April Weather in Blenheim, New Zealand

Last updated: August 31, 2025

April in Blenheim, New Zealand, showcases a mild climate characterized by a maximum temperature of 22°C (71°F) and an average of 13°C (56°F), making it a pleasant time to explore the region. Early mornings can bring a chill, with minimum temperatures dropping to 4°C (39°F), so layering is advisable. The month sees moderate rainfall, totaling 98 mm (3.9 in) over 8 days, contributing to the lush greenery that defines this picturesque area. With humidity levels at 80%, Blenheim's April weather offers a refreshing experience, perfect for enjoying outdoor adventures and the stunning landscapes that surround the region.

April Temperature in Blenheim

In April, Blenheim experiences a noticeable transition as autumn settles in, with temperatures dipping to a minimum of 4°C (39°F) and reaching a comfortable maximum of 22°C (71°F). The month showcases an average temperature of 13°C (56°F), marking a shift from the warmer summer months of January through March. This gradual cooling is evident as April's nights grow chillier, contrasting with the mild temperatures earlier in the year. As the landscape transforms with vibrant autumn colors, the crisp air invites locals and visitors alike to enjoy outdoor activities amidst the stunning scenery, making it a lovely time to explore the region.

April Weather in Blenheim: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Blenheim, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Blenheim, April typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec636360555248464850535760
Data source: Temperature data for Blenheim generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

April Precipitation in Blenheim

April in Blenheim, New Zealand, stands out for its significant increase in precipitation, with 98 mm (3.9 in) of rain recorded over eight days, making it one of the wetter months of the year. This marks a noticeable rise from the previous months, particularly March, which saw a similar rainfall of 66 mm (2.6 in) but over fewer days. As autumn sets in, the transition towards the wetter winter months becomes apparent, highlighting April as a key month in the region's precipitation pattern. Following April, May dips slightly to 76 mm (3.0 in), hinting at the seasonal fluctuations typical of Blenheim's climate.

April Precipitation Trends in Blenheim

The chart displays monthly precipitation patterns in Blenheim, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Blenheim, April typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec4167669876779773827681101
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

April Humidity in Blenheim

In April, Blenheim, New Zealand, experiences a slight increase in humidity, peaking at 80%—a subtle shift from the consistent 79% seen over the previous three months. This rise marks the beginning of a trend toward higher humidity levels as the region transitions into winter. By May, the humidity escalates further to 84%, signaling the onset of dampness characteristic of the colder months. The gradual increase in humidity from April onward not only influences the local climate but also prepares residents for the more humid conditions that will dominate the winter season, with levels reaching 86% in both June and July. As the year progresses, it’s clear that April serves as a pivotal point, bridging the stability of summer to the moisture-laden atmosphere of winter.

April Average Humidity in Blenheim

This chart illustrates the average monthly humidity levels in Blenheim, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Blenheim is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%79%79%80%84%86%86%83%83%82%82%81%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Blenheim

As we dive into April, Blenheim experiences a UV Index of 7, placing it in the high exposure category with a recommended burn time of 25 minutes. This marks a gradual decline from the extreme levels seen in the summer months of January and February, where the UV Index soared to 13 with burn times as short as 10 minutes. While the UV intensity becomes more manageable in April compared to the earlier months, it's still essential to remain mindful of sun protection. Following this trend, May will offer a further reduction, dropping to a UV Index of 4, transitioning us toward the cooler months. For more detailed information on UV levels throughout the year in Blenheim, visit Blenheim UV Index.

Maximum UV Index Levels in Blenheim for April

The chart shows the monthly maximum UV Index (UVI) for Blenheim in April, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In April, the maximum UV index in Blenheim typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1313974224691113
Data source: Blenheim April UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

April Sunshine in Blenheim

In Blenheim, New Zealand, April experiences a notable shift as it welcomes the gentle embrace of autumn. With 242 hours of sunshine, it marks a decrease from the sun-drenched summer months of January and February, which bask in over 300 hours of radiant light. As the seasons transition, April sits comfortably between the late summer glow and the cooler, cloudier days of winter, leading to a gradual decline in sunlight compared to the preceding months. Despite this drop, the bright days of November and December loom on the horizon, promising a return to luminous afternoons. Observing these trends reveals how Blenheim gracefully balances warmth and light throughout the year, setting the stage for the rich harvests that follow.

Monthly Sunshine Duration in Blenheim: April Highlighted

The April sunshine duration represents the total number of hours Blenheim experiences direct sunlight during the month of April, excluding cloudy or obstructed periods. This chart compares the sunshine duration of April with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec300h306h289h242h220h181h199h233h263h297h320h351h
Data source: Blenheim April Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Blenheim During April

In Blenheim, New Zealand, April brings a 50% chance of sunshine, making it one of the more promising months for clear skies. This month stands out as it holds steady in the middle of the year's sunshine spectrum. Following a trend of decreasing sunny days from the peak in January (55%) to the low of October (31%), April marks a slight rebound, reminiscent of the transitional months before winter settles in. With a likelihood of sunny days that approaches the figures seen in September (also 50%), April is an excellent time for enjoying the outdoors, especially as the weather starts to shift toward cooler months. Whether you’re planning a picnic or a stroll through the vineyards, the sun is likely to make a comfortable appearance this time of year.

Percentage of Sunny Days in April in Blenheim

The chart illustrates the percentage of sunny days in Blenheim throughout the year, with April highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Blenheim experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec55%46%43%50%48%42%45%45%50%31%35%34%
Data source: Blenheim April chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Blenheim in April

As April arrives in Blenheim, New Zealand, the daylight begins to wane, offering approximately 10 hours of bright sunshine—marking a noticeable decline from the longer days of summer. Following the peak of 14 hours in January, daylight hours consistently decrease through the autumn months, with March enjoying 12 hours before hitting the 10-hour mark in April. This trend continues into May, where daylight dips further to just 9 hours, creating a stark contrast to the vibrant, lengthy days enjoyed earlier in the year. As winter approaches, Blenheim settles into a rhythm of shorter days, gradually building back up as spring blooms later in the year.

Average Daylight Hours in Blenheim for April

The chart illustrates the variation in daylight duration in Blenheim throughout the year, with April highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec14h 46m13h 41m12h 19m10h 56m9h 47m9h 12m9h 29m10h 29m11h 48m13h 11m14h 26m15h 6m
Data source: Blenheim daylight hours, calculated by summing the hours between sunrise and sunset for each day.

April Winds in Blenheim

In April, Blenheim experiences a gentle shift in its breezy character, with an average wind speed of 3.9 m/s (9 mph). This marks a slight decline from the preceding months, highlighting a gradual easing of the warm summer winds. As autumn deepens, the overall trend reveals Blenheim's wind speeds typically dip in the cooler months, reaching their lowest in July. However, the transition into spring brings a resurgence in air movement, often seeing speeds spike as high as 5.2 m/s (12 mph) in September. The consistent patterns across the seasons not only shape the landscape but also add a dynamic element to Blenheim’s climate, enchanting residents and visitors alike with the evolving rhythms of nature.

Average April Wind Speed in Blenheim

The chart displays monthly wind speed patterns in Blenheim, with values for each month shown alongside April's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how April's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec4.54.34.13.9 m/s4.14.03.84.45.24.04.94.3
Data source: Blenheim April wind data, generated using information from the Copernicus Climate Change Service.

How April Weather in Blenheim Compares to Other Months

Weather in Blenheim varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Blenheim, focusing on differences in temperature, rainfall, humidity, and UV levels.

When comparing the weather in April and January, it’s clear that January tends to be warmer overall. January features minimum temperatures of 7°C (45°F) and averages around 17°C (63°F), reaching highs of 29°C (84°F). In contrast, April temperatures range from a minimum of 4°C (39°F) to an average of 13°C (56°F), with a maximum of 22°C (71°F). Additionally, January experiences significantly less precipitation at 41 mm (1.6 in) over about 6 days, while April sees nearly double that with 98 mm (3.9 in) across approximately 8 days, contributing to higher humidity levels in April at 80% compared to January’s 79%. For more specific information, you can check Blenheim weather in January.

When comparing the weather between February and April, February typically boasts warmer temperatures, with a minimum of 8°C (46°F) and an average of 17°C (63°F), peaking at 28°C (82°F). In contrast, April experiences cooler conditions, starting at a minimum of 4°C (39°F) and averaging 13°C (56°F), going up to a maximum of 22°C (71°F). February also sees less precipitation, with 67 mm (2.6 in) over 6 days, compared to April's 98 mm (3.9 in) over 8 days, making April slightly wetter. Notably, the humidity levels remain similar, with February at 79% and April at 80%. For more information on February's weather, you can check out Blenheim weather in February.

In comparing the weather between March and April, April tends to be slightly cooler with average temperatures ranging from a minimum of 4°C (39°F) to a maximum of 22°C (71°F), whereas March features a minimum of 7°C (44°F) and a maximum of 24°C (76°F). Precipitation increases in April, with 98 mm (3.9 in) recorded over 8 days, compared to March's 66 mm (2.6 in) over the same number of days. Humidity levels are similar, with April at 80% and March at 79%. For a more detailed look at March's weather, you can visit Blenheim weather in March.

April and May exhibit mild but distinct weather patterns. In April, temperatures range from a minimum of 4°C (39°F) to a maximum of 22°C (71°F), with an average of 13°C (56°F). The month experiences relatively high humidity at 80% and sees 98 mm (3.9 in) of precipitation over 8 days. In contrast, May brings slightly cooler temperatures, with a minimum of 1°C (35°F) and a maximum of 19°C (67°F), averaging 11°C (52°F). Although May has reduced precipitation at 76 mm (3.0 in) over the same number of rainy days, the humidity rises to 84%. For more detailed information, you can check Blenheim weather in May.

In comparing the weather of April and June, April typically boasts warmer temperatures, with an average of 13°C (56°F) and maximums reaching 22°C (71°F). In contrast, June experiences cooler conditions, with an average temperature of only 9°C (48°F) and maximums around 17°C (63°F). Both months see significant precipitation, with April receiving 98 mm (3.9 in) over 8 days and June bringing slightly less at 77 mm (3.0 in) across 10 days. Additionally, humidity levels are higher in June at 86%, compared to April's 80%. For more detailed insights on June weather, you can refer to Blenheim weather in June.

April and July present markedly different weather characteristics, though both months have similar levels of precipitation. In April, temperatures range from a minimum of 4°C (39°F) to a maximum of 22°C (71°F), resulting in a comfortable average of 13°C (56°F). In contrast, July sees cooler temperatures, with a minimum of 1°C (34°F) and a maximum of 15°C (59°F), resulting in a much lower average of 8°C (47°F). Additionally, humidity is higher in July at 86%, compared to 80% in April. While April experiences rainfall on 8 days, July has slightly more rainy days, totaling 12. For more insights on July weather, check out Blenheim weather in July.

In comparing the weather between April and August, April tends to be milder with average temperatures reaching 13°C (56°F) and a maximum of 22°C (71°F). In contrast, August presents cooler conditions, featuring an average temperature of 9°C (48°F) and a maximum of only 18°C (65°F). Precipitation in April is notably higher, with 98 mm (3.9 in) falling over 8 days, while August sees slightly less rain at 73 mm (2.9 in) over 10 days. Humidity levels are fairly similar, with April at 80% and August slightly higher at 83%. For more detailed insights, you can view the weather specifics at Blenheim weather in August.

April and September showcase distinct weather characteristics. In April, temperatures range from a minimum of 4°C (39°F) to a maximum of 22°C (71°F), with an average of 13°C (56°F). The month sees around 98 mm (3.9 in) of precipitation over 8 days, accompanied by a humidity level of 80%. In contrast, September experiences cooler temperatures, with lows at 1°C (34°F) and highs of 18°C (65°F), averaging 10°C (50°F). Precipitation is slightly lower in September at 82 mm (3.2 in) over 10 days, and humidity rises slightly to 83%. For more detailed information, you can check Blenheim weather in September.

In April, temperatures range from a minimum of 4°C (39°F) to a maximum of 22°C (71°F), with an average of 13°C (56°F). The month experiences about 98 mm (3.9 in) of rainfall over 8 days, and humidity levels are around 80%. In contrast, October sees cooler weather, with temperatures ranging from 2°C (36°F) to 20°C (69°F) and an average of 12°C (54°F). Although October has less rainfall at 76 mm (3.0 in) spread over 11 days, humidity slightly increases to 82%. For more detailed insights, you can check Blenheim weather in October.

In comparing the weather between April and November, both months exhibit mild temperatures, with November having a slightly higher average temperature of 14°C (57°F) compared to April's 13°C (56°F). April tends to have a broader temperature range, with maximums reaching up to 22°C (71°F), while November can peak at 24°C (75°F). Precipitation levels are relatively close, with April receiving 98 mm (3.9 in) across 8 days and November seeing a bit less at 81 mm (3.2 in) over 11 days. Humidity remains fairly constant, hovering around 80% in April and slightly increasing to 82% in November. For a more detailed look at November’s climate specifics, check out Blenheim weather in November.

April and December exhibit distinct weather patterns, with April experiencing slightly cooler temperatures, ranging from a minimum of 4°C to a maximum of 22°C, while December generally enjoys milder conditions, with temperatures ranging from 6°C to 25°C. Precipitation levels are somewhat comparable, with April receiving 98 mm across 8 rainy days and December recording 101 mm over 12 days, indicating a wetter month overall. Humidity remains high in both months, with April at 80% and December slightly higher at 81%. For more details on December weather, check out Blenheim weather in December.

Compare Blenheim's Climate with Cities Worldwide

Conclusion: What to Expect From April Weather in Blenheim

April in Blenheim brings a delightful transition into autumn, marked by milder temperatures that blend warmth with the crispness of fall. With maximums reaching a pleasant 22°C and minimums dipping to 4°C, this month uniquely balances comfort and coolness. Although the humidity is relatively high at 80%, the overall weather is less erratic than in other months, presenting fewer rainy days—with just 8 days of precipitation totaling 98 mm. This makes April a charming time to enjoy the unfolding colors of autumn. For more insights into Blenheim's beautiful climate throughout the year, explore Blenheim Climate.