Last updated: April 22, 2025
In April, the weather in Saint John, Canada showcases a blend of brisk temperatures and a touch of springtime warmth. The maximum temperature reaches a pleasant 13°C (55°F), while the average hovers around 4°C (40°F), offering a taste of the season’s shift. However, residents and visitors should prepare for cooler moments, as the minimum dips to -5°C (23°F). During this month, precipitation is significant, totaling 129 mm (5.1 in) over approximately 13 days, paired with a relative humidity level of 80% that contributes to an often damp atmosphere. Overall, April in Saint John is characterized by its unpredictable weather, balancing chilly days with hints of spring's arrival.
As April arrives in Saint John, Canada, the winter chill gradually gives way to the promise of spring. The average temperature rises to a comfortable 4°C (40°F), showcasing a significant shift from the harsh depths of winter, where January and February temperatures lingered around -4°C (26°F). While the minimum temperature in April dips to about -5°C (23°F), daily highs can reach a mild 13°C (55°F), mirroring the thaw and the blooming vibrancy of the season. This month marks a welcome transition, where the crisp, fresh air hints at the warmer days to come, setting the stage for the blossoming beauty of May and beyond.
April in Saint John, Canada, marks a significant uptick in precipitation, with average rainfall reaching 129 mm (5.1 in) over 13 days. This increase compared to March’s 88 mm (3.5 in) suggests that spring is definitely in full swing, ushering in a wetter season as the landscape begins to bloom. Following the pattern of early months, April's precipitation is notably higher than the preceding months, reinforcing a trend of escalating rainfall moving into the warmer seasons. As the weather transitions, residents can expect not only increased moisture but also the refreshing beauty that comes with vibrant spring growth.
In April, humidity in Saint John, Canada typically reaches 80%, marking a subtle decline from the preceding winter months, which hover in the low to mid-80s. This transitional month signifies the gradual shift toward drier spring conditions, as May experiences an even lower average of 78%. Despite this dip, humidity remains relatively high through the warmer months, with figures climbing back to the low 80s by late spring and lingering there into autumn. Overall, April serves as a key turning point, indicating a move toward more comfortable atmospheric conditions after the heavier, moisture-laden air of winter.
As April arrives in Saint John, Canada, residents and visitors need to be aware of the increasing intensity of the sun. The UV Index jumps to 7, indicating a high exposure category, with a burn time of just 25 minutes. This marks a significant rise from the preceding months, where UV levels were more moderate. As the season progresses, May and June will see the UV Index soaring even higher, with values peaking at 9 and 10 respectively. Such trends remind us to plan our outdoor activities with care and to take appropriate sun safety measures. For more details on UV exposure in Saint John, check out Saint John UV Index.
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April in Saint John, Canada, continues the trend of increasing sunshine hours that begins in the early months of the year. Following a gradual rise from 127 hours in January to 242 hours in March, April enjoys 228 hours of sunlight, marking a slight dip yet remaining robust compared to earlier months. This seasonal shift sets the stage for the forthcoming brightness of May, which boasts an impressive 280 hours of sunshine. As spring fully unfolds, residents can relish the vibrant days that lead into a summer filled with exceptional sunshine, peaking in August at 312 hours. The journey from the colder, darker winter months to the lively warmth of spring reveals a captivating transition in Saint John's climate, heralding the long, sun-soaked days of summer ahead.
April in Saint John, Canada, brings a modest 28% chance of sunny weather, reflecting a continuation of the winter cloud cover that lingers in early spring. This percentage mirrors February's likelihood, signaling that while many anticipate the warmth of spring, the transition from winter's grip can still be a bit dreary. Interestingly, March sees a notable leap to 50%, suggesting that as the season progresses, sunshine becomes more frequent. However, April's sun chances keep pace with the coolness of the month, leaving visitors and locals alike to hope that sunny days will follow closely as spring unfolds into May's more optimistic 39% likelihood.
As April arrives in Saint John, Canada, daylight begins to blossom, extending to an inviting 13 hours—a noticeable leap from the 11 hours of March. This month marks a turning point, as the length of daylight steadily increases, heralding the full embrace of spring. Following April, May continues the trend with an even brighter 14 hours of daylight, setting the stage for the sun-drenched days of summer. Conversely, during the chillier months, daylight wanes, dipping down to 9 hours in January and November, and to a mere 8 hours by December. Thus, April not only signifies a surge in light but also serves as a reminder of the changing seasons and the gradual return of warmth and vibrancy to Saint John.
As April arrives in Saint John, Canada, the wind begins to dance with a gentle grace, maintaining an average speed of 5.7 m/s (13 mph). This marks a slight decrease from March’s peak of 6.2 m/s (14 mph), signaling a transition as the chill of winter fades. Following the blustery gusts of early spring, April's winds remain relatively mild, setting the stage for a tranquil May. As the year progresses, wind speeds continue to decline, reaching their lowest point in the summer months of July and August, where they hover around 4.0 m/s (9 mph). This seasonal trend highlights the grave transformation of Saint John’s coastal winds, inviting a softer breeze as warmer weather approaches and nature reawakens.
The weather in Saint John changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of April's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Saint John and find detailed weather information for every month.
In comparing the weather of April and January, it's clear that April experiences milder temperatures, with average highs around 4°C (40°F) compared to January's chillier average of -4°C (26°F). However, both months can reach similar maximums, with January peaking at 13°C (56°F) and April at 13°C (55°F). April is noticeably more humid, with levels around 80%, while January's humidity sits slightly higher at 83%. Additionally, April tends to be wetter, receiving 129 mm (5.1 in) of precipitation over 13 days, compared to January's 107 mm (4.2 in) over 10 days. For more detailed information about January weather, visit Saint John weather in January.
April and February weather in Saint John display notable differences in temperature and precipitation. In April, the average temperature rises to 4°C (40°F), with a minimum of -5°C (23°F) and a maximum of 13°C (55°F), while February’s average temperature sits significantly lower at -3°C (26°F), experiencing a minimum of -20°C (-4°F) and a maximum of just 10°C (50°F). Additionally, April sees a slightly higher amount of precipitation, totaling 129 mm (5.1 in) over 13 days, compared to February’s 112 mm (4.4 in) over 12 days. Humidity levels remain relatively high in both months, with February at 84% and April at 80%. For more detailed information on February's weather, check out Saint John weather in February.
In comparing the weather between March and April, April generally experiences milder temperatures, with a minimum of -5°C (23°F) and an average of 4°C (40°F), while March is notably colder, with lows dropping to -17°C (2°F) and an average of -1°C (31°F). Although both months see a significant amount of precipitation, April brings more rainfall at 129 mm (5.1 in) over 13 days compared to March’s 88 mm (3.5 in) across 10 days. Humidity levels remain fairly similar, with April at 80% and March at 82%. For more detailed insights, visit Saint John weather in March.
In comparing the weather of April and May, there's a noticeable shift towards milder conditions. April sees colder temperatures with a minimum of -5°C (23°F) and an average of 4°C (40°F), while May enjoys a more temperate range, with a minimum of 1°C (33°F) and an average of 9°C (48°F). Although both months experience significant rainfall, April's precipitation totals are slightly higher at 129 mm (5.1 in) over 13 days, compared to May's 117 mm (4.6 in) over 12 days. Additionally, humidity levels are a touch lower in May at 78% compared to April's 80%. For more detailed information on May weather conditions, check out Saint John weather in May.
April and June present quite different weather patterns. In April, temperatures range from a chilly -5°C (23°F) to a mild 13°C (55°F), with an average of 4°C (40°F). This month also sees significant precipitation, with 129 mm (5.1 in) falling over 13 days and humidity levels around 80%. In contrast, June experiences much warmer conditions, with temperatures ranging from 4°C (39°F) to a pleasant 21°C (71°F) and an average of 13°C (56°F). Precipitation decreases slightly to 110 mm (4.3 in) over 11 days, while humidity remains relatively high at 82%. For more detailed information, you can check Saint John weather in June.
April and July present distinctly different weather patterns. In April, temperatures are cooler, with a minimum of -5°C (23°F) and an average of 4°C (40°F), while July warms up significantly, featuring a minimum of 11°C (51°F) and an average of 16°C (62°F). Additionally, April experiences higher precipitation, totaling 129 mm (5.1 in), compared to July's 92 mm (3.6 in), although both months see about 13 days of rainfall. Humidity levels are relatively similar, with April at 80% and July slightly higher at 84%. For a more detailed look at July weather, you can check Saint John weather in July.
April and August showcase distinct differences in weather patterns. In April, temperatures range from a chilly minimum of -5°C (23°F) to a mild maximum of 13°C (55°F), with an average temperature of around 4°C (40°F). The month is characterized by considerable precipitation, with 129 mm (5.1 in) falling over 13 days, alongside a high humidity level of 80%. In contrast, August offers a more comfortable climate, featuring min temperatures of 11°C (53°F) and max temperatures reaching up to 23°C (74°F), leading to an average of 17°C (63°F). Precipitation in August is lower at 89 mm (3.5 in) over 10 rainy days, and humidity remains slightly elevated at 82%. For a more detailed look at the August weather in Saint John, visit Saint John weather in August.
In comparing the weather between April and September, we observe distinct differences that reflect the transition from spring to early autumn. April tends to be much cooler, with average temperatures around 4°C (40°F) and maximums reaching just 13°C (55°F), while September enjoys milder conditions, boasting an average of 15°C (59°F) and highs of 22°C (73°F). Although April sees slightly more precipitation at 129 mm (5.1 in) over 13 days compared to September's 108 mm (4.3 in) across 10 days, humidity levels remain similar, with April at 80% and September at 82%. For more detailed insights about the September climate, you can check Saint John weather in September.
April and October present distinct weather patterns, each with its own unique characteristics. In April, temperatures can dip as low as -5°C (23°F), with an average of around 4°C (40°F) and maximum temperatures reaching 13°C (55°F). This month typically experiences 129 mm (5.1 in) of precipitation over about 13 days, accompanied by high humidity levels around 80%.
In contrast, October offers milder conditions, with minimum temperatures around 0°C (33°F) and an average of 11°C (52°F), peaking at 19°C (67°F). This month sees slightly less precipitation at 123 mm (4.8 in) over 12 days, with humidity levels rising to 82%. For more specific weather details, you can check Saint John weather in October.
April and November present contrasting weather patterns as spring transitions to winter. In April, temperatures range from a chilly -5°C (23°F) to a mild 13°C (55°F), with an average of 4°C (40°F). The month sees considerable precipitation, with 129 mm (5.1 in) falling over 13 days and a humidity level of 80%. In contrast, November experiences colder temperatures, with a minimum of -12°C (10°F) and a high of 16°C (62°F), averaging 5°C (40°F). Rainfall increases to 184 mm (7.3 in) across 14 days, and humidity rises slightly to 84%. For further insights, you can explore Saint John weather in November.
April and December present contrasting weather patterns in Saint John. In April, temperatures range from a minimum of -5°C to a maximum of 13°C, with an average temperature of 4°C. This month sees around 129 mm of precipitation over approximately 13 days and a humidity level of 80%. In contrast, December experiences much colder conditions, with temperatures varying from -18°C to a maximum of 14°C, averaging -1°C. Precipitation slightly increases to 142 mm across 12 days, with humidity at 82%. For more specifics on the December climate, you can check Saint John weather in December.
As April arrives in Saint John, it marks the transition into spring, bringing a welcome change from the cold winter months. With temperatures gradually rising, the city experiences more mild days, contrasting sharply with the chill of earlier months. However, April is also characterized by its significant precipitation, seeing a fair share of rainy days that contribute to the region's blossoming flora. The higher humidity levels create a distinct atmosphere that feels fresh and invigorating, making this month a unique prelude to the balmy summer ahead. To learn more about how the weather patterns evolve throughout the year, be sure to explore Saint John Climate.