Last updated: August 31, 2025
January in Greymouth, New Zealand, presents a delightful blend of warm temperatures and refreshing rainfall. With maximums reaching 26°C (80°F) and a pleasant average around 16°C (62°F), visitors can enjoy the outdoors despite the humidity lingering at 81%. The month experiences about 15 days of rain, accumulating to 202 mm (7.9 in), offering a lush backdrop to the stunning coastal scenery. Whether you're hiking through the majestic landscapes or savoring the local culture, Greymouth's January weather sets the stage for memorable experiences.
In Greymouth, New Zealand, January heralds the peak of summer, showcasing an appealing range of temperatures. With nighttime lows averaging around 7°C (45°F) and pleasant daytime highs reaching up to 26°C (80°F), the month offers a comfortable climate perfect for outdoor adventures. As the season progresses into February, the warmth slightly intensifies, peaking at 28°C (83°F), before gradually tapering off in March and April. Notably, the transition from January's vibrant heat to the cooler autumn months is marked by a steady drop in temperatures, highlighting the region’s temperate maritime climate. Overall, January stands out as a delightful time to experience the natural beauty of Greymouth, perfectly balancing warmth and cooling ocean breezes.
January in Greymouth, New Zealand, showcases a significant precipitation total of 202 mm (7.9 in), spread across 15 rainy days. This month sets the tone for the wetter season, as it is followed by February's drop to 175 mm, suggesting a slight reprieve before the rainfall picks up again. As the year progresses, precipitation increases steadily, peaking in July with 251 mm (9.9 in). Notably, the number of rainy days fluctuates, with August experiencing the highest at 20 days, hinting at a potential trend of more persistent rain in the winter months. Overall, January acts as a precursor to the dramatic and consistent rainfall typical of Greymouth's climate, illustrating the region's reputation for lush landscapes fed by its generous precipitation.
In January, Greymouth, New Zealand, experiences a relatively high humidity level of 81%, setting the tone for the month ahead. As summer transitions into autumn, humidity slightly decreases to 79% in February before stabilizing at 81% in March. Yet, as the seasons shift, a noticeable increase occurs, peaking at 87% during the winter months of May through July. Following this, a gradual decline is observed from August to December, where humidity levels hover around the mid-80s. This consistent pattern illustrates Greymouth's distinct humid climate, influenced by its coastal location, and highlights the region's lush, verdant landscapes typical of higher humidity levels.
In January, Greymouth experiences an intense UV Index of 13, placing it in the extreme exposure category with a quick burn time of just 10 minutes. This trend of elevated UV levels continues into February, maintaining the same index and burn time. As the seasons shift, there's a noticeable decrease in UV intensity come March, where the index drops to 9 and the category becomes very high, allowing for a slightly longer safe exposure of 15 minutes. The UV levels further decline through the autumn and winter months, reaching a low of 2 in June and July, consistent with a longer safe exposure time of 45 minutes. However, October and November see a rebound in UV strength, climbing back to very high levels before the year closes with a return to extreme conditions in December. For those planning outdoor activities, it's essential to stay informed about these fluctuations in UV levels, particularly during the summer months. For more details, check out the Greymouth UV Index.
UV Risk Categories
In January, Greymouth basks in approximately 247 hours of sunshine, setting the stage for a vibrant summer. As the month transitions into February, the sunshine peaks with 279 hours, enticing locals and visitors alike to explore the stunning landscapes. However, as autumn approaches in March with 244 hours, a slight decline begins, continuing through the cooler months of April at 210 hours and May with 181 hours. The trend of diminishing sunlight persists into June, where the city receives only 163 hours, the lowest of the year. Thankfully, the sunshine starts to make a comeback in the latter half of the year, with July offering 177 hours and gradually increasing to 194 hours in August. As the year draws to a close, the days of sunlight begin to soar once again, culminating in a dazzling December with 302 hours, reminding us of Greymouth's charming resilience throughout the seasons.
In Greymouth, New Zealand, January offers a 33% chance of sunny weather, aligning closely with the average for both March and April. This slight variance indicates that while summer may not guarantee clear skies every day, there's still a decent opportunity for sunshine. Interestingly, as the summer months progress into February, the likelihood of sun rises to 35%, suggesting that the sun is more likely to shine brighter as the summer deepens. The trend continues with a peak chance in May at 38%, before gradually oscillating back down as autumn approaches. Overall, those looking to soak up the sun in Greymouth should consider January a promising start to the year, with a fair chance of enjoying sunny days.
In January, Greymouth basks in 14 hours of daylight, making it the peak of the summer season and perfect for outdoor adventures. As the month transitions to February, daylight slightly diminishes to 13 hours, a gentle reminder of the approaching autumn. By March, daylight reduces further to 12 hours, setting a clear trend toward shorter days. This decrease continues through April and May, where sunshine hours drop to 10 hours and 9 hours, respectively, as winter approaches. Interestingly, from June to July, daylight remains constant at 9 hours, indicating a steady period of shorter days during the coldest months. However, as winter fades, Greymouth gradually welcomes back the sun; by August, daylight increases to 10 hours, and the trend continues upward, reaching 14 hours by November and peaking again at 15 hours in December. This cyclical pattern not only defines the seasons but also highlights the beauty of Greymouth’s changing days throughout the year.
In January, the winds in Greymouth, New Zealand, are generally mild, with an average speed of 2.6 m/s (6 mph), slightly higher than those in February and March, which both settle at 2.2 m/s (5 mph). As the months progress toward autumn, a subtle decline in wind speeds is evident, dipping to 2.0 m/s (5 mph) in April. However, a notable uptick occurs in September, where gusts rise to 3.1 m/s (7 mph), marking the windiest point of the year. Following this peak, the wind speeds moderate again in October, but reignite with a close to January's levels in November and December, creating a dynamic yet gentle breeze that dances through the coastal town. This rhythmic ebb and flow of winds reflects Greymouth's unique climatic charm, where each season brings its own gentle whispers.
Weather in Greymouth varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Greymouth, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather between January and February, both months exhibit similar temperature ranges, with February enjoying a slightly warmer average at 17°C (62°F) compared to January's 16°C (62°F). February also records a higher maximum temperature of 28°C (83°F) versus January's 26°C (80°F), indicating a gradual warming trend as summer progresses. Precipitation is somewhat lower in February at 175 mm (6.9 in) over 13 days, compared to January's 202 mm (7.9 in) over 15 days, reflecting a slight decrease in rainy days and overall moisture. Humidity remains comparable, with February at 79% and January at 81%. For a more detailed look at February weather in this coastal region, check out Greymouth weather in February.
In January, the weather in Greymouth is characterized by a warm average temperature of 16°C (62°F), with daytime highs reaching up to 26°C (80°F). The month experiences significant rainfall, with 202 mm (7.9 in) over approximately 15 days and maintaining a high humidity level of 81%.
In comparison, March shows a similar average temperature of 16°C (61°F), but with slightly cooler maximum temperatures peaking at 24°C (76°F). The precipitation increases to 213 mm (8.4 in), also spread across about 15 days, while humidity remains constant at 81%.
For more detailed insights into March weather patterns, you can visit Greymouth weather in March.
In comparing January and April weather, January typically enjoys warmer temperatures, with averages ranging from a minimum of 7°C (45°F) to a maximum of 26°C (80°F), while April’s temperatures are cooler, seeing a minimum of 2°C (36°F) and a maximum of 22°C (72°F). Both months experience significant rainfall, with January receiving 202 mm (7.9 in) and April slightly higher at 217 mm (8.5 in), although both months see precipitation on approximately 15 days. Additionally, humidity levels are relatively similar, with January at 81% and April at 84%, indicating a consistently damp climate. For those looking for more specific April weather insights, you can explore Greymouth weather in April.
When comparing the weather in January and May, we observe notable differences. January boasts a more favorable temperature range, with minimums around 7°C (45°F) and maximums reaching 26°C (80°F), resulting in an average of 16°C (62°F). In contrast, May experiences cooler temperatures, with minimums falling to 0°C (33°F) and maximums peaking at 19°C (67°F), leading to an average of 11°C (52°F). Additionally, May sees slightly more precipitation, totaling 238 mm (9.4 in) over 16 days, compared to January’s 202 mm (7.9 in) over 15 days. The humidity also increases in May, reaching 87% compared to January's 81%. For more detailed information, you can check Greymouth weather in May.
In comparing the weather between January and June, January experiences significantly warmer temperatures, with a minimum of 7°C (45°F) and an average of 16°C (62°F), reaching a maximum of 26°C (80°F). In contrast, June brings much cooler conditions, with temperatures dipping to a minimum of 0°C (33°F) and averaging 9°C (48°F), peaking at 18°C (65°F). Additionally, January sees higher precipitation levels at 202 mm (7.9 in) over 15 days, while June has lower rainfall at 134 mm (5.3 in) across 12 days. The humidity is slightly higher in June at 87% compared to January's 81%. For a more detailed look, you can check out Greymouth weather in June.
In January, Greymouth experiences relatively warmer weather, with average temperatures ranging from a minimum of 7°C (45°F) to a maximum of 26°C (80°F). The month sees about 202 mm (7.9 in) of precipitation over 15 days, accompanied by a humidity level of 81%. In contrast, July brings cooler conditions with average temperatures ranging from 0°C (33°F) to a maximum of 15°C (60°F). The town receives more rainfall in July, totaling 251 mm (9.9 in) across 16 days, and experiences a higher humidity of 87%. For more detailed information, check out Greymouth weather in July.
When comparing the weather in January and August, distinct differences emerge. January boasts a milder average temperature of 16°C (62°F), with maximums reaching up to 26°C (80°F), while August presents a much cooler average of just 9°C (49°F), with highs only reaching 17°C (63°F). Additionally, January experiences less precipitation, totaling 202 mm (7.9 in) over 15 days, compared to August, which sees 237 mm (9.3 in) across 20 days. Humidity remains relatively high in both months, with January at 81% and August slightly higher at 85%. For a closer look at August's weather specifics, check out Greymouth weather in August.
January and September present contrasting weather patterns. In January, the temperatures range from a minimum of 7°C (45°F) to a maximum of 26°C (80°F), with an average of 16°C (62°F). This month averages 202 mm (7.9 in) of precipitation, occurring over about 15 days, and maintains a humidity level of 81%. In stark contrast, September experiences much cooler conditions, with temperatures ranging from 0°C (32°F) to a maximum of 18°C (64°F), averaging at 10°C (50°F). It also sees increased precipitation, totaling 262 mm (10.3 in) over approximately 17 days, along with a slightly higher humidity level of 85%. For more details about September weather, please visit Greymouth weather in September.
In January, Greymouth experiences milder temperatures with a minimum of 7°C (45°F) and an average high of 26°C (80°F), making it the warmest month of the year. In contrast, October brings cooler conditions, with temperatures ranging from a minimum of 2°C (36°F) to a maximum of 20°C (68°F). Precipitation is also more abundant in October, with 231 mm (9.1 in) over 20 days compared to January's 202 mm (7.9 in) over just 15 days. The humidity slightly increases in October to 84%, compared to January’s 81%. For a closer look at the October weather in Greymouth, visit Greymouth weather in October.
In comparing the weather between January and November, January generally experiences warmer temperatures, with averages ranging from a minimum of 7°C (45°F) to a maximum of 26°C (80°F), while November sees slightly cooler averages from 4°C (40°F) to 23°C (74°F). Precipitation levels are higher in November, with 257 mm (10.1 in) recorded over 16 days, compared to January's 202 mm (7.9 in) over 15 days. Humidity remains relatively consistent between the two months, with January at 81% and November slightly higher at 82%. For more detailed information, you can check out Greymouth weather in November.
In comparing the weather between January and December, it is evident that both months experience mild average temperatures, hovering around 16°C (61°F). However, January tends to be slightly warmer with maximum temperatures reaching 26°C (80°F), compared to December's 24°C (75°F). Precipitation levels are higher in December, with 256 mm (10.1 in) recorded over 17 days, while January sees a decrease to 202 mm (7.9 in) over 15 days. Humidity levels are also marginally lower in January at 81%, compared to December's 84%. For more details, you can check Greymouth weather in December.
As January unfolds in Greymouth, it brings warmer temperatures that stand out compared to other months, with the average reaching a pleasant 16°C (62°F) and peaks often hitting 26°C (80°F). However, this warmth comes with increased humidity and a significant amount of rainfall, totaling 202 mm (7.9 in) over about 15 days, resulting in a distinctly damp atmosphere. While the lush surroundings flourish under these conditions, visitors should be prepared for occasional showers, which contrast sharply with the cooler and drier months of the year. For a deeper dive into what the climate looks like throughout the year, explore Greymouth Climate.