Climate and monthly weather forecastOsorno, Chile

The climate of Osorno

Osorno, Chile, falls under the Köppen climate classification "Cfb," typifying a marine west coast climate with a warm summer. This geographical position close to the sea profoundly influences the area's weather, creating a significantly mild and damp year-round climate. It's worth noting that the climatic conditions display a fairly consistent pattern, characterized by well-distributed precipitation throughout the year, aptly reflected in monthly rainfall values ranging from 26mm (1.02") in January to 175mm (6.89") in June.

Regardless of the month, relative humidity remains noticeably high, oscillating between 74% in January and 91% in June and July. It complements the predominantly damp and mild conditions, especially during the colder months from April to September. The temperature oscillates moderately throughout the year. The warmest month is ostensibly January with an average high of 21.9°C (71.4°F), dipping to a low of 9.2°C (48.6°F), whereas the coldest month, July, witnesses a high of 9.5°C (49.1°F), down to a low of 3.3°C (37.9°F).

The region's wind speed generally fluctuates between 8.5km/h (5.3mph) to 10.7km/h (6.6mph), a fairly consistent pattern that lends to the overall predictability of the climate. Despite this, wind gusts can reach up to 17.6km/h (10.9mph) in August, amplifying the chill during cooler months. Visibility remains constant at around 7km (4.3mi) to 8km (5mi), attenuated only slightly during the colder months due to increased precipitation.

The best time to visit Osorno

Given the climate conditions, the optimal timeframe for visiting Osorno extends from December to February. During this period, the weather is mostly pleasant with temperatures peaking around 19.5°C (67.1°F) to 21.9°C (71.4°F), maintaining minimums from 7.5°C (45.5°F) to 9.2°C (48.6°F). Additionally, these months offer extended daylight hours of 14.4 hours to 15 hours, further enhancing touristic pursuits. Also, sunshine hours ranging from 7.1 hours to 10 hours per day offer ample opportunity for outdoor activities.

The worst time to visit Osorno

Contrarily, planning a trip to Osorno from May to July might not be the best idea due to the harshest weather conditions, prevalent during these months. High humidity levels for this period, ranging from 90% to 91%, couple with the coldest temperatures of the year, dropping to 3.3°C (37.9°F) in July and ascending to just 12.8°C (55°F) in May. Moreover, the rainfall reaches its annual peak, with values escalating to 163mm (6.42") in July and 175mm (6.89") in June, further contributing to an unfavorable environment for travel.

Spring weather in Osorno

Spring, stretching from September to November, greets Osorno with a gradual rise in temperature, moving from a high of 12.5°C (54.5°F) and a low of 3.5°C (38.3°F) in September, progressing to a high of 17.3°C (63.1°F) and a low of 6.2°C (43.2°F) in November. It is also a season of long days, characterized by daylight hours increasing from 11.8 hours to 14.4 hours. However, precipitation remains relatively significant, scaling from 75mm (2.95") to 60mm (2.36") across the season.

Summer weather in Osorno

Summer in Osorno spans December through February, often presenting the most favorable weather conditions. From high temperatures of 19.5°C (67.1°F) to 21.9°C (71.4°F) and lows between 7.5°C (45.5°F) and 9.2°C (48.6°F), summer days are typically mild and inviting. Further complementing these ideal temperatures are the longest daylight hours- ranging from 14.4 hours to 15 hours, along with substantial sunshine hours spanning between 7.1 hours in February to 10 hours per day in December.

Autumn weather in Osorno

March through May marks the transition to autumn in Osorno, characterized by cooling temperatures that oscillate between highs from 19.8°C (67.6°F) to 12.8°C (55°F) and lows within the range of 8.3°C (46.9°F) to 6.3°C (43.3°F). As the season advances, daylight hours reduce from 12.3 hours to 9.9 hours, with corresponding sunshine hours also diminishing from 7.7 hours to 4.9 hours per day. It's important to note that the rainfall starts to intensify during this season, with values increasing from 46mm (1.81") in March to a substantial 129mm (5.08") by May.

Winter weather in Osorno

Osorno's winter, running from June to August, is marked by high precipitation and cold temperatures. An average high temperature between 10°C (50°F) and 9.5°C (49.1°F) and a low temperature from 4.5°C (40.1°F) to 3.3°C (37.9°F) characterizes the winter months. Correspondingly, the winter climate is supplemented with the heaviest precipitation of the year, peaking at 175mm (6.89") in June and residing at 160mm (6.3") in August. Although daylight hours witness a marginal resurgence, it's still comparatively low, ranging from 9.3 hours to 10.6 hours, with average sunshine hours spanning between 3.5 hours to 5.1 hours per day.

Weather in January

January in Osorno, Chile, is the month with the highest temperature, reaching up to 21.9°C (71.4°F). This month stands firm on the threshold of the summer season with longer daylight hours, offering ample time to immerse in the great outdoors. Weather in January »

Weather in February

In February, average temperatures remain consistent with January's highs. Still, there is a marginal increase in rainfall amounting to 38mm (1.5"), likely due to climate variability. The city's unique geographical location ensures that downpours are scattered and interspersed with periods of sunshine and clear skies. Weather in February »

Weather in March

A slight dip in average temperature marks the arrival of March in Osorno. As the city inches towards Autumn, the frequency of rainfall and humid days increases, correlating directly to seasonal changes. With this transition, outdoor activities may require more planning. Weather in March »

Weather in April

Osorno experiences notable changes in its weather pattern come April. The city witnesses a distinctive transition to the cooler season with an average low temperature of 7.3°C (45.1°F). Simultaneously, April ushers in increased rainfall, setting the rhythm of autumn showers throughout the month. Weather in April »

Weather in May

May marks the onset of Winter in Osorno, which sees a further decrease in temperatures with lows averaging at 6.3°C (43.3°F). The relative humidity hits a high of 90%, defining the local atmosphere's moisture-laden characteristic. Weather in May »

Weather in June

June experiences more rainfall, registering a high of 175mm (6.89"). The transition towards chillier weather continues with average low temperatures settling at 4.5°C (40.1°F), introducing a frigid streak to Osorno's weather. Meanwhile, shorter daylight hours underline the winter season's dominance, with the reduced exposure to sunshine being palpable. Weather in June »

Weather in July

July’s temperatures in Osorno remain nearly consistent with June, with lows averaging 3.3°C (37.9°F). The intensity of the winter manifests with a heavier cloud cover, reducing the city's exposure to sunlight. A predominant winter character defines this month, marked by chilliness and increased rainfall days. Weather in July »

Weather in August

August in Osorno brings slight relief from the Winter's grip, with marginally higher average low temperature of 3.7°C (38.7°F). With the cloud cover remaining dense, the amount of sunshine each day shows a slight increase from the last month. Weather in August »

Weather in September

September's arrival in Osorno heralds considerable changes in weather patterns, with warmer temperatures and reduced rainfall. The city warms up to Spring with rising temperatures and decreased precipitation signifying a positive transition. Weather in September »

Weather in October

October ensures a steady crawl towards warmer days in Osorno, as the average temperature peaks to 15.1°C (59.2°F). As the city basks in sunshine for extended hours, the relative humidity steadily drops, offering a dryer environment. Weather in October »

Weather in November

As summer feels a stone’s throw away, November brings higher average temperatures to Osorno, nearing 17.3°C (63.1°F). Although some days might feel exceptionally warm, cool winds provide a balancing act, preventing any discomfort. Weather in November »

Weather in December

December signals the return of summer to Osorno, with temperatures peaking at 19.5°C (67.1°F). Surfacing as one of the driest months with reduced rainfall of 50mm (1.97"), December embraces a serene atmosphere. The cloud cover decreases significantly, allowing an ample number of sunshine hours through. Weather in December »