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Contents
- The climate of Rivas
- The best time to visit Rivas
- The worst time to visit Rivas
- Spring weather in Rivas
- Summer weather in Rivas
- Autumn weather in Rivas
- Winter weather in Rivas
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
The climate of Rivas
Rivas, Costa Rica, falls under the Tropical rainforest or Af Köppen climate classification. This geographical hotspot exhibits a hot, humid and precipitation-rich climate throughout the like, line with its tropical position. The virtually year-round high temperatures vary slightly, consistently staying between 72°F (22.2°C) and 79.2°F (26.2°C). The colder times still maintain a toasty warmth, with the temperatures steadily hovering around from 59.5°F (15.3°C) to 63.3°F (17.4°C).
Precipitation defines Rivas’s climate, with a minimum monthly average of 0.79" (20mm) in the drier times reaching an impressive peak of 18.86" (479mm) in the rainiest periods. Humidity also stays relatively high, with average values floating between 75% and 91% during the year. Such constant high humidity contributes to a distinctive feel of the tropical climate.
The sunlight exposure in Rivas displays a more constant pattern, with the daylight hours slightly fluctuating from 11.6 hours to 12.7 hours. There's an appreciable reduction in the sunshine duration from 9.6 hours to 6.4 hours over the course of the year. As for the cloud cover, it increases during certain periods, with an increase in cloud percentage from 22% to 59%.
Rivas also boasts quiet winds, with wind speeds not exceeding 3.5mph (5.6km/h), making it an ideal getaway for those seeking respite from strong wind conditions.
Precipitation defines Rivas’s climate, with a minimum monthly average of 0.79" (20mm) in the drier times reaching an impressive peak of 18.86" (479mm) in the rainiest periods. Humidity also stays relatively high, with average values floating between 75% and 91% during the year. Such constant high humidity contributes to a distinctive feel of the tropical climate.
The sunlight exposure in Rivas displays a more constant pattern, with the daylight hours slightly fluctuating from 11.6 hours to 12.7 hours. There's an appreciable reduction in the sunshine duration from 9.6 hours to 6.4 hours over the course of the year. As for the cloud cover, it increases during certain periods, with an increase in cloud percentage from 22% to 59%.
Rivas also boasts quiet winds, with wind speeds not exceeding 3.5mph (5.6km/h), making it an ideal getaway for those seeking respite from strong wind conditions.
The best time to visit Rivas
Given the combination of weather parameters, tourists might find the period between December through March as the most suitable for visiting Rivas. During these months, rainfall is moderately lower, ranging between 0.79" (20mm) and 2.56" (65mm) while the daily average temperature hovers around a pleasant 72.7°F (22.6°C) to 79.2°F (26.2°C). These conditions, coupled with longer sunshine hours nearing 9.4 hours to 8.9 hours and lower cloud cover from 24% to 34%, promise fulfilling exploration and outdoor activity opportunities.
The worst time to visit Rivas
Conversely, the months from May through October aren't ideal for tourist visits. These months record the heaviest rainfall with amounts ballooning from 13.46" (342mm) to a peak of 18.86" (479mm). The skyrocketing cloud percentage (from 52% to 59%), coupled with the lowest sunshine durations (from 7.3 hours to 6.4 hours), create a general dampness and limitations for outdoor pursuits.
Spring weather in Rivas
Spring in Rivas, occurring in March through May, ushers in a significant surge in rainfall. March begins with modest rainfall of 1.22" (31mm), which rapidly soars to 17.36" (441mm) by May. Both temperature and humidity rise slightly, with peak temperatures reaching from 77.5°F (25.3°C) to 74.1°F (23.4°C) and humidity creeping from 80% to 88%. As the season progresses, daylight hours remain plentiful, ranging from 12.3 hours to 12.6 hours, while the sunshine duration decrease slightly from 8.7 hours to 7.3 hours.
Summer weather in Rivas
June ushers in the summer season with tropical flair. The rainfall remains quite high, with amounts ranging from 15.94" (405mm) to 14.13" (359mm) from June through August. Despite the high rainfall, the temperatures remain stable, providing warmth from 73.2°F (22.9°C) to 73.4°F (23°C). Humidity levels increase to a higher bracket of 90% to 89%. On the positive side, sunshine hours remain relatively stable regardless of cloud cover increase, with sunshine hours spanning from 6.9 hours to 7.4 hours.
Autumn weather in Rivas
September through November, the autumn season in Rivas, is characterized by the highest rainfall levels. Precipitation appreciation ranges from 13.43" (341mm) in September to a whopping 18.86" (479mm) in October before tapering to 7.44" (189mm) in November. However, temperatures remain characteristically stable, varying just slightly from 72.5°F (22.5°C) to 72.7°F (22.6°C). Daylight dwindles slightly from 12.2 hours in September to 11.7 hours in November.
Winter weather in Rivas
Winter descends on Rivas from December through February. The season is marked by a significant reduction in rainfall, standing at 2.56" (65mm) in December and gradually rising to 1.46" (37mm) by February. Despite being the coldest time in Rivas, the temperatures still remain warm, fluctuating from 72.7°F (22.6°C) to 78.4°F (25.8°C). Sunshine duration enjoys an increase, with figures staying within the range of 7.4 hours to 9.6 hours. The winter season in Rivas shows why Costa Rica is truly a tropical paradise.
Weather in January
Surrounded by pleasant weather, Rivas, Costa Rica greets the new year with slightly cooler temperatures. The daylight stretches for 11.6 hours, allowing enough time for outdoor activities. Comparatively, this month experiences lower rainfall, recording only 1.46" (37mm), making it a dry start to the year compared to the following months. Weather in January »
Weather in February
February continues the trend of cool weather and relatively dry conditions from January in Rivas. With daylight slightly increasing to 11.8 hours, outdoor explorations extend a little longer. Notably, the rainfall significantly decreases, showing a drop from 1.46" (37mm) in January to 0.79" (20mm). Weather in February »
Weather in March
Transitioning from the cool February, March experiences a slight rise in temperature setting the stage for the oncoming summer season. Again, the daylight hours increase to 12.1, providing ample sunlight. There is a noticeable increase in rainfall, rising to 1.22" (31mm), giving a hint towards the forthcoming wet season. Weather in March »
Weather in April
April in Rivas becomes significantly wetter as it marks the beginning of the rainy season. Consequently, the precipitation soars steeply, from 1.22" (31mm) in March to 5.24" (133mm), signaling a shift to wetter conditions. The temperatures remain stable without much fluctuation, ensuring continued comfort. Weather in April »
Weather in May
Experiencing the highest rainfall, May in Rivas is marked by wet and humid conditions. The ample moisture coupled with the warm temperature makes this month feel a bit sultry. Due to the heavy precipitation, outdoor activities might require planning in accordance with the weather. Weather in May »
Weather in June
June in Rivas is characterized by cloud-covered skies and frequent rain. Despite this, temperatures remain stable ensuring comfort irrespective of rain or shine. Even though the precipitation decreases marginally from 17.36" (441mm) in May to 15.94" (405mm), this doesn't significantly impact the overall moist conditions. Weather in June »
Weather in July
As the rainy season continues, July follows the weather pattern established by June. The rainfall lessens slightly to 13.46" (342mm), yet it remains a wet month. With the relative humidity being consistently high, the clamminess in the air prevails. Weather in July »
Weather in August
Rivas in August experiences a trend of decreasing rainfall, although the amount is still substantial. The town remains under the umbrella of the rainy season, which clearly impacts the outdoor activities. Despite the reduction in rainfall to 14.13" (359mm), it doesn't have much of a significant effect on the overall weather scenario. Weather in August »
Weather in September
The trend of lowering rainfall continues in September, offering a slight break in the rain-soaked August. Though the rainfall decreases to 13.43" (341mm), it remains a month characteristic of the wet season. A few degrees drop in the temperature creates cooler evenings, giving residents and tourists a pleasant respite. Weather in September »
Weather in October
Receiving the highest level of humidity, October is the most humid month in Rivas, Costa Rica. The month is marked by a relatively high 18.86" (479mm) of rainfall heightening the humid conditions. This weather coupled with warm temperatures contributes to a steamy climate. Weather in October »
Weather in November
November brings a dramatic shift in the weather of Rivas with a decrease in rainfall, signaling the approaching end of the rainy season. The drop in rainfall to 7.44" (189mm) brings about prominently drier conditions compared to the wetter October. Weather in November »
Weather in December
December marks the end of the rainy season in Rivas, Costa Rica, with a substantial decline in rainfall to just 2.56" (65mm). While temperatures show a downward trend, the weather remains agreeable for outdoor activities. The arrival of the dry season ensures the daylight hours remain adequate for the lengthy exploration of the town. Weather in December »
Frequently asked questions
How many days does it rain in Rivas?
Throughout the year, there are 294.6 rainfall days, and 111.89" (2842mm) of precipitation is accumulated.
What is the month with the lowest UV index in Rivas?
The months with the lowest UV index in Rivas are January, February, May through December, with an average maximum UV index of 5.
What is the least humid month in Rivas?
February and March, with an average relative humidity of 75%, are the least humid months.
What is the driest month in Rivas?
The month with the least rainfall is February, when the rain falls for 11.4 days and typically collects 0.79" (20mm) of precipitation.
What month has the most sunshine in Rivas?
The month with the most sunshine in Rivas, Costa Rica, is February, with an average of 9.6h of sunshine.
What part of the year is the hottest in Rivas?
March is Rivas's warmest month, registering average high temperatures of 79.2°F (26.2°C) and lows of 59.9°F (15.5°C).
What are the months with the highest UV index in Rivas?
The months with the highest UV index in Rivas, Costa Rica, are March and April, with an average maximum UV index of 6.
When are the longest days in Rivas?
With an average of 12h and 42min of daylight, June has the longest days of the year in Rivas, Costa Rica.
What is the coldest time of year in Rivas?
Rivas's coldest month, October, registers temperatures that range from a high of 72°F (22.2°C) to a low of 62.8°F (17.1°C).
What is the most humid month in Rivas?
The most humid month in Rivas, Costa Rica, is October, with an average relative humidity of 91%.
What is the wettest month in Rivas?
October is the month with the most rainfall in Rivas. Rain falls for 30.5 days and accumulates 18.86" (479mm) of precipitation.
What is the month with the least sunshine in Rivas?
October has the least sunshine of the year in Rivas, Costa Rica, with an average of 6.4h of sunshine.
What is the month with the shortest days in Rivas?
The month with the shortest days in Rivas is December, with an average of 11h and 36min of daylight.
Is there Daylight Saving Time (DST) in Rivas?
Rivas does not observe Daylight Saving Time (DST). CST timezone is used throughout the entire year.
Average temperature
Rivas, Costa Rica
The warmest month (with the highest average high temperature) is March (79.2°F).
The month with the lowest average high temperature is October (72°F).
The month with the highest average low temperature is May (63.3°F).
The coldest month (with the lowest average low temperature) is January (59.5°F).
Average pressure
Rivas, Costa Rica
- Average pressure in January:
29.89"Hg - Average pressure in February:
29.88"Hg - Average pressure in March:
29.88"Hg - Average pressure in April:
29.87"Hg - Average pressure in May:
29.86"Hg - Average pressure in June:
29.86"Hg
- Average pressure in July:
29.87"Hg - Average pressure in August:
29.87"Hg - Average pressure in September:
29.86"Hg - Average pressure in October:
29.85"Hg - Average pressure in November:
29.86"Hg - Average pressure in December:
29.87"Hg
The month with the highest atmospheric pressure is January (29.89"Hg).
The month with the lowest atmospheric pressure is October (29.85"Hg).
Average wind speed
Rivas, Costa Rica
- Average wind speed in January:
3.4mph - Average wind speed in February:
3.5mph - Average wind speed in March:
3.4mph - Average wind speed in April:
2.6mph - Average wind speed in May:
2.1mph - Average wind speed in June:
2mph
- Average wind speed in July:
2.2mph - Average wind speed in August:
2mph - Average wind speed in September:
1.9mph - Average wind speed in October:
2.1mph - Average wind speed in November:
2.4mph - Average wind speed in December:
2.9mph
The windiest month (with the highest average wind speed) is February (3.5mph).
The calmest month (with the lowest average wind speed) is September (1.9mph).
Average humidity
Rivas, Costa Rica
The month with the highest relative humidity is October (91%).
The months with the lowest relative humidity are February and March (75%).
Average rainfall
Rivas, Costa Rica
- Average rainfall in January:
1.46" - Average rainfall in February:
0.79" - Average rainfall in March:
1.22" - Average rainfall in April:
5.24" - Average rainfall in May:
17.36" - Average rainfall in June:
15.94"
- Average rainfall in July:
13.46" - Average rainfall in August:
14.13" - Average rainfall in September:
13.43" - Average rainfall in October:
18.86" - Average rainfall in November:
7.44" - Average rainfall in December:
2.56"
The wettest month (with the highest rainfall) is October (18.86").
The driest month (with the least rainfall) is February (0.79").
Average rainfall days
Rivas, Costa Rica
- Average rainfall days in January:
13.8 days - Average rainfall days in February:
11.4 days - Average rainfall days in March:
15.8 days - Average rainfall days in April:
24.3 days - Average rainfall days in May:
30.8 days - Average rainfall days in June:
29.8 days
- Average rainfall days in July:
30.7 days - Average rainfall days in August:
30.9 days - Average rainfall days in September:
29.5 days - Average rainfall days in October:
30.5 days - Average rainfall days in November:
27.5 days - Average rainfall days in December:
19.6 days
The month with the highest number of rainy days is August (30.9 days).
The month with the least rainy days is February (11.4 days).
Average daylight / Average sunshine
Rivas, Costa Rica
- Average daylight in January:
11h and 4min - Average daylight in February:
11h and 5min - Average daylight in March:
12h and 1min - Average daylight in April:
12h and 2min - Average daylight in May:
12h and 4min - Average daylight in June:
12h and 4min
- Average daylight in July:
12h and 4min - Average daylight in August:
12h and 2min - Average daylight in September:
12h and 1min - Average daylight in October:
11h and 5min - Average daylight in November:
11h and 4min - Average daylight in December:
11h and 4min
The month with the longest days is June (Average daylight: 12h and 42min).
The month with the shortest days is December (Average daylight: 11h and 36min).
- Average sunshine in January:
9h and 2min - Average sunshine in February:
9h and 4min - Average sunshine in March:
9h and 2min - Average sunshine in April:
8h and 4min - Average sunshine in May:
7h and 2min - Average sunshine in June:
6h and 5min
- Average sunshine in July:
7h and 1min - Average sunshine in August:
7h and 2min - Average sunshine in September:
7h and 2min - Average sunshine in October:
6h and 2min - Average sunshine in November:
7h and 2min - Average sunshine in December:
8h and 5min
The month with the most sunshine is February (Average sunshine: 9h and 36min).
The month with the least sunshine is October (Average sunshine: 6h and 24min).
Average sunshine days
Rivas, Costa Rica
- Average sunshine days in January:
13.8 days - Average sunshine days in February:
14.5 days - Average sunshine days in March:
11.6 days - Average sunshine days in April:
3 days - Average sunshine days in May:
0.1 days - Average sunshine days in June:
0.1 days
- Average sunshine days in July:
0.2 days - Average sunshine days in August:
0 days - Average sunshine days in September:
0.5 days - Average sunshine days in October:
0.3 days - Average sunshine days in November:
1.8 days - Average sunshine days in December:
8.7 days
The month with the most sunshine days is February (14.5 days).
The month with the least sunshine days is August (0 days).
Average UV index
Rivas, Costa Rica
The months with the highest UV index are March and April (UV index 6).
The months with the lowest UV index are January, February, May, June, July, August, September, October, November and December (UV index 5).
Average cloud cover
Rivas, Costa Rica
The month with the most cloud cover is October (Cloud cover 59).
The month with the least cloud cover is February (Cloud cover 22).
Average visibility
Rivas, Costa Rica
The months with the highest visibility are January, February, March, April and December (6mi).
The months with the lowest visibility are September and October (4mi).
Rivas, Costa Rica
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