Last updated: August 31, 2025
In May, Nelson, New Zealand, welcomes the transition into winter with an average temperature of 11°C (53°F), where daily highs reach a comfortable 18°C (65°F) and lows dip down to 4°C (39°F). This month experiences a total precipitation of 148 mm (5.8 in), spread over 12 days, contributing to the lush, green landscapes the region is known for. With an average humidity of 84%, the air feels refreshingly crisp, making May a unique blend of cool, vibrant days and tranquil, rainy moments, perfect for those who appreciate the beauty of a changing season.
As May rolls into Nelson, New Zealand, the temperature dip signals the transition to cooler months. The average temperature settles at a modest 11°C (53°F), accompanied by a minimum of 4°C (39°F) during chilly nights and a peak of 18°C (65°F) on pleasant days. This month marks a noticeable shift from the warmer late summer days of January to April, where maximum temperatures were consistently over 20°C (68°F). In contrast, May's cooler air hints at the approaching winter, as temperatures inch downward toward June's brisk benchmarks. Nonetheless, the mild climate still allows for enjoyable autumn strolls, making Nelson a charming destination in May.
May in Nelson, New Zealand, marks a significant uptick in precipitation, with an average of 148 mm (5.8 in) of rain recorded over 12 days. This increase follows a steady rise from April's 143 mm, indicating a trend towards wetter conditions as autumn progresses. As the region transitions into winter, May's rainfall is notably higher than both January's 72 mm and February's 86 mm, reflecting a shift in weather patterns. This rainfall trend underscores the emergence of cooler, more temperate weather, paving the way for the heavier downpours characteristic of the winter months ahead. As the days grow shorter, the increased moisture not only nourishes the lush landscapes around Nelson but also sets the stage for the vibrant ecosystems that thrive in this unique environment.
As autumn transitions into winter, May in Nelson, New Zealand marks a noticeable increase in humidity, rising to 84%. This uptick reflects a gradual trend observed from the preceding months, where humidity levels started at 79% in January through March before creeping up to 80% in April. The rise to 84% in May signals the onset of winter's embrace, as it paves the way for the even higher levels of 86% experienced in June and July. Residents and visitors alike can anticipate a damp, refreshing shift in the air, characteristic of Nelson's unique climate, reinforcing the city's reputation for lush greenery and vibrant landscapes throughout the cooler months.
As May arrives in Nelson, New Zealand, the UV Index drops to a moderate 4, allowing for a more comfortable outdoor experience compared to the extreme levels seen in January and February. With a burn time of around 30 minutes, residents and visitors alike can enjoy outdoor activities with a bit more leeway, though it's still wise to take precautions against sun exposure. This trend of decreasing UV levels continues into June, where the index further declines to 2, signaling that winter is on its way. For those planning outdoor adventures, it's essential to stay updated on the Nelson UV Index to ensure safe sun practices throughout the changing seasons.
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May in Nelson, New Zealand, sees a gentle dip in sunshine compared to the bustling summer months, offering 214 hours of bright daylight. This transitional period signals the arrival of winter, following the sun-drenched days of January and February which boast 290 and 295 hours respectively. While May might be less radiant than the peak season, it still holds a charm with its soft daylight, serving as a prelude to the cooler months ahead. As the hours of sunshine gradually decline towards June’s 178 hours, the pattern showcases how Nelson’s climate gracefully shifts, inviting residents and visitors alike to appreciate the subtle beauty of autumn's embrace.
In Nelson, New Zealand, May demonstrates a 46% chance of sunny weather, making it a relatively bright spot in the early winter months. Following a promising April with a 50% chance of sunshine, May’s likelihood remains encouraging, albeit slightly lower. This trend reflects the transitional nature of the season, as the sunny disposition gradually tapers off with the arrival of winter, which sees lower probabilities of clear skies, particularly in June and July. Despite the decrease, May still offers a decent opportunity for sun-seekers to enjoy the lush landscapes of this beautiful region before the colder months set in.
In Nelson, New Zealand, daylight duration experiences a remarkable transformation throughout the year. Starting high in January with 14 hours of sunlight, the days gradually wane as February and March present 13 and 12 hours respectively. By April, the light diminishes further to 10 hours, leading into May, where the days shrink to 9 hours—the start of the winter months. This trend maintains a steady low through June and July, with daylight holding at 9 hours. However, as spring approaches in August, daylight inches back up to 10 hours, setting the stage for a gradual resurgence. By September, the days increase to 11 hours, and October welcomes a notable boost with 13 hours. Finally, November and December crown the year with 14 and 15 hours of daylight, respectively, creating a cycle of varying yet consistently shifting daylight that shapes the seasonal rhythms of the region.
In May, Nelson, New Zealand experiences a gentle breeze, with an average wind speed of 2.7 m/s (6 mph). This steady airflow mirrors the preceding months of April and March, indicating a consistent pattern as autumn transitions towards winter. Notably, May is part of a period where the wind speeds remain relatively low, contrasting with the slightly breezier conditions often felt as the year progresses into spring and summer. The winds begin to pick up slightly in June, foreshadowing the arrival of the more invigorating gusts of winter. As this tranquil month unfolds, residents and visitors alike can enjoy the calmness that May's weather brings, making it an ideal time for outdoor activities amid the stunning natural backdrop of Nelson.
Weather in Nelson varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Nelson, focusing on differences in temperature, rainfall, humidity, and UV levels.
When comparing the weather in May and January, we see notable differences in temperature and precipitation. May experiences cooler temperatures, with a minimum of 4°C (39°F) and an average of 11°C (53°F), while January boasts much warmer conditions, ranging from a minimum of 10°C (50°F) to an average of 18°C (64°F). Additionally, January sees significantly less precipitation, with 72 mm (2.8 in) over 8 days compared to May's 148 mm (5.8 in) over 12 days. The humidity is slightly higher in May at 84%, whereas January's humidity is at 79%. For a detailed look at January conditions, refer to Nelson weather in January.
When comparing the weather in May and February, it becomes clear that February typically offers warmer temperatures with a minimum of 9°C (49°F) and an average of 17°C (63°F), peaking at 25°C (77°F). In contrast, May experiences cooler conditions, with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 18°C (65°F) and an average of 11°C (53°F). Precipitation is more prevalent in May, totaling 148 mm (5.8 in) over 12 days, compared to February's 86 mm (3.4 in) over 8 days. Additionally, while humidity remains relatively high in both months, it is slightly elevated in May at 84%, versus February's 79%. For more specific details regarding February weather in Nelson, you can check Nelson weather in February.
In comparing the weather of May and March, we see distinct differences in temperature and precipitation. March features milder temperatures, with a minimum of 9°C (48°F) and a maximum of 23°C (73°F), resulting in a comfortable average of 16°C (61°F). In contrast, May is cooler, with minimum temperatures dipping to 4°C (39°F) and a maximum of 18°C (65°F), leading to a lower average of 11°C (53°F). Additionally, May experiences slightly higher rainfall, accumulating 148 mm (5.8 inches) over 12 days, compared to March's 124 mm (4.9 inches) over 11 days. The humidity levels are also higher in May at 84%, compared to 79% in March. For more detailed information on March weather, you can visit Nelson weather in March.
In comparing the weather of April and May, we see some notable differences. April boasts slightly higher temperatures, with an average of 14°C (57°F) and a maximum of 20°C (69°F), compared to May's average of 11°C (53°F) with a maximum of only 18°C (65°F). Precipitation levels are similar, with April receiving 143 mm (5.6 in) over 13 days, while May sees a slightly higher total of 148 mm (5.8 in) across 12 days. Additionally, April has a lower humidity at 80%, compared to May's more humid 84%. For a more detailed look at April weather, check out Nelson weather in April.
In comparing the weather from May to June, it’s clear that both months experience relatively cool temperatures, but May tends to be slightly warmer. May’s average temperature is 11°C (53°F) with a maximum of 18°C (65°F), whereas June sees a lower average of 9°C (49°F) and a maximum of 16°C (60°F). Precipitation is also reduced in June, with 76 mm (3.0 in) over 10 days compared to May's 148 mm (5.8 in) over 12 days. Humidity remains quite high in both months, slightly increasing from 84% in May to 86% in June. For more detailed information about June weather, you can visit the following link: Nelson weather in June.
May and July present distinct weather patterns, with May experiencing slightly milder temperatures and July being cooler overall. In May, the temperature ranges from a minimum of 4°C (39°F) to a maximum of 18°C (65°F), with an average of 11°C (53°F). In contrast, July sees temperatures dip further, with a minimum of 2°C (36°F), an average of 8°C (47°F), and a maximum of 14°C (57°F). Both months witness significant precipitation, with May totaling 148 mm (5.8 in) and July slightly higher at 165 mm (6.5 in), although both have around 12 rainy days. Humidity levels are similar, with May at 84% and July slightly higher at 86%. For a detailed look at July weather in the area, check out Nelson weather in July.
When comparing the weather in May and August, May tends to be slightly warmer with average temperatures ranging from a minimum of 4°C to a maximum of 18°C. In contrast, August experiences cooler temperatures, with averages between 2°C and 15°C. While both months are relatively wet, May sees more precipitation at 148 mm over 12 days, compared to August’s 130 mm spread across 14 days. Humidity levels are similar, with May at 84% and August slightly lower at 83%. For more detailed information, you can check Nelson weather in August.
May and September exhibit similar weather patterns, but notable differences emerge. In May, temperatures range from a minimum of 4°C (39°F) to a maximum of 18°C (65°F), with an average of 11°C (53°F). The month experiences considerable precipitation, totaling 148 mm (5.8 in) over approximately 12 days and maintaining a high humidity level of 84%. In contrast, September sees slightly cooler temperatures, with a minimum of 3°C (37°F), an average of 10°C (50°F), and a maximum of 16°C (62°F). Precipitation is also reduced, at 116 mm (4.6 in) across 11 days, with humidity slightly lower at 83%. For more specific insights on September weather, you can refer to this link: Nelson weather in September.
In comparing the weather between May and October, both months experience similar minimum temperatures of around 4°C (39°F), while October offers a slightly higher average temperature of 12°C (54°F) compared to May's 11°C (53°F). The maximum temperatures are also marginally warmer in October at 19°C (66°F) versus May's 18°C (65°F). Precipitation levels are relatively close, with May receiving 148 mm (5.8 in) over 12 days and October having a bit less at 120 mm (4.7 in) over the same number of days. Humidity is slightly lower in October at 82%, compared to May's 84%. For more details on October weather specifically, check out Nelson weather in October.
May and November present contrasting weather patterns. In May, temperatures range from a minimum of 4°C (39°F) to a maximum of 18°C (65°F), with an average of 11°C (53°F). The month experiences heavier rainfall, totaling 148 mm (5.8 in) over approximately 12 days, along with high humidity at 84%. In contrast, November features milder temperatures, with a minimum of 6°C (43°F) and a maximum of 23°C (74°F), averaging 14°C (57°F). Precipitation is slightly lower at 118 mm (4.7 in) spread across 13 days, and humidity remains relatively comfortable at 82%. For more detailed information, you can check Nelson weather in November.
May and December present distinct differences in weather, with May generally being cooler and wetter. In May, temperatures range from a minimum of 4°C (39°F) to a maximum of 18°C (65°F), with an average of 11°C (53°F) and humidity levels reaching 84%. The month also sees substantial precipitation, accumulating 148 mm (5.8 in) over about 12 days. In contrast, December brings milder temperatures, with a range from 8°C (47°F) to 24°C (76°F), averaging 16°C (61°F). Precipitation is slightly lower at 145 mm (5.7 in) over 13 days, with humidity at a more moderate 81%. For those interested in December conditions specifically, you can find more details here: Nelson weather in December.
As May rolls in, Nelson experiences a noticeable shift in weather compared to the milder months preceding it. With cooler temperatures averaging around 11°C and higher humidity levels reaching 84%, the transition to late autumn is palpable. The month also brings increased precipitation, with around 12 rainy days contributing to a total of 148 mm of rainfall, making it one of the wettest times of the year. This blend of cool air and moisture is a stark contrast to the idyllic warmth of summer, encouraging a cozy, reflective atmosphere in this charming seaside town. For a deeper dive into the climate of this beautiful region, check out Nelson Climate.