Climate and monthly weather forecastDominical, Costa Rica
Climate and monthly weather forecast
The climate of Dominical
Residing within the Costa Rican province of Puntarenas, Dominical finds itself encompassed by a predominantly tropical rainforest climate, as per the Köppen Climate Classification. There are stark contrasts in several weather conditions throughout the year, creating a unique climate environment. The consistent, annual temperature fluctuations are small, acting as a stable backdrop to the more dramatic weather parameters.Because of its tropical nature, Dominical experiences very high humidity levels, up to 90% during the peak rainy season between May and November. The dry season, between February and April, sees a slight drop in humidity, down to the mid 70s%. Rainfall is a constant companion in this region, although it varies enormously from 20mm (0.79") a month in February up to a staggering 479mm (18.86") in October. The number of rainfall days corresponds with these climatic patterns, with 30 days of rain in October compared to just 11 days in February.
Being situated near the ocean, Dominical sees little variation in sea temperature, which remains comfortably warm between 28°C (82.4°F) and 29°C (84.2°F). The steady sea temperature also contributes to the high humidity levels. Unlike other parameters, sun exposure varies somewhat drastically, with levels of daylight staying near 12 hours throughout the year, while sunshine hours dip down to an average of 6.4 hours in October from a yearly high of 9.6 hours in February. The UV index remains moderate at 5-6 across the entire calendar year.
The best time to visit Dominical
The optimal time to visit Dominical is undoubtedly February through April when humidity is moderately lower, precipitation is minimal, and sunshine hours are at their highest. With daily high temperatures hovering around 25°C (77°F), and sea temperatures at a warm 28-29°C (-20.2°F), it offers a perfect environment for beachgoers, surfers, and sightseers alike. Also, increased visibility and a lower cloud cover% during this time make it an excellent period for clear views and exploring the surrounding nature.The worst time to visit Dominical
Visitors may find it difficult navigating Dominical from May to November, when the region receives the most rainfall. Humidity levels border on 90%, making the environment muggy and uncomfortable. While temperatures remain fairly consistent, the amount of daylight drastically reduces, with October seeing the least amount of sunshine at 6.4 hours on average. Additionally, frequent rainfall creates challenges for outdoor activities and travel.Spring weather in Dominical
Spring in Dominical runs from March to May, with rainfall starting to increase from 31mm (1.22") in March to a substantial 441mm (17.36") in May. Daily high and low temperatures range from 25.3°C (77.5°F) to 16.7°C (62.1°F) in March, dipping slightly to reach 23.4°C (74.1°F) and 17.4°C (63.3°F) in May. Although the amount of rainfall spikes, the sea keeps a warm temperature at 29°C (84.2°F). Therefore, despite the onset of the rainy season, spring can still be a pleasant time to visit.Summer weather in Dominical
Running from June to August, summer in Dominical is characterized by high humidity (up to 90%) and a sharp increase in the amount of rainfall, which peaks at 405mm (15.94") in June. Daily high temperature averages decline slightly to about 23°C (73.4°F), while nighttime lows remain near a warm 17°C (62.6°F). Despite the rain, daylight hours remain relatively constant, approximately 12.4-12.6 daylight hours with 6.9 to 7.4 sunshine hours.Autumn weather in Dominical
Autumn typifies the peak of the wet season from September to November. Rainfall is intensely heavy, culminating in the year’s highest at 479mm (18.86") in October. While daylight stays steady, over 50% of days are cloud-covered, reducing the sunshine duration to a mere 6.4-7.4 hours. Although the temperatures do not fluctuate significantly, high humidity, coupled with heavy rainfall, makes this period challenging for outdoor activities.Winter weather in Dominical
Winter, December through February, sees more moderate climatic conditions. A notable decrease in rainfall to 65mm (2.56") in December and up to 20mm (0.79") in February paves the way for more agreeable weather. Alongside this, humidity drops to around 77-83%, and sunshine hours increase to 8.9-9.6.hours. Coupled with temperatures that hover around a high of 25°C (77°F) and lows of roughly 15°C (59°F), winter offers a refreshing, albeit slightly cooler break from the intense rainy season.Weather in January
Starting the year, January in Dominical, Costa Rica, features lower temperatures with the high around 25.1°C (77.2°F) and the low approximately 15.3°C (59.5°F). The month gets an average of 37mm (1.46") of precipitation and experiences humidity levels of around 77%. Weather in January »Weather in February
The weather during February in Dominical, Costa Rica, remains comfortable, with a very slight rise in both high and low temperatures. Compared to January, the rainfall reduces to about 20mm (0.79"), and the relative humidity is 75%, down two percentage points from last month. Weather in February »Weather in March
March records a subtle rise in temperatures, but it is the increase in rainfall, climbing to 31mm (1.22"), that marks the transition from the dry season. However, the humidity remains stable at 75% and the sea temperature at 29°C (84.2°F). Weather in March »Weather in April
April is a turning point in Dominical's weather pattern. The city witnesses considerable rainfall, leaping to 133mm (5.24"), making this the start of the wet season. Yet the temperatures remain warm, suggesting a tropical climate pattern. Weather in April »Weather in May
May in Dominical sees a further increase in rainfall, reaching 441mm (17.36"), its peak so far for the year. While the temperatures start to gradually lower, the relative humidity soars up to 88%, indicating the thick of the rainy season. Weather in May »Weather in June
In June, Dominical, Costa Rica, experiences another high rainfall month, at 405mm (15.94"), but this doesn't stop life in this vibrant city. The temperature dips slightly and the relative humidity touches 90%, suggesting more wet days. Weather in June »Weather in July
Dominical's weather in July sees a slight drop in rainfall, recording 342mm (13.46"). Dominical, Costa Rica, can breath easier in July as the temperature takes a slight upward turn and the rainfall lessens. The humidity sticks around at 89% while the daylight hours decrease ever so slightly. Weather in July »Weather in August
August experiences a small increase in rainfall from the previous month, reaching up to 359mm (14.13"). The month continues the rainy season trend, but with a silver lining as temperatures tend to hover around the comfortable early twenties. Weather in August »Weather in September
September presents more rainfall than August with 341mm (13.43"), keeping in line with Dominical, Costa Rica's rainy season. While temperatures remain steady, the humidity reaches 90%, the highest level of the year. The months consistent rain showers breath life into the city's rich biodiversity. Weather in September »Weather in October
October marks the year's highest rainfall in Dominical, Costa Rica, with heavier showers amounting to 479mm (18.86"). October comes in with its characteristic increase in rainfall, making it a less popular time for tourists, but a favorite for the local flora. Weather in October »Weather in November
November brings a desired change to weather in Dominical, Costa Rica: a significant drop in rainfall to 189mm (7.44"), thus marking a transition towards the dry season. The reduction in rainfall results in clearer skies and relief from the prolonged monsoons of the previous months. Weather in November »Weather in December
Rounding off the year in Dominical, Costa Rica, temperatures remain in the 15 to 23°C (73.4°F) range and the rainfall drops to 65mm (2.56"), the lowest for the year. The skies become clearer as rainfall reduces, and the relative humidity drops to 83%. Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Dominical, Costa Rica
The warmest month (with the highest average high temperature) is March (26.2°C).
The month with the lowest average high temperature is October (22.2°C).
The month with the highest average low temperature is May (17.4°C).
The coldest month (with the lowest average low temperature) is January (15.3°C).
Average pressure
Dominical, Costa Rica
- Average pressure in January:
1012.1mbar - Average pressure in February:
1011.9mbar - Average pressure in March:
1011.9mbar - Average pressure in April:
1011.5mbar - Average pressure in May:
1011.3mbar - Average pressure in June:
1011.3mbar
- Average pressure in July:
1011.5mbar - Average pressure in August:
1011.4mbar - Average pressure in September:
1011.3mbar - Average pressure in October:
1011mbar - Average pressure in November:
1011.1mbar - Average pressure in December:
1011.6mbar
The month with the highest atmospheric pressure is January (1012.1mbar).
The month with the lowest atmospheric pressure is October (1011mbar).
Average wind speed
Dominical, Costa Rica
- Average wind speed in January:
5.4km/h - Average wind speed in February:
5.6km/h - Average wind speed in March:
5.4km/h - Average wind speed in April:
4.2km/h - Average wind speed in May:
3.4km/h - Average wind speed in June:
3.2km/h
- Average wind speed in July:
3.5km/h - Average wind speed in August:
3.2km/h - Average wind speed in September:
3.1km/h - Average wind speed in October:
3.3km/h - Average wind speed in November:
3.8km/h - Average wind speed in December:
4.6km/h
The windiest month (with the highest average wind speed) is February (5.6km/h).
The calmest month (with the lowest average wind speed) is September (3.1km/h).
Average humidity
Dominical, 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
Dominical, Costa Rica
- Average rainfall in January:
37mm - Average rainfall in February:
20mm - Average rainfall in March:
31mm - Average rainfall in April:
133mm - Average rainfall in May:
441mm - Average rainfall in June:
405mm
- Average rainfall in July:
342mm - Average rainfall in August:
359mm - Average rainfall in September:
341mm - Average rainfall in October:
479mm - Average rainfall in November:
189mm - Average rainfall in December:
65mm
The wettest month (with the highest rainfall) is October (479mm).
The driest month (with the least rainfall) is February (20mm).
Average rainfall days
Dominical, 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 sea temperature
Dominical, Costa Rica
The best months for swimming (with the highest average sea temperature) are March, April, May, June, August and September (29°C).
The coldest months (with the lowest average sea temperature) are January, February, July, October, November and December (28°C).
Average daylight / Average sunshine
Dominical, Costa Rica
- Average daylight in January:
11h and 42min - Average daylight in February:
11h and 48min - Average daylight in March:
12h and 6min - Average daylight in April:
12h and 18min - Average daylight in May:
12h and 36min - Average daylight in June:
12h and 42min
- Average daylight in July:
12h and 36min - Average daylight in August:
12h and 24min - Average daylight in September:
12h and 12min - Average daylight in October:
11h and 54min - Average daylight in November:
11h and 42min - Average daylight in December:
11h and 36min
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 24min - Average sunshine in February:
9h and 36min - Average sunshine in March:
9h and 24min - Average sunshine in April:
8h and 42min - Average sunshine in May:
7h and 18min - Average sunshine in June:
6h and 54min
- Average sunshine in July:
7h and 6min - Average sunshine in August:
7h and 24min - Average sunshine in September:
7h and 18min - Average sunshine in October:
6h and 24min - Average sunshine in November:
7h and 24min - Average sunshine in December:
8h and 54min
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
Dominical, 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
Dominical, 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
Dominical, 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
Dominical, Costa Rica
The months with the highest visibility are February and March (10km).
The months with the lowest visibility are September and October (7km).





