Climate and monthly weather forecast
Riobamba, Ecuador

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The climate of Riobamba

Situated in the mountainous region of Ecuador, the city of Riobamba rests in the predominantly Cfb climate according to the Köppen climate classification system, known as a marine west coast climate, with pleasant summers. This marine west coast climate exhibits comfortable, moderate temperatures throughout the year. Nevertheless, certain weather factors, including rainfall and temperatures, shift according to the changing seasons.

A review of the annual temperature range indicates remarkably consistent figures, with high temperatures in all months fluctuating from 11.8°C (53.2°F) to 13.6°C (56.5°F), and low temperatures ranging from 3.8°C (38.8°F) to 6.4°C (43.5°F). Humidity levels remain fairly constant year-round, standing around 85%. Rainfall varies throughout the months, with the highest precipitation in March of 223mm (8.78") and the lowest in August at 46mm (1.81").

There is an observable distinction between months when it comes to snowfall, with heavier snow in winter, in December measuring 96mm (3.78"), and lesser measures in late summer, falling to as low as 18mm (0.71") in September. Similarly, daylight duration and sunshine hours remain in a close range throughout the year, from 12 hours to 12.2 hours of daylight and 6.6 hours to 9.5 hours of sunshine. The range of UV index moves between 2 and 3 indicating a generally low UV radiation levels.

The best time to visit Riobamba

Considering all climatic variables, the most favorable period to visit Riobamba would align with the city's lower rainfall, higher sunshine hours, and balanced temperatures. These conditions occur around the time of August, when rainfall decreases to 46mm (1.81") and sunshine hours peak at 8.7 hours per day. Moreover, the temperature rests at a comfortable high of 12.5°C (54.5°F) and a low of 3.8°C (38.8°F), providing a weather condition that is comfortable yet not overly hot or cold.

The worst time to visit Riobamba

On the other hand, March might prove less desirable for travelers seeking to avoid high rainfall rates, as it records the highest precipitation levels of 223mm (8.78"). Additionally, it offers limited sunshine at 7.2 hours per day and has higher humidity at 87%. Hence, although its temperatures remain agreeable at a high of 13°C (55.4°F) and a low of 6.4°C (43.5°F), frequent precipitation, high humidity levels, and reduced sunshine hours may detract from the outdoor exploration experience.

Spring weather in Riobamba

Springtime in Riobamba, specifically from March to May, corresponds with a period of ample rainfall and moderate temperatures. Rainfall hits its highest peak in March at 223mm (8.78") and gradually decreases to 151mm (5.94") by May. Meanwhile, average high temperatures in this season hover around 13°C (55.4°F), with minimum temperatures averaging from 6.4°C (43.5°F) to 5.8°C (42.4°F). Days still have ample daylight at 12.1 hours to 12 hours.

Summer weather in Riobamba

The summer months of June, July, and August present a shift in Riobamba's weather pattern. Rainfall decreases significantly, particularly in August, when it measures only 46mm (1.81"). High temperatures range from 12.1°C (53.8°F) to 12.5°C (54.5°F) and humidity declines slightly. Additionally, there's a notable increase in sunshine hours, reaching up to 8.7 hours in August, offering longer sunny days for exploring Riobamba's landscape.

Autumn weather in Riobamba

Autumn in Riobamba, from September to November, experiences an increase in rainfall, peaking at 179mm (7.05") in November. Nevertheless, there persists a consistency in temperature levels with highs from 13.3°C (55.9°F) to 13.6°C (56.5°F) and lows from 4.5°C (40.1°F) to 5.8°C (42.4°F). Sunshine hours decrease slightly, yet the city retains long daylight hours of approximately 12.2 hours per day.

Winter weather in Riobamba

Winter, from December to February, in Riobamba, exhibits higher snowfall levels, especially in December with 96mm (3.78") but corresponds with comparatively lower rainfall from 155mm (6.1") to 160mm (6.3"). Daylight duration sustains around 12.2 hours, while sunshine hours decrease. temperatures retain their moderate range with highs around 12.6°C (54.7°F), and lows vary from 5.4°C (41.7°F) to 6.4°C (43.5°F), contributing to chilly but not freezing conditions.

Weather in January

The New Year in Riobamba, Ecuador, brings with it relatively cool temperatures and a high chance of rainfall. The high amount of cloud cover, reaching around 47% in January, usually leads to damp, overcast conditions. Despite acidic rainfall from 160mm (6.3") to 187mm (7.36"), the city experiences fallen snow peaking at 106mm (4.17") in days characterized with approximately 3.8 days of snowfall. Weather in January »

Weather in February

In Riobamba, Ecuador, the weather conditions in February slightly improve from January. Although there is still a significant amount of cloud cover, there is a marginal drop in the relative humidity. Snowfall reaches up to 55mm (2.17") during February on about 2.3 days, a mild reduction from January's snowy days. Weather in February »

Weather in March

As the city of Riobamba, Ecuador moves into March, the rainfall intensifies, reaching up to 223mm (8.78"), coupled with higher humidity levels peaking at 87%. Though it is a month characterized by frequent rain showers, the frequency of snowy days remains constant from February, maintaining the cool weather patterns. Weather in March »

Weather in April

April's weather in Riobamba, Ecuador is defined by steady patterns, with a minor reduction in rainfall from March’s peak. The amount of snowfall increases mildly, reaching 56mm (2.2"), showing a subtle hint of more wintry weather. Weather in April »

Weather in May

In Riobamba, Ecuador, May brings a reprieve from the prevalent rainy weather. There is a noticeable decrease in both rainfall and snowfall compared to April, with the snow accumulating up to 66mm (2.6"). Despite the persistent high cloud cover, the amount of sunshine hours sees a slight increase, bringing more brightness to the city. Weather in May »

Weather in June

June in Riobamba, Ecuador continues the reducing trend of rainfall and snowfall. Despite 65mm (2.56") snowfall accumulated during about 3.6 snowy days, a notable decrease in the relative humidity brings a dry touch to the climatic equation. Weather in June »

Weather in July

Despite being in the heart of the year, Riobamba, Ecuador experiences cooler temperatures in July, accompanied by the year’s lowest rainfall. The frequency and amount of snowfall reduce from June to just 22mm (0.87"), marking a distinct dry spell in the city's weather. Weather in July »

Weather in August

Mid-year in Riobamba, Ecuador, poses a continuation of the weather experienced in July. A slight decrease in wind speed complements the relative temperatures and the least rainfall recorded in the year. Snowfall drops mildly in August, only amounting to 19mm (0.75") of snowy precipitation on an estimated number of 2.3 days. Weather in August »

Weather in September

The weather in September in Riobamba, Ecuador witnesses a small uptick in rainfall from the drier August. Despite this increase, the amount of snowfall remains steady at 18mm (0.71"), confirming September as the month with the year's least snowfall. Weather in September »

Weather in October

Entering the last quarter of the year, Riobamba, Ecuador experiences a sharp rise in rainfall in October, almost tripling that of September. Despite the sudden shift to a wetter climate, the degree of snowfall only mildly increases from the previous month to 58mm (2.28"). Weather in October »

Weather in November

In November, the city of Riobamba, Ecuador, endures increased rainfall, coming in second only to the highest rainfall month, March. Despite the wet conditions, snowfall records an upward tick at 92mm (3.62"), more than October, but lesser than the start of the year. Weather in November »

Weather in December

Riobamba, Ecuador, concludes the year in a festive cloud of cooler temperatures and persisting rainfall. The snowfall retreats slightly from the November peak, recording 96mm (3.78") in December. The windy conditions from the past months have dissipated considerably, maintaining an average speed. Weather in December »

Frequently asked questions

How many days does it rain in Riobamba?

Throughout the year, there are 327.5 rainfall days, and 1706mm (67.17") of precipitation is accumulated.

When does it snow in Riobamba?

January through December are months with snowfall.

When does it snow the most in Riobamba?

January is the month with the most snowfall. Snow falls for 3.8 days and accumulates 106mm (4.17") of snow.

How many days does it snow in Riobamba?

Throughout the year, in Riobamba, Ecuador, there are 37.4 snowfall days, and 694mm (27.32") of snow is accumulated.

When is the highest UV index in Riobamba?

The months with the highest UV index in Riobamba are January, March, May, June, August through October, with an average maximum UV index of 3.

When is the lowest UV index in Riobamba?

The months with the lowest UV index are February, April, July, November and December, with an average maximum UV index of 2.

What is the wettest month in Riobamba?

March is the month with the most rainfall in Riobamba, Ecuador. Rain falls for 30.8 days and accumulates 223mm (8.78") of precipitation.

What is the most humid month in Riobamba?

April is the most humid month in Riobamba, Ecuador, with an average relative humidity of 88%.

What is the month with the least sunshine in Riobamba?

The month with the least sunshine in Riobamba is April, with an average of 6.6h of sunshine.

What is the month with the shortest days in Riobamba?

June has the shortest days of the year, with an average of 12h and 0min of daylight.

What is the coldest month in Riobamba?

Riobamba reaches its average lowest temperatures in July, measuring 11.8°C (53.2°F) at the peak and 4.3°C (39.7°F) at the lowest.

What is the driest month in Riobamba?

August is the month with the least rainfall in Riobamba. Rain falls for 20.9 days and accumulates 46mm (1.81") of precipitation.

What is the least humid month in Riobamba?

September is the least humid month in Riobamba, Ecuador, with an average relative humidity of 81%.

When it does not snow in Riobamba?

The month with the least snowfall is September, when snow falls for 2.4 days and typically aggregates up to 18mm (0.71") of snow.

What time of the year is the hottest in Riobamba?

October and November are characterised by peak temperatures, with an average high of 13.6°C (56.5°F).

What month has the most sunshine in Riobamba?

With an average of 9.5h of sunshine, October has the most sunshine of the year in Riobamba, Ecuador.

When are the longest days in Riobamba?

The month with the longest days in Riobamba is December, with an average of 12h and 12min of daylight.

Is there Daylight Saving Time (DST) in Riobamba?

Riobamba, Ecuador, does not observe Daylight Saving Time (DST). -05 timezone is used over the entire year.

Average temperature
Riobamba, Ecuador

Average temperature - Riobamba, Ecuador

The warmest months (with the highest average high temperature) are October and November (13.6°C).
The month with the lowest average high temperature is July (11.8°C).

The months with the highest average low temperature are February and March (6.4°C).
The coldest month (with the lowest average low temperature) is August (3.8°C).

Average pressure
Riobamba, Ecuador

Average pressure - Riobamba, Ecuador

The month with the highest atmospheric pressure is July (1015.7mbar).
The month with the lowest atmospheric pressure is November (1012.8mbar).

Average wind speed
Riobamba, Ecuador

Average wind speed - Riobamba, Ecuador

The windiest months (with the highest average wind speed) are July and August (8.9km/h).
The calmest month (with the lowest average wind speed) is November (5.1km/h).

Average humidity
Riobamba, Ecuador

Average humidity - Riobamba, Ecuador

The month with the highest relative humidity is April (88%).
The month with the lowest relative humidity is September (81%).

Average rainfall
Riobamba, Ecuador

Average rainfall - Riobamba, Ecuador

The wettest month (with the highest rainfall) is March (223mm).
The driest month (with the least rainfall) is August (46mm).

Average rainfall days
Riobamba, Ecuador

Average rainfall days - Riobamba, Ecuador

The month with the highest number of rainy days is March (30.8 days).
The month with the least rainy days is August (20.9 days).

Average snowfall
Riobamba, Ecuador

Average snowfall - Riobamba, Ecuador

The month with the highest snowfall is January (106mm).
The month with the least snowfall is September (18mm).

Average snowfall days
Riobamba, Ecuador

Average snowfall days - Riobamba, Ecuador

The month with the highest number of snowfall days is December (4.5 days).
The months with the least snowfall days are February, March and August (2.3 days).

Average daylight / Average sunshine
Riobamba, Ecuador

Average daylight / Average sunshine - Riobamba, Ecuador

The month with the longest days is December (Average daylight: 12h and 12min).
The month with the shortest days is June (Average daylight: 12h and 0min).

The month with the most sunshine is October (Average sunshine: 9h and 30min).
The month with the least sunshine is April (Average sunshine: 6h and 36min).

Average sunshine days
Riobamba, Ecuador

Average sunshine days - Riobamba, Ecuador

The months with the most sunshine days are July and August (4.8 days).
The month with the least sunshine days is April (0 days).

Average UV index
Riobamba, Ecuador

Average UV index - Riobamba, Ecuador

The months with the highest UV index are January, March, May, June, August, September and October (UV index 3).
The months with the lowest UV index are February, April, July, November and December (UV index 2).

Average visibility
Riobamba, Ecuador

Average visibility - Riobamba, Ecuador

The months with the highest visibility are August and September (9km).
The months with the lowest visibility are April, May and December (7km).

Riobamba, Ecuador

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