Climate and monthly weather forecastChillán, Chile
Climate and monthly weather forecast
The climate of Chillán
Chillán, a city located in Chile, experiences a predominant Köppen climate classification of 'Csb'. This classification describes a Mediterranean climate, but with a warm summer. During the year, the temperature in Chillán fluctuates from a low of 4.7°C (40.5°F) to a high of 30.9°C (87.6°F). High temperatures are generally realized between December and March when the readings surpass 22.8°C (73°F) on average. Low temperatures, mainly from 4.7°C (40.5°F) to 9.8°C (49.6°F), dominate the period between June and September.The city's climate pattern is also characterized by changes in humidity, wind speeds, and pressure. Humidity ranges from 50% to 80%, with increased levels noted from May to August. The wind speed varies from 9.5km/h (5.9mph) to 12.5km/h (7.8mph) throughout the year, while the atmospheric pressure varies minimally, from 1013.8mb to 1020.1mb. Unique weather patterns in Chillán include the high rainfall amounts in June and July, reaching a peak of 178mm (7.01") in June. The city also experiences the least sunshine in June and July, with an average of 6.1 sunshine hours.
The best time to visit Chillán
Given the pleasant temperatures and relatively low rainfall, the best time to visit Chillán tends to be between December and March. During this period, visitors can expect average temperatures ranging from 20.2°C (68.4°F) to 30.9°C (87.6°F). Days are typically longer with daylight hours ranging from 13 to 14.6 and sunshine hours from 9.1 to 11.8. Rainfall in these months is at the lower end of the scale, ranging between 5mm (0.2") and 33mm (1.3") on an average of 1.8 to 5.4 days.The worst time to visit Chillán
The months between May and August might be considered the least desirable for a visit to Chillán. During this time, the city experiences the coldest temperatures, with averages from 6°C (42.8°F) to 17.3°C (63.1°F), highest rainfall amounts from 94mm (3.7") to 178mm (7.01"), and the fewest daylight and sunshine hours (ranging from 9.7 to 10.2 and 6.1 to 7.6 hours respectively). These weather conditions might hinder outdoor activities and tourism.Spring weather in Chillán
The spring months in Chillán (September to November) are characterized by relatively warm temperatures, increasing daylight hours, and declining rainfall. Temperatures rise from an average low of 5.6°C (42.1°F) in September to 9°C (48.2°F) in November, and from a high of 17.2°C (63°F) to 23.8°C (74.8°F) over the same period. Additionally, day length expands from 10.8 to 14.1 hours and sunshine from 7.8 to 9.1 hours daily. Rainfall recedes from 112mm (4.41") over 13.7 days in September to 33mm (1.3") over 5.4 days in November.Summer weather in Chillán
Summers in Chillán, from December to February, are comfortably warm and dry, making them ideal for vacationers. The city basks in high temperatures from 23.8°C (74.8°F) to 30.9°C (87.6°F) and lows from 9°C (48.2°F) to 13.4°C (56.1°F). Rainfall totals remain low in the range of 5mm (0.2") to 8mm (0.31") recorded over 1.8 to 2.6 days. Hours of daylight range from 14.1 to 14.6, aligning with rising sunlight hours from 9.1 to 11.8, presenting numerous opportunities for outdoor activities.Autumn weather in Chillán
Autumn, extending from March to May in Chillán, undergoes a gradual decline in temperature along with an increase in rainfall. The high temperatures reduce from 27.6°C (81.7°F) in March to 17.3°C (63.1°F) in May, with low temperatures following a similar pattern, from 11.4°C (52.5°F) scaling down to 8.3°C (46.9°F). Rainfall amounts rise from 7mm (0.28") in March to 94mm (3.7") in May, accounting for 2.8 to 8.9 rainy days. The daylight hours also decrease from 12.3 to 10.2 hours daily, while sunshine hours drop from 9.6 to 7.6 hours.Winter weather in Chillán
Winter months in Chillán, namely June to August, are marked by the coldest temperatures and highest rainfall. During this period, temperatures range from a low of 4.7°C (40.5°F) to a high of 14.3°C (57.7°F). Rainfall also peaks in these months, reaching maximum levels of 178mm (7.01") and 120mm (4.72") in June and July, respectively. Despite the increased rainfall, daylight hours gradually increase from 9.7 to 10.8 hours, and sunshine hours from 6.1 to 6.9, improving visibility and light conditions throughout the winter.Weather in January
As the new year commences, various exciting meteorological phenomena await Chillán, Chile. Marking the commencement of the summer season, temperatures hover near the top of their range, reaching up to 30.9°C (87.6°F). Pleasantly warm days are paired with relatively low humidity, providing the local population with myriad opportunities enjoying outdoor activities. Weather in January »Weather in February
In the month following, February constitutes the tail end of the peak summer in Chillán. The weather remains relatively similar to that witnessed in January, but subtle shifts signal the progression of the annual climatic cycles. Weather in February »Weather in March
March, the first month of the autumn in Chillán, is also a moderately hot month, with an average temperature fluctuating between 11.4°C (52.5°F) and 27.6°C (81.7°F). The beginning of March reveals an average high-temperature of a still moderately hot 27.6°C (81.7°F), showing minimal deviation from the previous month. Weather in March »Weather in April
April presents a distinct shift in the climatic patterns observed in Chillán. A sharp drop in temperature and a significant increase in rainfall signals the arrival of autumn in its full essence. Yet, it should be noted that, even though the average daily sunshine hours decrease, the city experiences considerable daylight. Weather in April »Weather in May
With May comes an intensification of autumnal climatic elements in Chillán. There is a further decrease in temperature, accompanied by a significant rise in humidity, shaping a noticeably colder atmosphere. Meanwhile, rainfall reaches its peak for the year, substantially affecting the patterns of daily life in the city. Weather in May »Weather in June
As winter takes hold, the weather in June in Chillán experiences a downward trend in temperature, reaching low averages of up to 6°C (42.8°F). Precipitation continues to be significantly high, but less intense than the peak observed in May. Weather in June »Weather in July
The heart of winter in Chillán is marked with July. The temperature drops a bit further, resulting in an air pressure increase. Rainfall slowly begins to subside, with humidity remaining quite high. Despite the winter season, sunlight duration begins to elongate, hinting at the future return of longer daylight hours. Weather in July »Weather in August
With the arrival of August, the city of Chillán begins to feel the subtle retreat of winter. Temperatures display a slight yet appreciable increase, adding a hint of warmth to cold winter days. Meanwhile, rainfall continues to decrease, leaving behind increasingly clear skies. Weather in August »Weather in September
As spring finally arrives in September, Chillán starts experiencing increasing temperatures and substantially fewer rainfall days. From a climatological perspective, it presents some of the most comfortable conditions of the year. Weather in September »Weather in October
The weather in October in Chillán is synonymous with the peak of spring. Temperatures continue their upward climb, and the city enjoys a continual decrease in rainfall. This period brings in additional daylight hours, together with reduced cloud coverage, creating a vibrant atmosphere within the city. Weather in October »Weather in November
As Chillán enters November, it begins the transition from spring to summer. Temperatures rise further, and rainfall is less than the previous months, setting a prelude to the forthcoming heat of summer. An increase in sunshine duration rejuvenates the city, providing ample opportunities for outdoor activities and excursions. Weather in November »Weather in December
Concluding the calendar year, December brings the return of summer to Chillán. Temperatures reach up to 27.6°C (81.7°F), and the weather retains minimal rainfall, with mere 12mm (0.47") across the month. High pressure, increased sunshine hours, and the longest daylight period of the year sum up the climatology for December. Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Chillán, Chile
The warmest month (with the highest average high temperature) is January (30.9°C).
The month with the lowest average high temperature is July (12.4°C).
The month with the highest average low temperature is January (13.4°C).
The coldest month (with the lowest average low temperature) is July (4.7°C).
Average pressure
Chillán, Chile
- Average pressure in January:
1014mbar - Average pressure in February:
1013.8mbar - Average pressure in March:
1015.1mbar - Average pressure in April:
1016.9mbar - Average pressure in May:
1017.8mbar - Average pressure in June:
1018.8mbar
- Average pressure in July:
1020.1mbar - Average pressure in August:
1019.8mbar - Average pressure in September:
1019.7mbar - Average pressure in October:
1018.1mbar - Average pressure in November:
1016.5mbar - Average pressure in December:
1014.9mbar
The month with the highest atmospheric pressure is July (1020.1mbar).
The month with the lowest atmospheric pressure is February (1013.8mbar).
Average wind speed
Chillán, Chile
- Average wind speed in January:
12.5km/h - Average wind speed in February:
11.5km/h - Average wind speed in March:
10.8km/h - Average wind speed in April:
10km/h - Average wind speed in May:
9.5km/h - Average wind speed in June:
11.7km/h
- Average wind speed in July:
11km/h - Average wind speed in August:
11km/h - Average wind speed in September:
10.5km/h - Average wind speed in October:
10.2km/h - Average wind speed in November:
11.3km/h - Average wind speed in December:
11.8km/h
The windiest month (with the highest average wind speed) is January (12.5km/h).
The calmest month (with the lowest average wind speed) is May (9.5km/h).
Average humidity
Chillán, Chile
The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is January (50%).
Average rainfall
Chillán, Chile
The wettest month (with the highest rainfall) is June (178mm).
The driest month (with the least rainfall) is January (5mm).
Average rainfall days
Chillán, Chile
- Average rainfall days in January:
1.8 days - Average rainfall days in February:
2.6 days - Average rainfall days in March:
2.8 days - Average rainfall days in April:
5.2 days - Average rainfall days in May:
8.9 days - Average rainfall days in June:
12.9 days
- Average rainfall days in July:
13.7 days - Average rainfall days in August:
13.7 days - Average rainfall days in September:
9.4 days - Average rainfall days in October:
8.5 days - Average rainfall days in November:
5.4 days - Average rainfall days in December:
3.4 days
The months with the highest number of rainy days are July and August (13.7 days).
The month with the least rainy days is January (1.8 days).
Average daylight / Average sunshine
Chillán, Chile
- Average daylight in January:
14h and 18min - Average daylight in February:
13h and 24min - Average daylight in March:
12h and 18min - Average daylight in April:
11h and 6min - Average daylight in May:
10h and 12min - Average daylight in June:
9h and 42min
- Average daylight in July:
9h and 54min - Average daylight in August:
10h and 48min - Average daylight in September:
11h and 54min - Average daylight in October:
13h and 0min - Average daylight in November:
14h and 6min - Average daylight in December:
14h and 36min
The month with the longest days is December (Average daylight: 14h and 36min).
The month with the shortest days is June (Average daylight: 9h and 42min).
- Average sunshine in January:
11h and 48min - Average sunshine in February:
9h and 42min - Average sunshine in March:
9h and 36min - Average sunshine in April:
9h and 6min - Average sunshine in May:
7h and 36min - Average sunshine in June:
6h and 6min
- Average sunshine in July:
6h and 24min - Average sunshine in August:
6h and 54min - Average sunshine in September:
7h and 48min - Average sunshine in October:
8h and 24min - Average sunshine in November:
9h and 6min - Average sunshine in December:
10h and 48min
The month with the most sunshine is January (Average sunshine: 11h and 48min).
The month with the least sunshine is June (Average sunshine: 6h and 6min).
Average sunshine days
Chillán, Chile
- Average sunshine days in January:
29 days - Average sunshine days in February:
25.4 days - Average sunshine days in March:
28.3 days - Average sunshine days in April:
25.2 days - Average sunshine days in May:
21.5 days - Average sunshine days in June:
16.7 days
- Average sunshine days in July:
16.5 days - Average sunshine days in August:
16.6 days - Average sunshine days in September:
19.2 days - Average sunshine days in October:
21.5 days - Average sunshine days in November:
23.3 days - Average sunshine days in December:
27.2 days
The month with the most sunshine days is January (29 days).
The month with the least sunshine days is July (16.5 days).
Average UV index
Chillán, Chile
The months with the highest UV index are January and February (UV index 6).
The months with the lowest UV index are May, June, July and September (UV index 3).
Average cloud cover
Chillán, Chile
The months with the most cloud cover are June, July and August (Cloud cover 42).
The month with the least cloud cover is January (Cloud cover 8).
Average visibility
Chillán, Chile
The months with the highest visibility are January, February, March, April, November and December (10km).
The months with the lowest visibility are May, June, July, August, September and October (9km).








