May weather forecast
Pasto, Colombia

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Weather in May

May in Pasto greets the residents with a significant drop in rainfall from 209mm (8.23") in April to 159mm (6.26"), signaling the end of the rainy season. This month is notably warmer leading to a reduction in relative humidity. The reduction in cloud cover allows for more sunlight reaching the ground. Encouraging outdoor activities, the atmosphere is lively and sun-lit, indicative of the nearing summer. With the decline in rainfall through May, a palpable shift in weather patterns is evident as the city transitions into June.

Temperature

May experiences an average high-temperature of a still pleasant 20.7°C (69.3°F), barely different from April's 20.3°C (68.5°F). In Pasto, May nights cool down to an average of 12.5°C (54.5°F).

Humidity

In May, the average relative humidity is 83%.

Rainfall

In May, in Pasto, the rain falls for 28.7 days. Throughout May, 159mm (6.26") of precipitation is accumulated. In Pasto, during the entire year, the rain falls for 317.6 days and collects up to 1710mm (67.32") of precipitation.

Daylight

In Pasto, the average length of the day in May is 12h and 11min.
On the first day of the month, sunrise is at 06:01 and sunset at 18:11. On the last day of May, in Pasto, sunrise is at 06:01 and sunset at 18:12 -05.

Sunshine

In May, the average sunshine is 7.1h.

UV index

February, April through September and December, with an average maximum UV index of 5, are months with the highest UV index. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index of 5 in May converts into the following recommendations:
Take necessary precautions - Suggestions to elude sunburn are provided. To protect against the Sun's most potent rays, avoid direct exposure around midday. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.

Frequently asked questions

What are May temperatures in Pasto?

The high-temperature, in May, in Pasto, is 20.7°C (69.3°F), while the low-temperature averages to 12.5°C (54.5°F).

What is the average humidity in May in Pasto?

The average relative humidity in May is 83%.

How many days does it rain in May in Pasto?

In Pasto, Colombia, during May, the rain falls for 28.7 days and regularly aggregates up to 159mm (6.26") of precipitation.

What is the average length of the day in May in Pasto?

The average day length in May in Pasto, Colombia, is 12h and 11min.

When is the sunrise / sunset in May in Pasto?

On the first day of May in Pasto, Colombia, sunrise is at 06:01 and sunset at 18:11. On the last day of the month, sunrise is at 06:01 and sunset at 18:12 -05.

How long on average sun shines in May in Pasto?

In Pasto, Colombia, the average sunshine duration in May is 7.1h.

When is the highest UV index in Pasto?

The months with the highest UV index are February, April through September and December, with an average maximum UV index of 5.

What is the UV index intensity in May in Pasto?

In May, the average daily maximum UV index in Pasto, Colombia, is 5. A UV Index reading of 3 to 5 represents a medium health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Pasto, Colombia

Average temperature in May - Pasto, Colombia
  • Average high temperature in May: 20.7°C

The warmest month (with the highest average high temperature) is August (22.4°C).
The months with the lowest average high temperature are November and December (20.2°C).

  • Average low temperature in May: 12.5°C

The month with the highest average low temperature is February (12.9°C).
The coldest month (with the lowest average low temperature) is July (12°C).

Average pressure in May
Pasto, Colombia

Average pressure in May - Pasto, Colombia
  • Average pressure in May: 1014mbar

The month with the highest atmospheric pressure is July (1014.7mbar).
The month with the lowest atmospheric pressure is November (1012.2mbar).

Average wind speed in May
Pasto, Colombia

Average wind speed in May - Pasto, Colombia
  • Average wind speed in May: 4.5km/h

The windiest month (with the highest average wind speed) is July (7.1km/h).
The calmest month (with the lowest average wind speed) is February (3.5km/h).

Average humidity in May
Pasto, Colombia

Average humidity in May - Pasto, Colombia
  • Average humidity in May: 83%

The month with the highest relative humidity is November (87%).
The month with the lowest relative humidity is August (71%).

Average rainfall in May
Pasto, Colombia

Average rainfall in May - Pasto, Colombia
  • Average rainfall in May: 159mm

The wettest month (with the highest rainfall) is April (209mm).
The driest month (with the least rainfall) is August (72mm).

Average rainfall days in May
Pasto, Colombia

Average rainfall days in May - Pasto, Colombia
  • Average rainfall days in May: 28.7 days

The month with the highest number of rainy days is October (29.1 days).
The month with the least rainy days is July (22.4 days).

Average daylight in May /
Average sunshine in May
Pasto, Colombia

Average daylight in May / Average sunshine in May - Pasto, Colombia
  • Average daylight in May: 12h and 1min

The month with the longest days is June (Average daylight: 12h and 12min).
The month with the shortest days is December (Average daylight: 12h and 6min).

  • Average sunshine in May: 7h and 1min

The month with the most sunshine is September (Average sunshine: 9h and 54min).
The months with the least sunshine are March and April (Average sunshine: 6h and 30min).

Average sunshine days in May
Pasto, Colombia

Average sunshine days in May - Pasto, Colombia
  • Average sunshine days in May: 1.8 days

The month with the most sunshine days is August (3.3 days).
The months with the least sunshine days are April and November (1.4 days).

Average UV index in May
Pasto, Colombia

Average UV index in May - Pasto, Colombia
  • Average UV index in May: 5

The months with the highest UV index are February, April, May, June, July, August, September and December (UV index 5).
The months with the lowest UV index are January, March, October and November (UV index 4).

Average cloud cover in May
Pasto, Colombia

Average cloud cover in May - Pasto, Colombia
  • Average cloud cover in May: 49

The month with the most cloud cover is November (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in May
Pasto, Colombia

Average visibility in May - Pasto, Colombia
  • Average visibility in May: 8km

The months with the highest visibility are June, July, August and September (9km).
The months with the lowest visibility are March and November (7km).

Pasto, Colombia

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