Last updated: April 22, 2025
June in Saint John, Canada offers a delightful blend of mild temperatures and lush, verdant landscapes. With maximum temperatures reaching 21°C (71°F) and an average of 13°C (56°F), the weather is perfect for outdoor activities, despite the occasional chill with lows averaging 4°C (39°F). June also sees 110 mm (4.3 in) of precipitation spread over 11 days, contributing to the region’s vibrant greenery. The air is imbued with a humid 82%, creating a refreshing atmosphere that makes exploring this charming coastal city an invigorating experience.
In June, Saint John, Canada begins to bask in the warmth of summer, with temperatures marking a distinct upward trend. The minimum temperature rises to a comfortable 4°C (39°F), while the average climbs to a pleasant 13°C (56°F). Daytime highs reach a cheerful 21°C (71°F), inviting residents and visitors alike to enjoy outdoor activities and explore the scenic beauty of the region. This month serves as a refreshing contrast to the frigid winter months, as the city transitions from chilly temperatures to the embrace of summer, offering a delightful atmosphere perfect for soaking up the sun.
In June, Saint John experiences a balanced precipitation pattern, with an average of 110 mm (4.3 in) of rain over 11 days. This slight dip from May's 117 mm (4.6 in) suggests the beginning of a transition towards the drier summer months, as July and August typically see reduced rainfall. Despite this decrease, June's rainfall remains significant, contributing to the lush greenery that characterizes the region as it fully blooms into summer. Notably, the month serves as a bridge, balancing the robust spring deluges of April and May with the lighter, more sporadic rainfall seen in the following weeks, showcasing the dynamic climate of this vibrant coastal city.
In Saint John, Canada, the month of June experiences a humidity level of 82%, aligning closely with the cooler spring months but reflecting a slight uptick as the region transitions into summer. This consistency in humidity is part of an overall trend observed throughout the year, where levels hover mainly between 80% and 84%. As warmer months approach, humidity tends to increase modestly, peaking in February and July at 84%. However, June stands as a reminder that while summer heat begins, the crispness of spring lingers just enough to keep the air pleasantly humid. Thus, residents and visitors can expect a balanced atmosphere as they embrace the summery charms of this picturesque coastal city.
In June, Saint John experiences its peak UV Index, reaching an impressive 10, which falls in the very high exposure category with a burn time of just 15 minutes. This marks a significant increase from the preceding months, where UV levels consistently climbed from a mild 2 in January to a striking 9 in May. As summer sets in, residents and visitors alike should remain vigilant, as intense sunlight can lead to fast skin damage. Following June, the UV Index slightly dips to 8 in both July and August, but it remains critically high, underscoring the importance of sun protection. To stay informed about UV trends in Saint John and ensure safe sun exposure, please visit Saint John UV Index.
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June in Saint John, Canada, brings a delightful surge of sunshine with 307 hours of radiant light, making it one of the sunniest months of the year. This increase follows the gradual ascent from the winter months, where daylight struggles to reach even 127 hours in January. The transition to summer is palpable as May already hits 280 hours, but June shines brightest, overshadowing its predecessors and paving the way for July's slightly lower total of 304 hours. The upward trend from spring to summer highlights not only the vibrant energy of the season but also invites locals and visitors alike to bask in the outdoor beauty and festivities that Saint John has to offer during these glorious sun-filled days.
In Saint John, Canada, the likelihood of sunny weather sees a slight uptick in June, with a 38% chance of sunshine—a modest improvement compared to earlier months like January and February, which hover around 28%. While May offers a more promising 39%, June stands out amidst a decline in sunny days through the summer, notably July plummeting to just 19%. As spring transitions into summer, June provides one of the better chances for enjoying clear skies before the typical maritime weather takes over, making it a transitional month where residents can savor the sun's warmth.
As summer approaches, June in Saint John, Canada, shines brightly with approximately 15 hours of daylight, a delightful extension that marks the year's longest days. This gradual increase from a modest 9 hours in January reflects the regions’ transition from the stark winter months towards the warmth of summer. Each month builds on the last, with daylight duration climbing consistently—10 hours in February, 11 in March, and so on—until it reaches its peak in June and July. Following this zenith, daylight begins to taper off, transitioning gently back into shorter days as August rolls in. This natural progression of light not only enhances the daily activities but also sets the stage for the vibrant outdoor life that Saint John is known for, making June a time of joyous exploration and connection with nature.
In June, Saint John experiences a gentle shift in its winds, with an average speed of 4.9 m/s (11 mph). This late spring month demonstrates a slight decline from May's breezy average of 4.8 m/s (11 mph), suggesting a transition into the calmer summer months. Throughout the year, wind speeds in Saint John typically peak during the winter, with January and February averaging around 5.5 m/s (12 mph), while July and August cool down to their most tranquil periods, dipping to 4.1 m/s (9 mph) and 4.0 m/s (9 mph) respectively. Such trends indicate that as the year progresses, the winds become milder, making June a pleasant time for outdoor activities in this picturesque Canadian city.
The weather in Saint John changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of June'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.
June and January in Saint John present starkly contrasting weather conditions. June enjoys milder temperatures, with a minimum of 4°C (39°F) and an average of 13°C (56°F), peaking at a comfortable 21°C (71°F). In contrast, January experiences frigid temperatures, plunging to a minimum of -22°C (-8°F) and averaging -4°C (26°F), with a maximum of only 13°C (56°F). Precipitation levels are quite similar, with June seeing 110 mm (4.3 in) over 11 days and January recording 107 mm (4.2 in) over 10 days. Interestingly, both months exhibit high humidity levels, with June at 82% and January slightly higher at 83%. For a detailed look at January weather, check out Saint John weather in January.
June and February present stark contrasts in weather conditions. June enjoys milder temperatures, ranging from a minimum of 4°C (39°F) to a maximum of 21°C (71°F), with an average of 13°C (56°F). In contrast, February features much colder weather, with temperatures plummeting to a minimum of -20°C (-4°F) and averaging -3°C (26°F). While both months receive similar amounts of precipitation—approximately 110 mm (4.3 in) in June and 112 mm (4.4 in) in February—the distribution of rainy days is slightly different, with June experiencing about 11 days of rain compared to February’s 12 days. Additionally, humidity is relatively high in both months, reaching 82% in June and 84% in February. For more details on February weather, visit Saint John weather in February.
In comparing the weather between June and March, a stark contrast is evident. June brings much warmer temperatures, with averages around 13°C (56°F) and a maximum of 21°C (71°F), while March is much cooler, featuring an average of -1°C (31°F) and a maximum of only 11°C (52°F). Precipitation levels are relatively similar, with June receiving 110 mm (4.3 in) over 11 days compared to March's 88 mm (3.5 in) across 10 days. Interestingly, both months share the same humidity level at 82%, creating a damp atmosphere in both early spring and late spring. For more detailed information on March weather, check out Saint John weather in March.
When comparing the weather in June and April, it's clear that June offers warmer temperatures, with a minimum of 4°C (39°F) compared to April's chilly minimum of -5°C (23°F). The average temperature in June rises to a comfortable 13°C (56°F), whereas April only manages an average of 4°C (40°F). However, April experiences slightly more precipitation, totaling 129 mm (5.1 in) over 13 days, compared to June's 110 mm (4.3 in) over 11 days. The humidity levels are similar, with June at 82% and April at 80%, making both months feel somewhat damp. For a more detailed look at April weather patterns, you can check Saint John weather in April.
In comparing the weather between May and June, June generally offers slightly warmer temperatures, with minimums reaching 4°C (39°F) and average highs of 21°C (71°F), compared to May's minimum of 1°C (33°F) and average maximum of 20°C (68°F). While both months experience significant precipitation, June has a total of 110 mm (4.3 in) over 11 days, slightly less than May’s 117 mm (4.6 in) over 12 days. Additionally, June's humidity increases to 82%, compared to May's more moderate 78%. For more details, check out Saint John weather in May.
June and July present a notable transition in weather, with July generally being warmer and slightly more humid. In June, temperatures range from a minimum of 4°C (39°F) to a maximum of 21°C (71°F), with an average of 13°C (56°F) and 110 mm (4.3 in) of precipitation over 11 days. In contrast, July sees minimum temperatures rise to 11°C (51°F) and maximums peak at 22°C (72°F), averaging around 16°C (62°F). While July has less total precipitation at 92 mm (3.6 in) over 13 days, the humidity remains relatively high at 84%. For further details on July's weather specifics, you can check Saint John weather in July.
June and August exhibit distinct weather characteristics, contributing to their unique atmospheres. June experiences cooler temperatures, with a minimum of 4°C (39°F) and an average of 13°C (56°F), while August warms up significantly, showing a minimum of 11°C (53°F) and an average of 17°C (63°F). While both months share the same humidity level of 82%, June tends to be wetter, with 110 mm (4.3 in) of precipitation over 11 days compared to August's 89 mm (3.5 in) over 10 days. For more detailed insights on August's weather, you can check Saint John weather in August.
In comparing the weather of June and September, both months exhibit similar features, yet distinct differences. June experiences slightly cooler temperatures with a minimum of 4°C (39°F) and an average of 13°C (56°F), while September sees a warmer minimum of 7°C (45°F) and an average of 15°C (59°F). Although both months have comparable maximum temperatures, with June reaching 21°C (71°F) and September at 22°C (73°F), June has a marginally higher precipitation level of 110 mm (4.3 in) over 11 days compared to September’s 108 mm (4.3 in) over 10 days. Humidity remains consistent at 82% in both months, contributing to a similar overall feel. For more detailed information, you can check Saint John weather in September.
June and October in Saint John present distinct weather patterns. June typically showcases milder temperatures, with a minimum of 4°C (39°F) and an average of 13°C (56°F), while October features cooler conditions, starting at 0°C (33°F) and averaging 11°C (52°F). Rainfall is slightly more abundant in October, with 123 mm (4.8 in) of precipitation over 12 days compared to June's 110 mm (4.3 in) over 11 days. Both months maintain a consistent humidity level of 82%, but the cooler October air often feels more crisp. For a more detailed look at October's weather, visit Saint John weather in October.
June and November present distinctly different weather patterns. In June, temperatures generally range from a minimum of 4°C (39°F) to a maximum of 21°C (71°F), with an average of 13°C (56°F). While June sees some rainfall, totaling about 110 mm (4.3 in) over approximately 11 days, humidity remains high at 82%. In contrast, November experiences much colder temperatures, with a minimum of -12°C (10°F), an average of 5°C (40°F), and a maximum of 16°C (62°F). The month also has more precipitation, with 184 mm (7.3 in) falling over 14 days, alongside slightly higher humidity at 84%. For more specific details about November's weather, you can refer to Saint John weather in November.
June and December present stark contrasts in weather patterns. In June, temperatures range from a mild 4°C (39°F) to a pleasant max of 21°C (71°F), accompanied by an average of 110 mm (4.3 in) of rainfall over 11 days and a high humidity level of 82%. In contrast, December is much colder, with temperatures plummeting to a minimum of -18°C (-1°F) and averaging around -1°C (31°F), while reaching a maximum of 14°C (57°F). This month also sees slightly more rainfall at 142 mm (5.6 in) over 12 days, yet the humidity remains constant at 82%. For more detailed information about the December weather, you can refer to Saint John weather in December.
June in Saint John marks a delightful transition into warmer weather, with temperatures rising noticeably compared to the chillier months prior. The average temperature of 13°C (56°F) sets the stage for a refreshing summer feel, while the maximum reaches a pleasant 21°C (71°F). Although rain is still a factor, with about 110 mm (4.3 in) of precipitation over 11 days, the overall humidity of 82% adds a tropical touch to the coastal air. This month serves as a vibrant precursor to the hot summer ahead, making it an ideal time for outdoor adventures. For a deeper dive into what to expect throughout the year, explore Saint John Climate.