Climate Insights for Tilarán

Tilarán, Provincia de Guanacaste, Costa Rica

Hottest
April
30°C peak
Coldest
February
20°C low
Wettest
October
350mm rain
Best to Visit
January, February, March
Mild temps & low rain

Climate Overview

The climate in Tilarán is warm and mild. The average annual temperature is 24°C and approximately 1853mm of precipitation falls per year. October is the wettest month, receiving around 350mm of rainfall. Tilarán is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: April, May, March. The coldest months are February, January, March, when temperatures can drop to 20°C.

Temperature

10° 15° 20° 25° 30° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 27° Average: 23° Min: 20° Feb Max: 28° Average: 24° Min: 20° Mar Max: 29° Average: 24° Min: 21° Apr Max: 30° Average: 25° Min: 22° May Max: 30° Average: 25° Min: 22° Jun Max: 28° Average: 25° Min: 22° Jul Max: 28° Average: 24° Min: 22° Aug Max: 28° Average: 24° Min: 22° Sep Max: 29° Average: 24° Min: 22° Oct Max: 28° Average: 24° Min: 22° Nov Max: 27° Average: 24° Min: 21° Dec Max: 27° Average: 24° Min: 21°
Max
Average
Min

Tilarán has relatively stable temperatures year-round, staying within a 10°C range. The warmest month is April, when average highs reach 30°C and the mean temperature sits around 25°C. February is the coolest month, with minimum temperatures around 20°C and an average of 24°C. Daily temperature variation is modest, with an average difference of 7°C between highs and lows.

Precipitation

0mm 50mm 100mm 150mm 200mm 250mm 300mm 350mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 16mm Feb Precipitation: 7mm Mar Precipitation: 8mm Apr Precipitation: 43mm May Precipitation: 222mm Jun Precipitation: 298mm Jul Precipitation: 164mm Aug Precipitation: 227mm Sep Precipitation: 266mm Oct Precipitation: 350mm Nov Precipitation: 190mm Dec Precipitation: 62mm
Precipitation

Tilarán is a fairly wet location, receiving approximately 1853mm of precipitation annually, which averages out to around 154mm per month. The wettest month is October, averaging 350mm of rainfall. June and September also tend to see above-average precipitation. The driest month is February, with just 7mm. That's 343mm less than October, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Wind

0km/h 5km/h 10km/h 15km/h 20km/h 25km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 23km/h Feb Wind Speed: 23km/h Mar Wind Speed: 22km/h Apr Wind Speed: 17km/h May Wind Speed: 12km/h Jun Wind Speed: 11km/h Jul Wind Speed: 14km/h Aug Wind Speed: 12km/h Sep Wind Speed: 9km/h Oct Wind Speed: 9km/h Nov Wind Speed: 13km/h Dec Wind Speed: 20km/h
Wind Speed

Tilarán is mildly breezy, with an average annual wind speed of 15km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 23km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in October, with average winds dropping to 9km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 14km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 22km/h in winter, 17km/h in spring, 12km/h in summer, 10km/h in autumn.

Seasons

Winter
Dec 21
Spring
Mar 20
Summer
Jun 21
Autumn
Sep 23

89 days until Summer

It is currently spring in Tilarán, which began on March 20, 2026. Tilarán is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in April at around 30°C, while the coldest stretch bottoms out in February near 20°C. Summer is next, beginning on June 21, 2026 — 89 days from now.

Spring

Temperatures range from 21 to 30°C. Precipitation is moderate at around 273mm for the season, averaging 91mm per month. Winds are moderate at around 17km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 22 to 28°C. Rainfall is heavy, totalling around 689mm across the season with a monthly average of 230mm. Winds are generally light, averaging 12km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 21 to 29°C. Rainfall is heavy, totalling around 806mm across the season with a monthly average of 269mm. Winds are generally light, averaging 10km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 20 to 28°C. Rainfall is relatively light, with around 85mm over the season and a monthly average of 28mm. Winds are moderate at around 22km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.

Best Time to Visit

Jan 23°
Feb 24°
Mar 24°
Apr 25°
May 25°
Jun 25°
Jul 24°
Aug 24°
Sep 24°
Oct 24°
Nov 24°
Dec 24°

The best time to visit Tilarán is during January, February, March and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 24°C with modest rainfall averaging 23mm per month. By contrast, April can be uncomfortably hot with temperatures reaching 30°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

Monthly Climate Data

The table below shows monthly climate averages for Tilarán based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.

Month
Min Temperature
Max Temperature
Wind Speed
Precipitation
Snow
Jan
20 °C
27 °C
23 km/h
16 mm
0 cm
Feb
20 °C
28 °C
23 km/h
7 mm
0 cm
Mar Current
21 °C
29 °C
22 km/h
8 mm
0 cm
Apr
22 °C
30 °C
17 km/h
43 mm
0 cm
May
22 °C
30 °C
12 km/h
222 mm
0 cm
Jun
22 °C
28 °C
11 km/h
298 mm
0 cm
Jul
22 °C
28 °C
14 km/h
164 mm
0 cm
Aug
22 °C
28 °C
12 km/h
227 mm
0 cm
Sep
22 °C
29 °C
9 km/h
266 mm
0 cm
Oct
22 °C
28 °C
9 km/h
350 mm
0 cm
Nov
21 °C
27 °C
13 km/h
190 mm
0 cm
Dec
21 °C
27 °C
20 km/h
62 mm
0 cm
Airpult

Get accurate weather forecasts worldwide with real-time updates and severe weather alerts. Covering 6M+ locations with precise, reliable weather data.

© 2026 Samuenti GmbH. All rights reserved.

gb English
Metric (°C, km/h)