hours and May cooling down to 203 hours. June, the heart of winter, brings the least sunshine, dipping to just 175 hours. However, the days begin to lengthen again in July with 198 hours, gradually increasing through the winter months. By November, residents are greeted with an uptick, reaching 289 hours, and December culminates in a radiant finale with a remarkable 329 hours of sunshine, emphasizing the cyclical nature of light and warmth in this charming region.
In Hamilton, New Zealand, January boasts the highest likelihood of sunny weather, with a 47% chance of sunshine, making it a prime time for outdoor activities and enjoying the summer warmth. As the seasons transition, the probability of sunny days declines, dipping to 37% in February and maintaining similar levels through March and April at 40%. This trend continues into the cooler months, where chances hover around 32% to 39%, reflecting a more overcast climate. Notably, the sunniest month quickly shifts to October, which sees the least likelihood of clear skies at just 25%. Overall, it’s clear that while January shines as the crown jewel for sun seekers, Hamilton's weather offers varying degrees of brightness throughout the year.
In Hamilton, New Zealand, the daylight duration in January shines at a generous 14 hours, inviting residents to bask in the summer sun. As the month transitions to February, daylight slightly decreases, settling at 13 hours, signaling the gradual shift toward autumn. March brings an enticing 12 hours of light, while April holds at 11 hours, leading into the cooler months. By May, daylight wanes further to 10 hours, and both June and July see a minimal variation, each with 9 hours of daylight as winter sets in. However, as spring awakens, daylight begins to lengthen again in August, returning to 10 hours and gradually climbing back to 14 hours by December. This rhythmic pattern of daylight underscores the shifting seasons, with Hamilton's longest days occurring in the height of summer and gradually receding towards winter's lull.
In January, Hamilton, New Zealand experiences a gentle breeze with an average wind speed of 3.4 m/s (8 mph), setting the stage for a pleasant summer. The wind tends to ease slightly into February, dipping to 3.1 m/s (7 mph), but it remains relatively calm compared to the gustier months that lie ahead. As autumn approaches, March and April maintain a similar, tranquil feel with wind speeds hovering around 2.9 to 3.1 m/s. Notably, May sees a resurgence of wind, returning to 3.4 m/s (8 mph), aligning with a trend of increasing wind speeds as winter approaches. June and July consistently uphold this brisk atmosphere with averages of 3.4 m/s and 3.7 m/s respectively. The winds become more pronounced in late winter and early spring, peaking in September at 4.3 m/s (10 mph) before slightly tapering off in October and November. The year wraps up with December breezing back to 3.8 m/s (9 mph), reminding residents of Hamilton's unique climatic rhythm, where the wind plays a continuous, if subtle, role in the seasonal narrative.
Weather in Hamilton varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Hamilton, focusing on differences in temperature, rainfall, humidity, and UV levels.
January and February in Hamilton present a relatively mild climate, with both months showcasing similar average temperatures of 20°C (68°F). However, January experiences slightly warmer minimum and maximum temperatures, ranging from 8°C (47°F) to 29°C (85°F), compared to February's min of 7°C (45°F) and the same max of 29°C (85°F). Precipitation levels increase in February, with 81 mm (3.2 in) recorded over 9 days, compared to January's 56 mm (2.2 in) over 6 days. Additionally, February sees a marginally lower humidity level at 73%, while January holds at 75%. For more detailed information, you can visit Hamilton weather in February.
In January, Hamilton enjoys warm temperatures with a minimum of 8°C (47°F) and an average of 20°C (68°F), reaching a maximum of 29°C (85°F). The month experiences a moderate level of precipitation, totaling 56 mm (2.2 in) over about 6 days, with humidity hovering around 75%. In contrast, March presents slightly cooler temperatures, with a minimum of 7°C (45°F) and an average of 18°C (65°F), while still reaching a maximum of 29°C (84°F). March sees increased rainfall, totaling 94 mm (3.7 in) across 10 days, and humidity is slightly lower at 73%. For more detailed insights, check out Hamilton weather in March.
January and April weather in Hamilton exhibit distinct differences in temperature and precipitation. In January, temperatures are warmer, with a minimum of 8°C (47°F) and a comfortable average of 20°C (68°F), while April sees cooler temperatures, ranging from a minimum of 4°C (39°F) to an average of 15°C (60°F). January also has relatively lower precipitation at 56 mm (2.2 in) over about 6 days, compared to April's 117 mm (4.6 in) spread over 11 days. Additionally, humidity remains fairly consistent, with January at 75% and April slightly lower at 73%. For a more detailed overview of April weather, visit Hamilton weather in April.
In comparison to January, May experiences significantly cooler temperatures, with average highs of 22°C (71°F) compared to January's warmer average of 20°C (68°F). The minimum temperature in May drops to -2°C (29°F), while January's minimum is a mild 8°C (47°F). Additionally, May sees more precipitation, with 107 mm (4.2 in) over 11 days, compared to January's 56 mm (2.2 in) over just 6 days. Humidity levels are also slightly higher in May at 79% versus January's 75%. For more details on May weather in Hamilton, you can visit Hamilton weather in May.
In January, temperatures in Hamilton are quite warm, with minimums around 8°C (47°F) and maximums reaching up to 29°C (85°F), creating an average of about 20°C (68°F). The month experiences relatively low precipitation, totaling 56 mm (2.2 in) over about 6 days, and humidity is moderate at 75%. In contrast, June brings cooler weather, with minimum temperatures dropping to -2°C (29°F) and maximums capping at 20°C (68°F); the average temperature rests at 11°C (52°F). This month sees increased rainfall, with 104 mm (4.1 in) spread across 12 days, and humidity levels rise slightly to 81%. For a more detailed look at June's climate, you can visit Hamilton weather in June.
In January, Hamilton experiences a much warmer climate, with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 29°C (85°F), and an average of 20°C (68°F). The level of humidity is relatively high at 75%, but precipitation is moderate, with only 56 mm (2.2 in) of rainfall over six days. In stark contrast, July brings a cooler and wetter weather pattern, with temperatures dropping to a minimum of -3°C (27°F) and a maximum of 18°C (65°F), averaging just 10°C (50°F). During this month, precipitation increases significantly to 131 mm (5.1 in), falling over 13 days, and humidity rises to 82%. For more details, you can check Hamilton weather in July.
The weather in January and August presents a striking contrast. January features a much warmer climate, with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 29°C (85°F) and an average of 20°C (68°F). In contrast, August sees cooler temperatures, dropping to a minimum of -4°C (25°F) and averaging around 11°C (52°F), with a maximum of just 18°C (64°F). Additionally, January experiences relatively low precipitation of 56 mm (2.2 in) over 6 days, while August is wetter, with 149 mm (5.9 in) accumulated over 16 days, contributing to a higher humidity rate of 79%. For a detailed look at the weather conditions in August, you can visit Hamilton weather in August.
January and September showcase a stark contrast in weather. In January, temperatures range from a comfortable 8°C (47°F) at night to a warm 29°C (85°F) during the day, averaging around 20°C (68°F). The month experiences relatively low precipitation of 56 mm (2.2 in) spread over 6 days, with a humidity level of 75%. Conversely, September sees much cooler temperatures, with a minimum of 0°C (32°F), an average of 12°C (54°F), and a maximum of only 20°C (68°F). This month is also wetter, with 119 mm (4.7 in) of rain falling over 15 days, and a slightly higher humidity of 77%. For more insights on September weather, check Hamilton weather in September.
In comparing the weather between January and October, notable differences emerge. January experiences warmer temperatures, with a minimum of 8°C (47°F), an average of 20°C (68°F), and a maximum reaching 29°C (85°F). The month sees relatively low precipitation at 56 mm (2.2 in) over just 6 days, coupled with a humidity level of 75%. In contrast, October is cooler with temperatures ranging from a minimum of 3°C (37°F) to an average of 14°C (57°F) and a maximum of 22°C (72°F). This month also has higher rainfall, totaling 107 mm (4.2 in) across 14 days, and slightly elevated humidity at 76%. For more details on October weather, check out Hamilton weather in October.
January and November exhibit notable differences in weather patterns. In January, the temperatures range from a minimum of 8°C (47°F) to a maximum of 29°C (85°F), with an average temperature of 20°C (68°F). The month experiences 56 mm (2.2 in) of precipitation over about 6 days, while maintaining a humidity level of 75%. In contrast, November sees slightly cooler temperatures with a minimum of 6°C (43°F) and a maximum of 27°C (80°F), averaging 16°C (62°F). This month is wetter, with 87 mm (3.4 in) of rainfall spread over 12 days, yet also shares the same humidity level of 75%. For more details on November weather, you can visit Hamilton weather in November.
In January, temperatures in Hamilton range from a minimum of 8°C (47°F) to a maximum of 29°C (85°F), with an average of 20°C (68°F). Precipitation is relatively low at 56 mm (2.2 in) over about 6 days, coupled with a humidity level of 75%. In contrast, December experiences slightly cooler temperatures, with a minimum of 5°C (42°F) and a maximum of 27°C (81°F), averaging around 19°C (66°F). December also sees higher precipitation, measuring 112 mm (4.4 in) over 13 days, while humidity remains comparable at 74%. For more detailed information, you can check Hamilton weather in December.
January in Hamilton features warm, inviting temperatures, making it stand out from the cooler months that typically characterize New Zealand's seasons. With an average of 20°C (68°F), the month offers a pleasant climate for outdoor activities, though occasional rain showers—averaging 56 mm over about 6 days—can provide refreshing interludes. The humidity remains relatively high, around 75%, which is typical for summer in this region. As the sun shines down and the days stretch longer, January creates an atmosphere perfect for enjoying the vibrant sights and sounds of Hamilton. For more detailed insights on Hamilton’s climate throughout the year, check out Hamilton Climate.