Tilarán Temperature by Month
Tilarán in Guanacaste, Costa Rica enjoys a stable climate, with daytime temperatures staying close to 29°C (84°F) throughout the year. Explore the full monthly breakdown below.
Tilarán Monthly Temperatures
The climate in Tilarán remains fairly constant, offering comfortable temperatures throughout the year. Maximum daytime temperatures reach a very warm 32°C (90°F) in April, dropping to a comfortable 28°C (82°F) in January. Nighttime lows stay between 21°C (70°F) and 20°C (68°F).
The chart below illustrates the average maximum day and minimum night temperatures in Tilarán 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. April, the warmest month, gets 265 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Tilarán 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.
very warm
warm
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moderate
cold
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Tilarán vs World: Temperature Compared
Tilarán's average annual maximum temperature is 29°C (84°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.
On the cooler end, Oslo, Norway averages just 10°C (50°F) annually, with pleasant summers but long, cold winters.
Buenos Aires, Argentina averages 23°C (73°F) a year, with hot summers and mild winters — and seasons reversed compared to Europe.
Brisbane, Australia averages 26°C (79°F) a year, with warm winters and hot, humid summers.
What Does the Temperature Feel Like in Tilarán?
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 Tilarán, January is the coolest month, with average highs of 28°C (82°F) and humidity around 65% — considered high. In April, the warmest month, temperatures average 32°C (90°F) with 62% 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 Tilarán's weather — including monthly rainfall, sunshine hours, and humidity — visit our Tilarán climate page.
