Last updated: August 31, 2025
April brings a comfortable climate to Port Saint John's, South Africa, characterized by a maximum temperature of 33°C (92°F) and an average temperature of 20°C (68°F), making it a pleasant time to explore the region. The weather can be quite variable, with minimum temperatures reaching 11°C (53°F) during cooler nights. Rainfall is not uncommon, as the area experiences approximately 130 mm (5.1 in) of precipitation over about 12 days, contributing to the lush surroundings. Humidity levels average a muggy 89%, so visitors should be prepared for a tropical atmosphere while enjoying the vibrant landscapes of this stunning coastal town.
In April, Port Saint John’s experiences a transition into cooler weather, with temperatures dipping slightly compared to the warmer summer months. The minimum temperature settles at a brisk 11°C (53°F), while the average temperature hovers around a comfortable 20°C (68°F). As daytime warms, it can reach a maximum of 33°C (92°F), making for pleasantly warm afternoons that are ideal for outdoor activities. This month marks a shift as it contrasts with March's averages, showcasing a gradual cooling trend as winter approaches. Meanwhile, the consistent drop in temperatures signals the end of the peak summer heat, inviting visitors to enjoy the beautiful landscapes and vibrant coastal life in a more temperate climate.
April in Port Saint John's, South Africa, brings an average precipitation of 130 mm (5.1 in) over approximately 12 days. This month sits comfortably in the middle range of the annual precipitation cycle, following March's slightly higher total of 126 mm and leading into May's significant drop to just 53 mm. The consistent rainfall in April not only contributes to the lush landscapes but also indicates a transition towards drier months, as the region shifts from its peak wet season. This blend of moderate rain and reduced precipitation days showcases a dynamic shift in weather patterns, hinting at the approaching winter months. Overall, April serves as a vital bridge between the rainy season's end and the impending dry spells, marking it as a crucial period for the area's ecology and agriculture.
In April, Port Saint John's humidity remains notably high at 89%, consistent with the trend observed in previous months. Following a slightly elevated March with 89%, the humidity levels have stabilized, indicating a peak before the drier months ahead. This slight plateau in moisture levels is typical for this region, as it transitions from the wet summer season towards the cooler, less humid winter months. Overall, April's humidity contributes to the lush, vibrant landscapes for which Port Saint John is famous, while hinting at the drier conditions that will unfold as the year progresses.
In April, Port Saint John's UV Index reaches a notable 9, categorizing it as very high. This marks a slight decline from the extreme levels seen in the earlier months, yet caution is still advised as the burn time is approximately 15 minutes. As summer transitions into autumn, the UV intensity begins to moderate, reflecting a broader trend where the region experiences its highest UV indexes in the early part of the year, peaking at 14 in January and December. Come May, the index further drops to 6, shifting to a high exposure category, making April an important month for sun safety awareness. For more insights and tools to protect yourself from UV exposure, visit Port Saint John's UV Index.
UV Risk Categories
In April, Port Saint John’s basks in a delightful 293 hours of sunshine, embracing the start of autumn with warm, inviting days. This month follows a steady increase from January’s 287 hours to March’s peak of 325 hours, showcasing the gradual transition into a sunnier season. Although April sees a slight dip, it remains above the mid-year average, signaling a consistent trend of abundant sunshine that continues into May with 301 hours. As winter approaches in June, the sun retreats slightly to 281 hours, but the overall trend indicates a robust sun-filled year, particularly as the later months shine brightly, culminating in December’s impressive 358 hours. This cyclical dance of light makes Port Saint John’s a captivating destination for sun-seekers year-round.
April marks a notable shift in Port Saint John's weather, with the likelihood of sunny days climbing to 47%. This increase from the previous months reflects a transition into a more favorable season, setting the stage for more enjoyable outdoor activities. Notably, March’s sun chance of 41% serves as a precursor, suggesting that as summer approaches, residents and visitors alike can anticipate brighter, more inviting days. Following April, the trend continues upward, leading into May, where the probability of sunshine skyrockets to an impressive 72%. This pattern showcases the progressive warming and easing of seasonal transitions, making April a delightful time to soak up the sun before the peak sunshine months arrive.
In Port Saint John's, South Africa, the month of April brings a noticeable decrease in daylight, with just 11 hours of sun compared to the 12 hours enjoyed in March. This trend marks the beginning of a gradual decline in daylight hours as the region transitions into the cooler months of late autumn. Following April, daylight continues to shorten into May, where it reaches 10 hours. This pattern reflects a broader seasonal shift, showcasing how the vibrant days of summer gradually give way to shorter, more tranquil hours of light. As the year progresses, the daylight duration will stabilize, hovering around 10 hours through the winter months before gradually increasing again in spring.
In April, Port Saint John's experiences a gentle shift in its coastal winds, with an average speed of 3.0 m/s (7 mph)—a slight decrease from the previous months. This trend of softer winds mirrors the onset of cooler weather, as both May and April share the same wind speed, providing a serene atmosphere perfect for leisurely strolls along the shore. As the months progress, the winds begin to pick up slightly again, peaking at 3.8 m/s (9 mph) in October. Throughout the year, the wind speeds fluctuate subtly, but April's calm breezes invite locals and visitors alike to savor the natural beauty of this coastal haven.
Weather in Port Saint John's varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Port Saint John's, focusing on differences in temperature, rainfall, humidity, and UV levels.
April and January exhibit notable differences in weather patterns. In April, temperatures range from a minimum of 11°C (53°F) to a maximum of 33°C (92°F), with an average of 20°C (68°F). This month typically sees 130 mm (5.1 in) of precipitation over 12 days, contributing to a high humidity level of 89%. In contrast, January boasts slightly warmer temperatures, with a minimum of 15°C (59°F), an average of 22°C (73°F), and a maximum reaching 35°C (95°F). While it experiences a bit less precipitation at 101 mm (4.0 in) across 15 days, the humidity remains comparable at 88%. For more specifics about January weather, you can explore Port Saint John's weather in January.
When comparing the weather in April and February, both months exhibit warm temperatures, but they do have some distinctions. February displays slightly higher average temperatures, with a minimum of 15°C (59°F) and a maximum of 34°C (93°F), whereas April has a lower minimum of 11°C (53°F) but a comparable maximum of 33°C (92°F). In terms of precipitation, February experiences a bit more rainfall with 137 mm (5.4 in) over 17 days compared to April's 130 mm (5.1 in) over 12 days. Humidity levels are similar, with February at 88% and April slightly higher at 89%. For more details, check Port Saint John's weather in February.
In comparing the weather between March and April, both months exhibit similar maximum temperatures, peaking at 33°C (92°F). However, April tends to be slightly warmer with an average of 20°C (68°F), compared to March's 22°C (72°F). Precipitation is fairly comparable, with April receiving 130 mm (5.1 in) over 12 days and March experiencing slightly less at 126 mm (4.9 in) across 16 days. Humidity remains consistent at 89% for both months, giving each a similar level of mugginess. For a more detailed look at March conditions, you can visit Port Saint John's weather in March.
In comparing the weather of April and May, we notice that April tends to be warmer with average temperatures reaching up to 20°C (68°F), while May sees a slight dip to an average of 18°C (65°F). April also experiences a wider temperature range, with highs of 33°C (92°F) compared to May's maximum of 31°C (87°F). Additionally, April is significantly wetter, boasting 130 mm (5.1 in) of precipitation over 12 days, whereas May has only 53 mm (2.1 in) over just 4 days. Humidity remains quite similar, averaging 89% in April and 88% in May. For more detailed insights, visit Port Saint John's weather in May.
April and June present quite different weather conditions. In April, temperatures range from a minimum of 11°C (53°F) to a maximum of 33°C (92°F), with an average of 20°C (68°F). This month is characterized by higher humidity at 89% and significant rainfall, totaling 130 mm (5.1 in) over 12 days. In contrast, June experiences cooler temperatures, with a minimum of 7°C (46°F) and a maximum of 30°C (86°F), averaging 16°C (61°F). The month is considerably drier, receiving only 33 mm (1.3 in) of precipitation across just 3 days, and humidity drops slightly to 82%. For those interested in more details, check out Port Saint John's weather in June.
April and July present contrasting weather conditions, highlighting the transition into different seasons. In April, temperatures range significantly, with a minimum of 11°C (53°F) and a maximum of 33°C (92°F), while July sees cooler temperatures, peaking at 31°C (87°F) and dipping to a minimum of 6°C (43°F). April is characterized by higher humidity at 89% and substantial precipitation of 130 mm (5.1 in) over 12 days, making it a wetter month. In contrast, July experiences much lighter rainfall, with only 10 mm (0.4 in) over just two days and moderate humidity at 77%. For more detailed insights into July weather, you can visit Port Saint John's weather in July.
April and August present distinct contrasts in weather patterns. In April, temperatures range from a minimum of 11°C (53°F) to a maximum of 33°C (92°F), with an average of 20°C (68°F), creating a warm atmosphere. The month also experiences higher humidity at 89% and significant precipitation totaling 130 mm (5.1 in) over approximately 12 days. In contrast, August features cooler temperatures, with a range from 7°C (45°F) to a maximum of 30°C (86°F) and an average of 16°C (61°F). Rainfall is markedly lower at 51 mm (2.0 in) over 8 days, and humidity drops to 72%. For more specific details on August weather, visit Port Saint John's weather in August.
April and September present contrasting weather patterns, with April generally being warmer and more humid. In April, temperatures range from a minimum of 11°C (53°F) to a maximum of 33°C (92°F), while September sees slightly lower temperatures, with a minimum of 9°C (48°F) and a maximum of 34°C (94°F). Precipitation is significantly higher in April, totaling 130 mm (5.1 inches) over 12 days, compared to September's 62 mm (2.4 inches) over just 10 days. Humidity levels also differ, as April boasts an average humidity of 89%, while September's humidity is slightly lower at 82%. For more specific details on September weather, you can refer to Port Saint John's weather in September.
April and October weather exhibit some similarities, but also notable differences. In April, average temperatures range from a minimum of 11°C (53°F) to a maximum of 33°C (92°F), while October sees slightly cooler averages, with temperatures ranging from 10°C (50°F) to a maximum of 34°C (93°F). Although both months experience significant humidity, April is the more humid month at 89%, compared to October's 83%. Precipitation levels in April are higher, with 130 mm (5.1 in) over 12 days, compared to October's 111 mm (4.4 in) over 13 days. For a closer look at October's climate specifics, visit Port Saint John's weather in October.
April and November feature similar minimum temperatures, averaging around 11°C (53°F). However, April has a slightly warmer average of 20°C (68°F), while November cools to 19°C (67°F) on average. Maximum temperatures in November can reach up to 34°C (93°F), which is just a degree higher than April’s maximum of 33°C (92°F). In terms of precipitation, April experiences slightly more rainfall at 130 mm (5.1 in) over 12 days, compared to November’s 123 mm (4.9 in) spread over 18 days. Humidity levels remain high in both months, with April at 89% and November slightly lower at 87%. For more details, check out Port Saint John's weather in November.
April and December exhibit similarities in temperature and precipitation, although there are notable differences. In April, temperatures range from a minimum of 11°C (53°F) to a maximum of 33°C (92°F), with an average temperature of 20°C (68°F). The month experiences around 130 mm (5.1 in) of precipitation over 12 days and maintains a high humidity level of 89%. In contrast, December sees slightly warmer temperatures, with a minimum of 13°C (56°F) and a maximum of 31°C (88°F), averaging at 21°C (70°F). The precipitation in December is similar at 129 mm (5.1 in), but it occurs over more days, totaling 18 days of rainfall, and humidity remains slightly lower at 88%. For more detailed information, you can check Port Saint John's weather in December.
As April rolls in, Port Saint John's weather showcases a unique charm, transitioning from the warmth of summer to a more mild and refreshing climate. The average temperature, while still inviting, dips from the heights of previous months, offering a comfortable atmosphere that complements the lush surroundings. With increased humidity and a notable amount of rainfall, you can expect the landscape to flourish, enhancing the region's natural beauty. This month stands out, not just for its pleasant temperatures but also for the vibrant foliage that comes to life after the showers. For those interested in a deeper dive into how April's weather fits into the broader picture, check out Port Saint John's Climate.