Last updated: August 27, 2025
In April, San Francisco, Panama experiences a warm tropical climate with maximum temperatures reaching a sweltering 36°C (96°F) and a pleasant average of 27°C (81°F). While the weather is predominantly sunny, humidity levels hover around 70%, creating a balmy atmosphere. However, residents and visitors should be prepared for occasional rainfall, as the month sees about 105 mm (4.1 in) of precipitation spread over 12 days. This combination of warmth and moisture contributes to the lush greenery that defines the region, making April a vibrant month for exploration and outdoor activities.
In April, San Francisco experiences warm and comfortable temperatures, with a minimum of 21°C (70°F) and an average around 27°C (81°F). This sets the stage for a delightful spring experience, as the city's weather begins to show a promising upward trend. As the month progresses, temperatures peak at a steamy 36°C (96°F), marking one of the hottest points of the year. Meanwhile, Panama showcases its tropical climate, maintaining a similar minimum of 21°C (70°F) while averaging 27°C (81°F)—consistent with the months that precede it. Both cities exhibit a notable warmth, enticing visitors and locals alike to enjoy outdoor activities and the beauty of blossoming spring landscapes. Overall, April serves as a vibrant transition in both locations, heralding the onset of warmer days ahead.
In April, San Francisco, Panama, experiences a notable increase in precipitation, totaling 105 mm (4.1 in) over 12 days of rain. This marks a significant leap from the drier months of January to March, where precipitation barely registered, with only 31 mm in January and a scant 7 mm combined for the following two months. The onset of April heralds the beginning of a wetter season that peaks in the following months; May alone sees a staggering 355 mm (14.0 in) over 27 days. The trend underscores April as a transitional month, setting the stage for the heavy rainfall characteristic of the Panamanian wet season, which escalates dramatically into the summer, where precipitation often dominates nearly every day.
In April, San Francisco experiences a slight uptick in humidity, settling at 70%, which is a modest increase from March's 69%. This trend showcases the city's characteristic transition into spring, where moisture levels begin to stabilize before escalating into the high humidity of summer. Notably, following April, the humidity climbs significantly in the warmer months, soaring to 90% by June. The data indicates a distinct pattern: as the year progresses, humidity levels consistently rise, peaking during the summer months of June through August. Interestingly, despite the fluctuations, humidity remains relatively high throughout the year, reflecting San Francisco's unique coastal climate.
As April rolls into the tropical climate of San Francisco, Panama, residents and visitors alike should be prepared for an extreme UV Index of 15. This soaring figure marks a consistent upward trend that began in January and remains unchanged through May, where daily sunscreen applications are imperative, as the burn time is a mere 10 minutes. Such conditions underscore the importance of sun protection during this time of year, echoing the pattern established in previous months, making it essential to remain vigilant against the sun's harmful rays. For comprehensive details and updates on UV exposure, you can explore San Francisco UV Index.
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April in San Francisco, Panama, brings a delightful blend of sunshine with 300 hours of glorious daylight, cementing its status as a radiant spring month. This period follows a vibrant peak in March, where sunshine surged to 335 hours, illustrating a promising transition into the warmer season. However, as we move into May, the sunny moments taper off to 229 hours, suggesting a gentle retreat into the cooler months ahead. Observing the trends, it’s clear that the first quarter of the year heralds a robust embrace of sunshine, while mid-year months typically experience a gradual decline in brightness. Thus, April stands out as a beacon of light before the city prepares to welcome the mellow vibes of summer.
In April, the chance of sunny weather in San Francisco, Panama takes a notable dip to just 17%, contrasting sharply with the sunnier months preceding it. This significant decline in sunshine likelihood highlights a trend where the peak of the dry season gives way to increased cloud cover as the year progresses. While January through March sees better odds, with chances hovering around 41% to 47%, April marks a turning point into the wetter months, hinting at the dynamic shifts in climate. As spring blossoms, the city transitions away from the earlier brightness, suggesting that visitors should prepare for a mix of sun and clouds, rather than the clear skies enjoyed in the earlier months. With May and June continuing this descent into dreariness, April serves as a reminder of the variability and unpredictability of San Francisco's weather patterns.
In April, San Francisco basks in 12 hours of daylight, marking a pleasant transition into longer days as spring blossoms. The month mirrors the daylight duration of March and is part of a broader trend, with consistent 12-hour stretches appearing from March through August. This provides an inviting backdrop for outdoor activities, as the city gradually shifts from the shorter days of winter, where light barely reached 11 hours in January and February, to the longer, more vibrant days of summer. As the year progresses, San Francisco's daylight pattern illustrates a delightful rhythm that prompts locals and visitors alike to relish the extended sunlight.
April in San Francisco brings a gentle reprieve from the preceding months, with average wind speeds dipping to 1.9 m/s (4 mph), making it one of the calmest months of the year. After a gradual increase from 2.5 m/s (6 mph) in January to 3.3 m/s (7 mph) in March, the winds softly retreat, foreshadowing the tranquil summer ahead. By May, the breeze eases further to a mere 1.3 m/s (3 mph), setting a serene tone for the warmer months. This distinct pattern highlights how the vibrant spring shifts to a slower, more contemplative pace, allowing residents and visitors alike to savor the spectacular views and mild temperatures without the interruption of brisk winds.
Weather in San Francisco varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in San Francisco, focusing on differences in temperature, rainfall, humidity, and UV levels.
April and January showcase distinct weather patterns. In April, temperatures range from a minimum of 21°C (70°F) to a maximum of 36°C (96°F), with an average of 27°C (81°F). This month also experiences higher precipitation, totaling 105 mm (4.1 in) over 12 days, and a humidity level of 70%. In contrast, January features slightly cooler temperatures, with a range from 20°C (68°F) to 33°C (91°F) and an average temperature of 26°C (79°F). Additionally, January sees significantly less rainfall, with only 31 mm (1.2 in) over just 4 days, while maintaining a similar humidity level of 72%. For more details, you can check out San Francisco weather in January.
In comparing the weather between April and February, both months display a similar average temperature of around 27°C (81°F), but April experiences higher extremes, with maximum temperatures reaching 36°C (96°F) compared to February's 34°C (94°F). April also sees significantly more precipitation, averaging 105 mm (4.1 in) over 12 days, while February remains quite dry with only 8 mm (0.3 in) and no rainy days. Additionally, humidity levels are relatively comparable, hovering around 70-71%. For a more detailed look at weather conditions, you can refer to San Francisco weather in February.
In comparing the weather of April to that of March, we observe that both months have similar average temperatures, with April having a min temperature of 21°C (70°F) and a max of 36°C (96°F), while March's max only reaches 34°C (94°F). Notably, April experiences significantly higher precipitation, totaling 105 mm (4.1 in) over 12 days, in contrast to March, which recorded just 7 mm (0.3 in) with no rainy days. Humidity remains relatively stable, with April at 70% and March at 69%. For a more detailed look at weather conditions during March, you can check out San Francisco weather in March.
In comparing the weather between April and May, we observe that April generally experiences slightly warmer temperatures, with an average of 27°C (81°F) compared to May's average of 26°C (79°F). Both months see a minimum temperature of 21°C (70°F), but April reaches a higher maximum of 36°C (96°F), while May peaks at 35°C (96°F). However, May is significantly wetter, with a substantial increase in precipitation to 355 mm (14.0 in) over 27 days, compared to April's 105 mm (4.1 in) across 12 days. Humidity levels remain relatively similar, with April at 70% and May slightly higher at 73%. This shift indicates that May, while slightly cooler, brings more rain and a longer period of precipitation. For more details, you can refer to San Francisco weather in May.
In comparing the weather between April and June, April offers slightly warmer temperatures with an average of 27°C (81°F) and a peak of 36°C (96°F), while June tends to be cooler, averaging 26°C (78°F) with a maximum of 33°C (92°F). However, June experiences significantly higher precipitation, totaling 353 mm (13.9 in) over 28 days, compared to April's 105 mm (4.1 in) across 12 days. Additionally, humidity levels rise in June to 90%, compared to April's 70%, making the latter month feel less oppressive. For more details on specific June conditions, you can check San Francisco weather in June.
In April, the weather is typically warmer, with average temperatures ranging from a minimum of 21°C (70°F) to a maximum of 36°C (96°F), making it hotter than July. However, July experiences significantly more rainfall, with precipitation reaching 404 mm (15.9 in) over about 28 days, compared to April's 105 mm (4.1 in) over 12 days. Additionally, humidity levels are higher in July at 88%, compared to 70% in April, creating a more humid atmosphere during the summer months. For more details on July weather, check out San Francisco weather in July.
When comparing the weather in April and August, we see that April generally experiences warmer temperatures, with an average of 27°C (81°F) and a maximum of 36°C (96°F), while August has a cooler average of 25°C (78°F) and a maximum of 33°C (91°F). Precipitation significantly differs between the two months; April sees about 105 mm (4.1 in) over 12 days, whereas August receives a substantial 359 mm (14.1 in) over 29 days, indicating that August is much wetter. Additionally, humidity levels rise in August, reaching 87% compared to April's 70%, making it feel more humid and sticky. For more regional insights, you can visit San Francisco weather in August.
When comparing the weather in April and September, notable differences emerge. April typically features warmer temperatures, with daytime averages around 27°C (81°F) and highs reaching up to 36°C (96°F). In contrast, September experiences cooler averages of 25°C (78°F) and maximum temperatures of 32°C (91°F). While April has a relatively moderate precipitation level of 105 mm (4.1 in) over about 12 days, September sees a significant increase in rainfall, totaling 459 mm (18.1 in) across 30 days, contributing to a much higher humidity level of 87%. For more details on September weather trends, you can refer to San Francisco weather in September.
In comparing the weather between April and October, we see notable differences in temperature, precipitation, and humidity. April tends to be warmer, with temperatures ranging from a minimum of 21°C (70°F) to a maximum of 36°C (96°F) and an average of 27°C (81°F). In contrast, October experiences cooler temperatures, with a minimum of 21°C (69°F), an average of 25°C (77°F), and a maximum of 32°C (90°F).
When it comes to rainfall, April receives 105 mm (4.1 in) of precipitation over about 12 days, while October is considerably wetter, with 410 mm (16.2 in) occurring over 29 days. Additionally, October's higher humidity at 86% compared to April's 70% contributes to a more muggy feel. For more detailed insights, you can check San Francisco weather in October.
In comparing the weather of April and November, April typically enjoys warmer temperatures with an average of 27°C (81°F) and highs reaching up to 36°C (96°F). However, it is also a month marked by significant rainfall, with around 105 mm (4.1 in) of precipitation over approximately 12 days, and a humidity level of 70%. In contrast, November presents cooler temperatures, averaging 25°C (77°F) with a maximum of 32°C (90°F), but it compensates with a much higher precipitation level of 385 mm (15.1 in) spread over 26 days, along with increased humidity at 86%. For more detailed insights, you can refer to San Francisco weather in November.
April and December showcase relatively mild tropical weather, but with some distinct differences. In April, temperatures range from a minimum of 21°C (70°F) to a maximum of 36°C (96°F), with an average of 27°C (81°F). The month experiences 105 mm (4.1 in) of precipitation spread over 12 days, alongside a humidity level of 70%. Conversely, December brings slightly cooler temperatures, with a minimum of 20°C (69°F) and a maximum of 32°C (90°F), averaging 26°C (78°F). Precipitation is slightly lower at 103 mm (4.1 in) over 9 days, and humidity increases to 79%. For more detailed insights on December weather, check out San Francisco weather in December.
April in San Francisco marks a transition to warmer days as temperatures begin to rise, offering a refreshing contrast to the cooler months that precede it. With an average of 27°C (81°F), residents and visitors can enjoy a pleasant climate, though occasional peaks can reach a sizzling 36°C (96°F). Despite the increase in warmth, April still experiences a fair share of rainfall, averaging about 105 mm across 12 days, ensuring the city retains its lush greenery. The humidity level, hovering around 70%, can add to the refreshing feel of spring. As you explore the beauty of San Francisco in April, you can discover more about the city's unique climate patterns at San Francisco Climate.