Muelle San Carlos Temperature by Month
Muelle San Carlos in Alajuela, Costa Rica enjoys a stable climate, with daytime temperatures staying close to 28°C (82°F) throughout the year. Explore the full monthly breakdown below.
Muelle San Carlos Monthly Temperatures
Year-round, Muelle San Carlos experiences a consistently comfortable climate. Maximum daytime temperatures range from a comfortable 29°C (84°F) in April to a comfortable 26°C (79°F) in the coolest month, January. Nighttime temperatures range from 20°C (68°F) in April to 19°C (66°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Muelle San Carlos by month:
The minimum temperature is often recorded between 4 AM and 6 AM, while the highest temperature is usually reached at 3 PM, when the sun's heating effect is strongest.
The chart below shows the average temperature throughout the year:
Temperature: Muelle San Carlos vs Costa Rica
The map below shows the annual temperature across Costa Rica. You can also select individual months if you want to compare a specific time of year.
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Muelle San Carlos vs World: Temperature Compared
Muelle San Carlos's average annual maximum temperature is 28°C (82°F). To put that in context, here's how it compares to a few well-known destinations:
Lisbon, Portugal averages 21°C (70°F) annually — warm summers, mild winters, and rain mainly in the cooler months.
Queenstown, New Zealand averages 10°C (50°F) annually — remember seasons are flipped, so its coldest months fall in June and July.
Osaka, Japan averages 22°C (72°F) annually, with hot humid summers, mild winters, and pleasant spring and autumn seasons.
Brisbane, Australia averages 26°C (79°F) a year, with warm winters and hot, humid summers.
What Does the Temperature Feel Like in Muelle San Carlos?
Temperature alone doesn't tell the whole story — humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.
In Muelle San Carlos, January is the coolest month, with average highs of 26°C (79°F) and humidity around 86% — considered very high. In April, the warmest month, temperatures average 29°C (84°F) with 78% humidity — conditions that feel high. For a full picture, see our humidity page.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
Whether a city sits on the coast or deep inland makes a significant difference to its climate. Coastal areas tend to have more stable temperatures year-round — large bodies of water absorb heat slowly in summer and release it gradually in winter, keeping extremes in check. Cities far from the sea don't benefit from that buffer, which is why continental climates tend to have hotter summers and colder winters than their coastal counterparts at the same latitude.
For more on Muelle San Carlos's weather — including monthly rainfall, sunshine hours, and humidity — visit our Muelle San Carlos climate page.
