Last updated: August 31, 2025
May in Porirua, New Zealand, welcomes the arrival of cooler temperatures, with a maximum of 17°C (64°F) and an average of 13°C (56°F), dipping to a minimum of 7°C (44°F). This month experiences significant rainfall, totaling 88 mm (3.5 in) over approximately 11 days, contributing to a notable humidity level of 84%. As the crisp autumn air settles in, residents and visitors alike can expect a blend of occasional showers and refreshing, brisk days, perfect for enjoying the picturesque landscapes that define this vibrant coastal city.
As May rolls into Porirua, New Zealand, a noticeable shift in temperatures heralds the arrival of winter. The month features a minimum temperature of 7°C (44°F), accompanied by a cool average of 13°C (56°F), peaking at a mild maximum of 17°C (64°F). This transition reveals a steady decline from the warmer autumn months, where April still boasted averages around 15°C (59°F). While May may feel brisk, it maintains a comfortable charm, inviting residents and visitors alike to enjoy the crisp air and stunning autumn foliage. As the temperatures drop slightly further into June, May serves as a gentle reminder of the changing seasons, setting the stage for the country's scenic winter landscapes.
May in Porirua, New Zealand, signals a transition into the cooler months, bringing with it an average precipitation of 88 mm (3.5 in) over 11 rainy days. This is a noticeable dip from April's heavier rainfall of 104 mm, yet still signifies a significant amount of moisture to nourish the landscape. As the weather patterns shift, May not only contributes to the overall increase in monthly precipitation from January’s modest 33 mm but also sets the stage for an even wetter June and July, which see averages soaring above 100 mm. The gradual rise in rainy days—from 6 in January to 11 in May—highlights a clear trend towards a wetter late-autumn period, making May a crucial month for both the environment and the community in Porirua.
In May, Porirua, New Zealand, experiences a notable rise in humidity, reaching 84%, which marks a gradual increase from 80% in April. As the seasons transition, this spike in moisture levels can be attributed to the colder months approaching. While January through March maintain a consistent humidity of 79%, the trend shifts as autumn sets in, paving the way for a more humid winter with June and July peaking at 86%. This pattern underscores a growing trend of increased humidity as the year progresses, creating a refreshing yet damp atmosphere that characterizes Porirua's early winter experience.
In May, Porirua experiences a moderate UV Index of 4, which allows for a safe outdoor enjoyment with a burn time of 30 minutes for most skin types. This is a notable shift from the extreme levels seen in the peak summer months of January and February, where the UV Index skyrocket to 13, demanding careful protection in as little as 10 minutes. As the cooler months approach, the UV Index gradually declines, with April reflecting a high level at 7 and prior months like March displaying a very high 9. May's moderate conditions signify a welcome respite, making it an ideal time for outdoor activities without the urgency of sun safety precautions felt earlier in the year. For additional insights on UV exposure levels throughout the year, explore more at Porirua UV Index.
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May marks a transition into the cooler months in Porirua, New Zealand, with sunshine hours dipping to 207 hours—a noticeable decline from the sun-soaked summer peak of January's 287 hours. As autumn settles in, daylight hours gradually decrease, reflecting the shift in seasons. Interestingly, May remains a charming month despite its reduced sunlight, serving as a prelude to the lighter days of spring ahead. Following May, June sees the least sunshine at 169 hours, yet the trend then begins to pick up again, culminating in the vibrant 336 hours of December. This rhythm of sunlight creates a captivating seasonal tapestry that locals and visitors alike have come to appreciate throughout the year.
In Porirua, New Zealand, May tends to bring a transition into cooler, cloudier weather, with the chance of sunny days dropping to 44%. This is a noticeable decrease compared to the sunnier summer months, where January enjoys a robust 61% likelihood of sunshine. As autumn settles in, May's sun probability reflects a broader trend of diminishing light, with only June recording a lower sunny forecast at 34%. This overall decrease in sunshine from April’s 53% to May highlights the shift towards winter, making those few sunny days in May feel all the more precious as the landscape shifts.
In Porirua, New Zealand, daylight duration reveals a captivating rhythm throughout the year. Starting with 14 hours of daylight in January, the days gradually shorten as summer transitions into autumn, with February and March seeing 13 and 12 hours, respectively. By April, daylight dips to 10 hours, and as May arrives, it further wanes to just 9 hours. This pattern continues into the heart of winter, with June and July also experiencing 9 hours of daylight. However, as winter recedes and spring approaches, daylight begins to rebound, with August witnessing a modest increase to 10 hours. September brings 11 hours, and by October, the days lengthen again to 13 hours. November and December see a surge in daylight, peaking at 15 hours, creating a bright and vibrant atmosphere to welcome the summer season. This cyclical pattern of diminishing and increasing daylight not only marks the changing seasons but also enriches the natural beauty of Porirua.
In Porirua, New Zealand, the month of May experiences an average wind speed of 7.4 m/s (17 mph), which is a slight increase from April's 7.1 m/s. As the seasons transition, wind speeds show an intriguing trend: starting from January, speeds remain relatively steady, averaging around 7 m/s until they peak in August at 8.1 m/s (18 mph). Following this short-lived spike, wind speeds typically drop off slightly in the cooler months of July and October, before ramping up again toward year-end with November's notable 8.3 m/s. The shifting patterns highlight Porirua's dynamic climate, where winds persistently dance between calm and robust breezes throughout the year.
Weather in Porirua varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Porirua, focusing on differences in temperature, rainfall, humidity, and UV levels.
May and January present distinctly different weather patterns. In May, temperatures range from a minimum of 7°C (44°F) to a maximum of 17°C (64°F), with an average of 13°C (56°F). This month also experiences more rainfall, totaling 88 mm (3.5 in) over 11 days, contributing to a higher humidity of 84%. In contrast, January offers warmer conditions with a minimum temperature of 11°C (52°F), an average of 17°C (62°F), and a maximum of 23°C (73°F). Additionally, the precipitation is significantly lower at 33 mm (1.3 in) over just 6 days, resulting in an overall humidity of 79%. For more details, check Porirua weather in January.
When comparing the weather in May and February, it's clear that February enjoys warmer temperatures, with a minimum of 12°C (54°F) and an average of 17°C (63°F), peaking at 22°C (72°F). In contrast, May is cooler, starting at a minimum of 7°C (44°F) and averaging 13°C (56°F), with a maximum of 17°C (64°F). February also experiences less precipitation, averaging 69 mm (2.7 in) over just 6 days, while May sees higher rainfall totals of 88 mm (3.5 in) over 11 days. Additionally, February has a lower humidity level at 79%, compared to May's 84%. For more details on February weather, visit Porirua weather in February.
In comparing the weather between March and May, we see notable differences in both temperature and precipitation. March enjoys slightly warmer temperatures, with averages reaching 16°C (61°F) and maximums of 20°C (69°F), while May's temperatures are cooler, averaging 13°C (56°F) with a maximum of 17°C (64°F). However, May experiences higher precipitation, averaging 88 mm (3.5 in) over 11 days compared to March's 76 mm (3.0 in) over 9 days. Additionally, May's humidity is notably higher at 84%, compared to March's 79%. For more detailed insights on March weather, visit Porirua weather in March.
In comparing the weather of May and April, we see that April tends to be slightly warmer, with an average temperature of 15°C (59°F) and a maximum of 19°C (67°F), compared to May's average of 13°C (56°F) and maximum of 17°C (64°F). Additionally, while April experiences a higher total precipitation of 104 mm (4.1 in) over 10 days, May sees a bit less rainfall at 88 mm (3.5 in) across 11 days. Humidity levels are also slightly higher in May at 84%, versus April's 80%. For more detailed insights on April weather, you can check Porirua weather in April.
May and June present a subtle shift in weather patterns, with both months experiencing mild temperatures. In May, the temperatures range from a minimum of 7°C (44°F) to a maximum of 17°C (64°F), averaging around 13°C (56°F), while June sees slightly lower temperatures, with a minimum of 7°C (45°F) and a maximum of 16°C (61°F), averaging 12°C (53°F). Precipitation increases slightly in June, with 101 mm (4.0 in) over 12 days compared to May's 88 mm (3.5 in) across 11 days. Humidity remains relatively high in both months, with May at 84% and June slightly higher at 86%. For more details on June weather patterns, you can check Porirua weather in June.
In comparing May and July weather, May tends to be slightly warmer with average temperatures reaching 13°C (56°F) and a maximum of 17°C (64°F), while July experiences lower averages of 11°C (52°F) and a maximum of 15°C (59°F). Both months see significant precipitation, but July has a bit more, with 108 mm (4.3 in) over 13 days compared to May's 88 mm (3.5 in) over 11 days. Humidity levels are relatively similar, with May at 84% and July slightly higher at 86%. For a more detailed look at July weather in Porirua, you can refer to Porirua weather in July.
May and August show some striking similarities in weather patterns, though there are subtle differences worth noting. In May, temperatures tend to be slightly warmer, with an average of 13°C (56°F) compared to August's average of 11°C (52°F). However, August experiences just a slightly lower minimum temperature of 6°C (43°F) compared to May's minimum of 7°C (44°F). Both months see similar precipitation levels, around 89 mm (3.5 in), over approximately 11-12 days, with humidity remaining relatively high in both months at around 83-84%. For a detailed look at the weather specifics during this time, you can refer to Porirua weather in August.
May typically experiences slightly warmer temperatures compared to September, with average temperatures around 13°C (56°F) and a maximum of 17°C (64°F) versus September's average of 11°C (52°F) and a maximum of 15°C (59°F). Precipitation levels are quite similar in both months, with May receiving 88 mm (3.5 in) over approximately 11 days and September recording 85 mm (3.4 in) over 12 days. Humidity levels remain high in both months, hovering around 84% in May and slightly lower at 83% in September. For more detailed September weather information, check Porirua weather in September.
In comparing the weather of May and October, we find that both months are relatively cool, but October tends to be slightly milder. In May, temperatures range from a minimum of 7°C (44°F) to a maximum of 17°C (64°F), with an average temperature of 13°C (56°F). On the other hand, October has a slightly lower average temperature of 12°C (55°F), with a maximum of 16°C (61°F) and a minimum of 6°C (44°F). While May experiences more precipitation at 88 mm (3.5 in) over 11 days, October sees less rain, totaling 72 mm (2.8 in) over the same number of days. Humidity levels are quite similar, with May at 84% and October at 82%. For a more detailed look at October's climate, check out Porirua weather in October.
May and November present a transition in weather patterns, with May generally being slightly cooler and wetter than November. In May, temperatures range from a minimum of 7°C to a maximum of 17°C, with an average of 13°C. This month sees 88 mm of precipitation over 11 days and a higher humidity level of 84%. In contrast, November features milder temperatures, starting from 9°C to a maximum of 18°C, and an average of 14°C. It also has lower precipitation at 73 mm over 10 days, with humidity at 82%. For more detailed information, you can visit Porirua weather in November.
When comparing the weather in May and December, we see that December tends to be slightly milder, with average temperatures ranging from a minimum of 10°C (51°F) to a maximum of 20°C (68°F), compared to May's lower averages of 7°C (44°F) to 17°C (64°F). Although both months experience a similar number of rainy days, December sees a bit more precipitation overall, with 101 mm (4.0 in) compared to May's 88 mm (3.5 in). Humidity levels are also comparable, with May at 84% and December at 81%. For more detailed information about December weather, you can visit Porirua weather in December.
As May rolls into Porirua, the weather takes on a distinct character, offering a noticeable transition from the milder conditions of earlier months. With average temperatures hovering around 13°C (56°F) and maximums reaching 17°C (64°F), the days become brisker, inviting layers into your wardrobe. Precipitation makes its presence known, with 88 mm (3.5 in) falling over approximately 11 days, contributing to a notably higher humidity level of 84%. This month not only marks the onset of cooler weather but also sets the stage for the lush greenery that defines Porirua's landscape. Embrace the fresh, crisp air while exploring what the region has to offer. For a deeper dive into weather patterns, check out Porirua Climate.