Last updated: August 31, 2025
In Whanganui, New Zealand, January brings a delightful summery climate characterized by a maximum temperature of 24°C (75°F) and an average of 18°C (64°F). The month enjoys a gentle warmth, tempered by cool nights with minimum temperatures around 11°C (52°F). With 61 mm (2.4 in) of rainfall over approximately 10 days, the humidity levels hover at a comfortable 79%, adding to the lush, vibrant scenery. This combination of warmth, occasional showers, and high humidity creates an ideal environment for outdoor activities and exploration of Whanganui's natural beauty.
In January, Whanganui basks in delightful summer warmth, with temperatures ranging from a gentle 11°C (52°F) at night to a pleasant 24°C (75°F) during the day. The average temperature hovers around 18°C (64°F), making it one of the most comfortable months of the year. As the season transitions into February, highs increase slightly, peaking at 26°C (79°F), while nighttime temperatures remain stable. This trend continues into March, where daytime temperatures gradually retreat to 23°C (74°F), but the evenings stay consistently mild. Overall, this summer period boasts strikingly pleasant weather, encouraging outdoor activities amidst the stunning natural beauty of New Zealand's Whanganui.
In January, Whanganui experiences a moderate level of precipitation, recording 61 mm (2.4 in) over approximately 10 days. This sets the stage for a shift in the weather pattern as the summer progresses, with February and March seeing increased rainfall, peaking in April at 143 mm (5.6 in) over 13 days. Notably, while January serves as the start of the wetter season, the subsequent months reveal a rising trend in both total rainfall and the number of rainy days, reaching a high of 16 days in both July and August. As the year transitions to its final months, the precipitation begins to moderate again, but December still delivers a significant 133 mm (5.2 in), emphasizing Whanganui's tendency for somewhat unpredictable weather. This cyclical pattern highlights a blend of dry spells and wetter interludes, characteristic of New Zealand's diverse climate.
In Whanganui, New Zealand, January sees an average humidity level of 79%, which is consistent with the preceding month, February. This steady humidity continues throughout the early months of the year, maintaining the same percentage until March. As autumn approaches, humidity begins a gradual climb, reaching 80% in April and increasing further through May and June, where it peaks at 86%. The trend indicates that winter months are significantly more humid, with July also holding onto that high level. As the year progresses into spring, humidity levels slightly decline but remain relatively high, averaging around 82% from October to December. This pattern reflects Whanganui's characteristic moisture, contributing to its lush landscapes and verdant surroundings.
In January, Whanganui experiences an exceptionally high UV Index of 13, categorized as extreme, with a quick burn time of just 10 minutes. This trend continues into February, emphasizing the need for vigilant sun protection during the peak summer months. As the seasons transition, March sees a slight dip to a very high index of 9, allowing for a slightly less pressing burn time of 15 minutes. However, as autumn approaches, both April and May present a more moderate risk, with indices dropping to 7 and 4, respectively, while extending burn times to 25 and 30 minutes. The UV levels continue to fluctuate, reaching 11 in November before cycling back to 13 in December, highlighting significant seasonal variations in UV exposure. For comprehensive information on UV levels year-round, visit Whanganui UV Index.
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In Whanganui, New Zealand, January shines bright with an impressive 277 hours of sunshine, setting a vibrant tone for the year. As we transition into February, sunshine hours climb to 288, offering even more moments to bask in the glow. However, as summer fades, March witnesses a slight dip to 268 hours, hinting at the approaching autumn. The decline continues into April with 229 hours, followed by May, which brings 207 hours as winter approaches. Yet, despite the gloomy winter months, July and August begin to creep back up, with 194 and 232 hours, respectively, reminding us of the sun's persistent presence. A notable surge occurs in November, reaching 303 hours, and December caps off the year with a dazzling 330 hours, showcasing the region's ability to warm up just in time for the holidays. This cyclical pattern reflects Whanganui's seasonal charm, with sunshine making a spirited return as the year unfolds.
In Whanganui, New Zealand, January boasts a 50% chance of sunny weather, making it one of the brightest months of the year. Following closely, February and March exhibit slightly lower probabilities at 46% and 48%, respectively, indicating that the summer season generally remains favorable for sunshine. However, as the weeks progress into autumn and winter, the likelihood of sun declines, dipping to 31% in June before gradually rising again in the spring months. This trend highlights January's position as a prime time for outdoor activities and sunny escapes, while also setting the stage for a dynamic shift in weather patterns as the year unfolds.
In Whanganui, New Zealand, January marks the peak of daylight, with a generous 14 hours illuminating the days, perfect for outdoor adventures and soaking up the summer sun. As the month transitions into February, daylight slightly diminishes to 13 hours, hinting at the impending shift towards autumn. March follows suit with 12 hours, as the days continue to shorten. This gradual decline persists through April, where daylight drops to 11 hours, before stabilizing at 9 hours from May to July, ushering in the cooler, darker winter months. As August arrives, daylight begins its gentle rebound to 10 hours, signaling the slow return of brightness. September and October see further increases, bringing back 11 and 13 hours respectively, while November and December close the year with a glorious 14 hours once again. This rhythmic pattern of light not only highlights the seasonal changes but also sets the stage for the vibrant cycles of life in Whanganui.
In Whanganui, January greets residents and visitors with a refreshing average wind speed of 6.0 m/s (13 mph), providing a lively respite from the summer heat. As the month progresses, the winds tend to soften slightly in February, dropping to 4.4 m/s (10 mph), inviting more tranquil outdoor activities. However, this gentle trend quickly picks up again, peaking in September at 7.1 m/s (16 mph), which heralds the arrival of spring. The winds remain relatively stable throughout the year, with most months hovering around the 6.0 m/s mark, except for notable spikes in May and August, both reaching 6.6 m/s (15 mph). This consistent wind pattern not only shapes the unique climate of Whanganui but also enhances its picturesque landscapes, making it an exciting destination for adventurers and nature lovers alike.
Weather in Whanganui varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Whanganui, focusing on differences in temperature, rainfall, humidity, and UV levels.
In January, the weather is mild with temperatures ranging from a minimum of 11°C (52°F) to a maximum of 24°C (75°F), accompanied by an average temperature of 18°C (64°F). The month experiences about 61 mm (2.4 in) of precipitation over 10 days, maintaining a humidity level of 79%.
In contrast, February sees a slight increase in temperature, with averages rising to 18°C (65°F) and maximums reaching 26°C (79°F), while the minimum remains stable at 11°C (53°F). However, precipitation levels rise to 79 mm (3.1 in) over 8 days, with humidity levels still hovering around 79%. For more detailed information, you can check Whanganui weather in February.
In January, the weather in Whanganui is generally warmer, with average temperatures ranging from 18°C (64°F) to a maximum of 24°C (75°F). The month experiences about 61 mm (2.4 in) of precipitation over 10 days, and the humidity remains relatively high at 79%. By contrast, March sees a slight drop in average temperature to 17°C (63°F), with maximum temperatures reaching 23°C (74°F). However, it is also characterized by increased precipitation, totaling 96 mm (3.8 in) over the same number of days. Despite these differences, humidity levels remain consistent at 79%. For more detailed information, check out Whanganui weather in March.
When comparing the weather in January and April, January tends to be warmer with average temperatures ranging from 18°C (64°F) to a maximum of 24°C (75°F), while April sees slightly cooler averages, with temperatures ranging from 15°C (60°F) to a maximum of 22°C (71°F). January experiences less rainfall, totaling 61 mm (2.4 in) over about 10 days, whereas April is noticeably wetter, with precipitation reaching 143 mm (5.6 in) over 13 days. Additionally, humidity levels are comparable, with January at 79% and April slightly higher at 80%. For more details, you can refer to Whanganui weather in April.
In comparing the weather between January and May, January tends to be slightly warmer, with average temperatures ranging from a minimum of 11°C (52°F) to a maximum of 24°C (75°F), while May sees cooler temperatures, with averages from a minimum of 7°C (45°F) to a maximum of 19°C (66°F). Moreover, January experiences less precipitation, averaging 61 mm (2.4 in) over about 10 days, compared to May’s higher rainfall of 88 mm (3.5 in) over approximately 11 days. Humidity levels are also noticeably higher in May at 84%, compared to 79% in January, making the latter month feel a bit more comfortable despite its warmth. For more detailed information about the weather in May, you can visit Whanganui weather in May.
In January, the weather is quite warm, with average temperatures ranging from a mild 18°C (64°F) to a max of 24°C (75°F), while precipitation is relatively low at 61 mm (2.4 in) over about 10 days, resulting in a humidity level of 79%. In contrast, June experiences cooler temperatures, with averages around 12°C (53°F) and a maximum of just 17°C (63°F), along with increased rainfall of 111 mm (4.4 in) spread across 15 days and higher humidity at 86%. For more detailed information, you can check Whanganui weather in June.
In January, the weather tends to be warmer with average temperatures ranging from a minimum of 11°C (52°F) to a maximum of 24°C (75°F), creating a pleasant climate for outdoor activities. With an average precipitation of 61 mm (2.4 in) over about 10 days, the moisture levels are relatively moderate, and the humidity averages around 79%. In contrast, July experiences cooler temperatures, with the minimum dropping to 5°C (41°F) and maximum reaching only 16°C (61°F). The month sees significantly higher rainfall at 118 mm (4.6 in) over approximately 16 days, along with increased humidity at 86%. Overall, the stark differences in temperature and precipitation highlight the contrasting seasonal climates in Whanganui. For more details, you can check out Whanganui weather in July.
In January, the weather in Whanganui is markedly warmer, with temperatures ranging from a minimum of 11°C (52°F) to a maximum of 24°C (75°F) and an average of 18°C (64°F). This month experiences relatively moderate precipitation, totaling 61 mm (2.4 in) over about 10 days, coupled with a humidity level of 79%. In contrast, August brings significantly cooler temperatures, with a minimum of 5°C (40°F), an average of 11°C (52°F), and a maximum of 16°C (61°F). August also sees increased precipitation at 120 mm (4.7 in), spread over 16 days, and slightly higher humidity at 83%. For more details on the weather during August, you can check Whanganui weather in August.
In comparing the weather patterns of January and September, it is evident that January enjoys milder temperatures, with a minimum of 11°C (52°F) and a comfortable average of 18°C (64°F), rising to a maximum of 24°C (75°F). In contrast, September experiences cooler conditions, featuring a minimum temperature of 6°C (42°F) and an average of only 11°C (53°F), topping out at a maximum of 17°C (62°F). Additionally, precipitation is higher in September, with 114 mm (4.5 in) falling over 14 days, compared to January’s 61 mm (2.4 in) spread over 10 days. The humidity levels also reflect the changes in seasonal weather, remaining slightly higher in September at 83% compared to January's 79%. For more details, check out Whanganui weather in September.
In January, the weather is generally warmer, with temperatures ranging from a minimum of 11°C (52°F) to a maximum of 24°C (75°F) and an average of 18°C (64°F). This month experiences less precipitation, totaling 61 mm (2.4 in) over about 10 days, with a humidity level of 79%. In contrast, October brings cooler temperatures, with a minimum of 7°C (44°F), an average of 13°C (56°F), and a maximum of 19°C (66°F). Rainfall increases in October, accumulating to 99 mm (3.9 in) over approximately 14 days, coupled with a slightly higher humidity of 82%. For more details on October weather, you can visit Whanganui weather in October.
In January, the weather is generally warmer, with average temperatures peaking at 24°C (75°F) compared to November's maximum of 20°C (69°F). January sees less precipitation at 61 mm (2.4 in) over about ten days, whereas November experiences more rainfall, totaling 85 mm (3.4 in) over thirteen days. Additionally, the humidity levels are slightly higher in November at 82%, compared to January's 79%. For more detailed information, check out Whanganui weather in November.
In comparing the weather between January and December, January boasts slightly warmer temperatures with a minimum of 11°C (52°F) and an average of 18°C (64°F), reaching a maximum of 24°C (75°F). In contrast, December features a slightly cooler minimum of 9°C (49°F) and a similar average of 17°C (63°F), peaking at 23°C (74°F). Additionally, January experiences less precipitation at 61 mm (2.4 in) over 10 days, while December sees a higher total of 133 mm (5.2 in) across 14 days. Notably, humidity levels are only marginally different, with January at 79% and December at 81%. For more detailed information, you can visit Whanganui weather in December.
January in Whanganui offers a delightful contrast to the cooler months, showcasing mild temperatures that reach a pleasant peak, allowing for enjoyable outdoor activities. With average highs around 24°C, the warmth welcomes visitors and locals alike, while the humidity levels at 79% add a subtle tropical feel to the air. While rain is not uncommon, with 10 days of precipitation bringing a total of about 61 mm, these showers often contribute to the region's lush landscapes rather than dampen spirits. Experience the vibrant essence of Whanganui in January, making it an ideal time to explore and enjoy its natural beauty. For detailed insights, check out Whanganui Climate.