Last updated: August 21, 2025
March in San Jose, Costa Rica offers a delightful blend of warmth and humidity, with average temperatures hovering around 24°C (76°F), peaking at a comfortable 28°C (83°F). Visitors can expect a mild minimum temperature of 21°C (69°F), perfect for exploring the vibrant city. However, it's important to prepare for abundant rainfall, with precipitation amounts reaching 102 mm (4.0 in) over 23 days. The humidity level sits at 63%, adding a tropical essence to the air. March presents an ideal time to experience San Jose’s lush landscapes and lively culture, despite the frequent showers.
In March, San Jose, Costa Rica, begins to feel the warmth of approaching summer, with temperatures slightly rising from previous months. The month showcases a minimum temperature of 21°C (69°F) and a consistent average of 24°C (76°F), similar to February’s average. The maximum temperature also reaches a comfortable 28°C (83°F), mirroring the peaks of the preceding month. This trend indicates a gradual warming as the region transitions into the hotter months ahead, making March an ideal time for enjoying outdoor activities amidst pleasantly mild conditions. As the days lengthen and the sun shines brightly, visitors can expect a delightful climate, perfect for exploring San Jose and its surroundings.
March in San Jose, Costa Rica, marks a transitional phase in the rainy season, with precipitation amounts reaching 102 mm (4.0 in) over 23 days. This slight increase from February's 96 mm signifies the onset of more frequent downpours as the region prepares for the wetter months ahead. Interestingly, the number of rain-filled days in March is the highest so far this year, hinting at the building humidity and the changing climate as April approaches. The increasing precipitation trend continues into May, where totals skyrocket to 297 mm (11.7 in), making March a pivotal month as the city braces for the intense rainfall that characterizes the upcoming months.
In March, San Jose, Costa Rica, experiences a comfortable humidity level of 63%, marking a slight dip from February's 64% and aligning with the April average. This period treads a tranquil path before the onset of the wet season, where humidity begins to rise significantly in June, soaring to 74% and peaking at 85% in July. Interestingly, March's humidity hints at the transitional climate, maintaining a balance that invites both vibrant greenery and pleasant outdoor activities. As the months progress, the gradual uptick in humidity signals the approach of the lush and tropical conditions typical of Costa Rica's rainy season.
In March, San Jose, Costa Rica, experiences a remarkable UV Index of 14, categorizing the exposure as extreme and maintaining a consistent burn time of just 10 minutes. This month marks the peak of a trend that began in January, where the UV Index steadily increased from 11 to its highest point. Following March, the UV Index remains at 14 through April, May, and June, indicating a sustained period of high solar radiation that necessitates caution and protection from sun exposure. For more details on the UV levels throughout the year, check out the comprehensive data at San Jose UV Index.
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March is a radiant month in San Jose, Costa Rica, standing out as the peak of sunshine with an impressive 332 hours of bright sunlight. This trend of increasing daylight begins in January with 258 hours and steadily climbs through February before reaching its March zenith. The sunshine begins to wane slightly in April at 325 hours, but remains robust throughout the year, with a consistent range around 300 hours for the following months. This gentle ebb and flow of sunlight underlines March as not just a transitional month, but the vibrant heart of the dry season, inviting both locals and visitors to revel in the warm embrace of the Costa Rican sun.
In March, San Jose, Costa Rica enjoys a moderate chance of sunny weather at 47%. This marks a slight decline from February's 51%, yet it remains significantly higher than the rainy peak expected in the following months. As the dry season transitions into the more humid periods starting in April, the likelihood of sunshine dips to 29%, emphasizing the last opportunity for visitors to experience clear skies before the frequent rains of May and June set in. Thus, March stands as a sweet spot for travelers seeking warmth and sunlight, sandwiched between the sunniest month of February and the onset of Costa Rica's lush rainy season.
In March, San Jose, Costa Rica, welcomes an increase in daylight duration, basking in a full 12 hours of natural light each day. This marks a noticeable shift from the consistent 11 hours found in the earlier months of the year, such as January and February. As spring approaches, daylight remains steady at 12 hours through April and May, creating an inviting atmosphere for outdoor activities. This trend of extended daylight continues through the mid-year months, indicating a delightful rhythm to the region's seasonal changes. However, as the year progresses towards October, daylight gradually declines back to 11 hours, signaling the onset of the cooler months. The subtle ebb and flow of daylight in San Jose not only enhances the local climate but also enriches the community's vibrant lifestyle.
As March settles over San Jose, Costa Rica, residents and visitors alike can feel the invigorating shift in the air, with average wind speeds reaching 5.7 m/s (13 mph)—the highest recorded for the month. This marks a subtle yet noticeable increase from February's 5.1 m/s (11 mph), suggesting a delightful transition into the dry season. Following March, the winds begin to wane, dropping to 4.5 m/s (10 mph) in April and May, which hints at the more tranquil breezes typical of the coming months. Overall, the winds in San Jose tend to decrease as the year progresses, creating a rhythmic flow that mirrors the region's seasonal changes. Whether you’re enjoying the vibrant energy of March or the calm of subsequent months, the wind patterns add a dynamic layer to the Costa Rican experience.
Weather in San Jose varies notably across the year, with each month offering distinct climate conditions. This page compares March’s weather to other months in San Jose, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather between March and January, both months experience warm temperatures, with January showing slightly cooler conditions. January has a minimum temperature of 20°C (68°F) and an average of 24°C (75°F), while March's temperatures range from 21°C (69°F) to an average of 24°C (76°F). Precipitation is more prevalent in January, totaling 148 mm (5.8 in) across 22 days, compared to March's 102 mm (4.0 in) over 23 days. Additionally, humidity levels are slightly higher in January at 66%, compared to 63% in March. For more details on January weather, check out San Jose weather in January.
In comparing the weather between March and February, we see a slight increase in precipitation in March, totaling 102 mm over 23 days, compared to February's 96 mm over 20 days. Despite the increased rain, both months share similar temperature ranges, with minimums of 21°C (69°F) in March and 20°C (68°F) in February, while both average and maximum temperatures remain consistent at 24°C (76°F) and 28°C (83°F) respectively. Humidity levels are also quite similar, with March at 63% and February slightly higher at 64%. For a more detailed look at February weather specifically, you can visit San Jose weather in February.
In comparing the weather between March and April, it becomes evident that April sees slightly warmer temperatures, with a minimum of 22°C (71°F) and an average of 26°C (78°F), compared to March's minimum of 21°C (69°F) and an average of 24°C (76°F). Additionally, April experiences a higher maximum temperature of 30°C (87°F) versus March's 28°C (83°F). While both months exhibit similar humidity levels of 63%, April has less rainfall, totaling 75 mm (2.9 in) over 19 days compared to March's 102 mm (4.0 in) over 23 days. For more information, check out San Jose weather in April.
March typically sees slightly warmer temperatures, with an average of 24°C (76°F) and a maximum of 28°C (83°F), while May is generally warmer, with an average of 26°C (78°F) and a maximum of 30°C (85°F). However, May experiences significantly more precipitation, totaling 297 mm (11.7 in) over 28 days compared to March's 102 mm (4.0 in) over 23 days. Both months maintain a humidity level of 63%, but the increased rainfall in May can lead to a more pronounced wet atmosphere. For more detailed information, you can check San Jose weather in May.
In comparing the weather of March and June, March tends to be slightly cooler, with average temperatures ranging from a minimum of 21°C (69°F) to a maximum of 28°C (83°F). The month sees a considerable amount of rainfall, totaling 102 mm (4.0 in) over 23 days, contributing to a humidity level of 63%. Conversely, June experiences warmer temperatures, with average lows of 23°C (73°F) and highs reaching 29°C (85°F). However, it also brings significant rainfall—337 mm (13.3 in) spread over 30 days—which raises the humidity to 74%. To explore more about the climate specifics, you can refer to San Jose weather in June.
In March, the weather in San Jose features warm temperatures with a minimum of 21°C (69°F) and an average of 24°C (76°F), peaking at a maximum of 28°C (83°F). The month experiences a moderate amount of rainfall, totaling 102 mm (4.0 in) over approximately 23 days, accompanied by a humidity level of 63%.
In comparison, July sees slightly warmer conditions with a minimum of 22°C (73°F) and an average of 25°C (77°F), while still reaching a maximum of 28°C (84°F). However, this month is significantly wetter, receiving 270 mm (10.6 in) of precipitation over 30 days, and humidity levels rise considerably to 85%. For more detailed insights, you can visit San Jose weather in July.
In comparing the weather between March and August, it’s clear that both months offer warm temperatures, but August tends to be slightly warmer overall. March typically sees temperatures ranging from a minimum of 21°C to a maximum of 28°C, with an average of 24°C. In contrast, August boasts a minimum of 22°C and a maximum of 29°C, with an average temperature of 25°C. Precipitation levels also differ significantly; March experiences 102 mm of rainfall over 23 days, while August has a much wetter 286 mm across 30 days. Additionally, humidity levels rise from 63% in March to a higher 82% in August, making the latter month feel more humid and tropical. For more detailed information about August weather, you can visit San Jose weather in August.
In March, the weather is warm and pleasant, with average temperatures ranging from a minimum of 21°C (69°F) to a maximum of 28°C (83°F). However, this month also experiences significant rainfall, totaling 102 mm (4.0 in) over 23 days and maintaining a humidity level of 63%. In contrast, September is slightly warmer, with average temperatures between 22°C (73°F) and 29°C (84°F). It also experiences higher precipitation, with 272 mm (10.7 in) falling over 29 days, leading to a rise in humidity to 80%. For more detailed insights, you can check San Jose weather in September.
In comparing the weather between March and October, we see some notable differences. March experiences slightly warmer temperatures, with an average of 24°C (76°F) and a maximum of 28°C (83°F), while October remains similar in maximum temperature but has a marginally higher average at 25°C (77°F). However, October is significantly wetter, receiving 387 mm (15.2 in) of precipitation over 28 days compared to March's 102 mm (4.0 in) over 23 days. Additionally, October's humidity is higher, averaging 79%, compared to March's 63%, making it feel more humid and sticky. For more detailed information, you can check San Jose weather in October.
March and November in San Jose showcase similar average temperatures, hovering around 24°C (76°F), but they differ significantly in terms of precipitation and humidity. March generally experiences warmer conditions with a minimum temperature of 21°C (69°F) and lower humidity at 63%, while November sees a slight increase in minimum temperature to 22°C (72°F) and higher humidity at 79%. The most striking difference, however, is in rainfall; March receives 102 mm (4.0 in) of precipitation over 23 days, whereas November experiences a substantial increase with 306 mm (12.0 in) over 28 days. For a more detailed look at November weather, you can visit San Jose weather in November.
In comparing the weather of March and December, both months exhibit similar temperature ranges, with minimum temperatures around 20°C (69°F), average temperatures at 24°C (75-76°F), and maximum temperatures reaching 28°C (82-83°F). However, December tends to be wetter, with a substantial increase in precipitation, totaling 212 mm (8.3 in) over 27 days, compared to March's 102 mm (4.0 in) over 23 days. Additionally, December's humidity is slightly higher at 70%, compared to March's 63%. For more detailed insights, you can check out San Jose weather in December.
As March unfolds in San Jose, it brings a delightful shift in weather that sets the stage for the transition into drier months. With temperatures averaging around 24°C (76°F), this month is notably warmer than the cooler rainy season months that precede it. While there's a touch of humidity at 63%, the increased warmth and precipitation days make for a vibrant landscape, even though they don't quite compare to the more intense rainfall seen later in the rainy season. This unique combination of moderate warmth and frequent showers provides a refreshing experience for visitors and locals alike. To explore more about how these conditions shape the area's overall climate, check out San Jose Climate.