Climate Insights for Los Chiles

Los Chiles, Provincia de Alajuela, Costa Rica

Hottest
April
32°C peak
Coldest
January
22°C low
Wettest
October
352mm rain
Best to Visit
January
Mild temps & low rain

Climate Overview

The climate in Los Chiles is hot. The average annual temperature is 26°C and approximately 2364mm of precipitation falls per year. Los Chiles receives a notable amount of rainfall throughout the year, including during its driest month. Los Chiles is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: April, May, September. The coldest months are January, February, December, when temperatures can drop to 22°C.

Temperature

10° 20° 30° 40° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 28° Average: 25° Min: 22° Feb Max: 29° Average: 25° Min: 23° Mar Max: 30° Average: 26° Min: 23° Apr Max: 32° Average: 27° Min: 24° May Max: 31° Average: 27° Min: 24° Jun Max: 30° Average: 26° Min: 24° Jul Max: 29° Average: 26° Min: 24° Aug Max: 30° Average: 26° Min: 24° Sep Max: 30° Average: 26° Min: 24° Oct Max: 29° Average: 26° Min: 24° Nov Max: 29° Average: 25° Min: 23° Dec Max: 28° Average: 25° Min: 23°
Max
Average
Min

Los Chiles has relatively stable temperatures year-round, staying within a 10°C range. The warmest month is April, when average highs reach 32°C and the mean temperature sits around 27°C. January is the coolest month, with minimum temperatures around 22°C and an average of 25°C. Daily temperature variation is modest, with an average difference of 6°C between highs and lows.

Precipitation

0mm 50mm 100mm 150mm 200mm 250mm 300mm 350mm 400mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 87mm Feb Precipitation: 59mm Mar Precipitation: 51mm Apr Precipitation: 54mm May Precipitation: 317mm Jun Precipitation: 302mm Jul Precipitation: 240mm Aug Precipitation: 248mm Sep Precipitation: 278mm Oct Precipitation: 352mm Nov Precipitation: 224mm Dec Precipitation: 152mm
Precipitation

Los Chiles is a very wet location, receiving approximately 2364mm of precipitation annually, which averages out to around 197mm per month. The wettest month is October, averaging 352mm of rainfall. May and June also tend to see above-average precipitation. The driest month is March, with just 51mm. That's 301mm 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 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 3km/h Feb Wind Speed: 4km/h Mar Wind Speed: 4km/h Apr Wind Speed: 3km/h May Wind Speed: 2km/h Jun Wind Speed: 2km/h Jul Wind Speed: 3km/h Aug Wind Speed: 2km/h Sep Wind Speed: 2km/h Oct Wind Speed: 2km/h Nov Wind Speed: 2km/h Dec Wind Speed: 3km/h
Wind Speed

Los Chiles is relatively calm, with an average annual wind speed of 3km/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 4km/h, though still comfortable for most outdoor activities. The calmest conditions occur in September, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 2km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans.

Seasons

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

91 days until Autumn

It is currently summer in Los Chiles, which began on June 21, 2026. Los Chiles 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 32°C, while the coldest stretch bottoms out in January near 22°C. Autumn is next, beginning on September 23, 2026 — 91 days from now.

Spring

Temperatures range from 23 to 32°C. Rainfall is heavy, totalling around 422mm across the season with a monthly average of 141mm. Winds are generally light, averaging 3km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 24 to 30°C. Rainfall is heavy, totalling around 791mm across the season with a monthly average of 264mm. Winds are generally light, averaging 2km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 23 to 30°C. Rainfall is heavy, totalling around 854mm across the season with a monthly average of 285mm. Winds are generally light, averaging 2km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 22 to 29°C. Precipitation is moderate at around 298mm for the season, averaging 99mm per month. Winds are generally light, averaging 3km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.

Best Time to Visit

Jan 25°
Feb 25°
Mar 26°
Apr 27°
May 27°
Jun 26°
Jul 26°
Aug 26°
Sep 26°
Oct 26°
Nov 25°
Dec 25°

The best time to visit Los Chiles is during January, when the weather is most comfortable for travellers. During these months, average temperatures hover around 25°C with modest rainfall averaging 87mm per month. By contrast, April can be uncomfortably hot with temperatures reaching 32°C. Despite being the best months overall, some rain is still likely — pack a waterproof layer and plan a mix of indoor and outdoor activities.

Monthly Climate Data

The table below shows monthly climate averages for Los Chiles 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
22 °C
28 °C
3 km/h
87 mm
0 cm
Feb
23 °C
29 °C
4 km/h
59 mm
0 cm
Mar
23 °C
30 °C
4 km/h
51 mm
0 cm
Apr
24 °C
32 °C
3 km/h
54 mm
0 cm
May
24 °C
31 °C
2 km/h
317 mm
0 cm
Jun Current
24 °C
30 °C
2 km/h
302 mm
0 cm
Jul
24 °C
29 °C
3 km/h
240 mm
0 cm
Aug
24 °C
30 °C
2 km/h
248 mm
0 cm
Sep
24 °C
30 °C
2 km/h
278 mm
0 cm
Oct
24 °C
29 °C
2 km/h
352 mm
0 cm
Nov
23 °C
29 °C
2 km/h
224 mm
0 cm
Dec
23 °C
28 °C
3 km/h
152 mm
0 cm
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