May weather forecast
Hermosillo, Mexico

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The intricate design of the mighty Assumption Cathedral Church building located in Hermosillo, Mexico
The intricate design of the mighty Assumption Cathedral Church building located in Hermosillo, Mexico

Weather in May

May heralds the onset of summer in Hermosillo with daytime temperatures soaring to a searing 34.4°C (93.9°F). Compared to April's warmth, May's heat can be quite imposing. However, the prolonged daylight hours provide ample opportunities for sightseeing and exploring the local landscape. Despite the temperature hike, May remains virtually rain-free, ensuring unobscured scenic views. The hot weather combined with the relatively high wind speeds makes this month a unique mix of elements.

Temperature

Hermosillo's May weather indicates a minor increase in high-temperatures, edging from April's 31.4°C (88.5°F) to a still hot 34.4°C (93.9°F). Hermosillo, in the heat of May, registers a significant plunge to a mean of 20.3°C (68.5°F) during the nights.

Humidity

May is the least humid month in Hermosillo, Mexico, with an average relative humidity of 22%.

Rainfall

The only month without rainfall is May.

Daylight

The average length of the day in May in Hermosillo is 13h and 37min.
On the first day of May in Hermosillo, Mexico, sunrise is at 5:41 am and sunset at 7:00 pm. On the last day of the month, sunrise is at 5:25 am and sunset at 7:18 pm MST.

Sunshine

The average sunshine in May is 12.1h.

UV index

May through September, with an average maximum UV index of 8, are months with the highest UV index in Hermosillo. A UV Index estimate of 8 to 10 represents a very high threat to health from exposure to the Sun's UV rays for average individuals.
Note: A daily high UV index of 8 in May leads to these guidelines:
Always take precautions; unprotected eyes and skin can be damaged rapidly. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.

Frequently asked questions

How hot does it get in Hermosillo in May?

The average high-temperature, in May, in Hermosillo, is 34.4°C (93.9°F), while the average low-temperature is 20.3°C (68.5°F).

What is the least humid month in Hermosillo?

With an average relative humidity of 22%, May is the least humid month in Hermosillo, Mexico.

What is the average humidity in May in Hermosillo?

In May, the average relative humidity in Hermosillo, Mexico, is 22%.

What is the driest month in Hermosillo?

May is the only month when rain does not fall in Hermosillo, Mexico.

Does it rain in Hermosillo in May?

In May, it doesn't rain. April is the latest month when it rains.

How many hours of daylight does Hermosillo have in May?

In May, the average day length in Hermosillo is 13h and 37min.

When are sunrise and sunset in May in Hermosillo?

On the first day of May in Hermosillo, sunrise is at 5:41 am and sunset at 7:00 pm. On the last day of the month, sunrise is at 5:25 am and sunset at 7:18 pm MST.

How many hours of sunshine does Hermosillo have in May?

In May, the average sunshine duration in Hermosillo, Mexico, is 12.1h.

When is the highest UV index in Hermosillo?

The months with the highest UV index are May through September, with an average maximum UV index of 8.

What is the UV index reading in May in Hermosillo?

In Hermosillo, the average daily maximum UV index in May is 8. A UV Index of 8 to 10 symbolizes a very high health vulnerability from exposure to Sun's UV rays.

Average temperature in May
Hermosillo, Mexico

Average temperature in May - Hermosillo, Mexico
  • Average high temperature in May: 34.4°C

The warmest month (with the highest average high temperature) is June (38.8°C).
The month with the lowest average high temperature is December (22.7°C).

  • Average low temperature in May: 20.3°C

The month with the highest average low temperature is July (28.7°C).
The coldest month (with the lowest average low temperature) is January (11.8°C).

Average pressure in May
Hermosillo, Mexico

Average pressure in May - Hermosillo, Mexico
  • Average pressure in May: 1010.7mbar

The month with the highest atmospheric pressure is January (1016.6mbar).
The month with the lowest atmospheric pressure is June (1009.3mbar).

Average wind speed in May
Hermosillo, Mexico

Average wind speed in May - Hermosillo, Mexico
  • Average wind speed in May: 13.6km/h

The windiest month (with the highest average wind speed) is June (13.8km/h).
The calmest month (with the lowest average wind speed) is January (8.8km/h).

Average humidity in May
Hermosillo, Mexico

Average humidity in May - Hermosillo, Mexico
  • Average humidity in May: 22%

The month with the highest relative humidity is August (50%).
The month with the lowest relative humidity is May (22%).

Average rainfall in May
Hermosillo, Mexico

Average rainfall in May - Hermosillo, Mexico
  • Average rainfall in May: 0mm

The wettest month (with the highest rainfall) is August (67mm).
The driest month (with the least rainfall) is May (0mm).

Average rainfall days in May
Hermosillo, Mexico

Average rainfall days in May - Hermosillo, Mexico
  • Average rainfall days in May: 0.7 days

The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is May (0.7 days).

Average daylight in May /
Average sunshine in May
Hermosillo, Mexico

Average daylight in May / Average sunshine in May - Hermosillo, Mexico
  • Average daylight in May: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).

  • Average sunshine in May: 12h and 1min

The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).

Average sunshine days in May
Hermosillo, Mexico

Average sunshine days in May - Hermosillo, Mexico
  • Average sunshine days in May: 30.2 days

The month with the most sunshine days is May (30.2 days).
The month with the least sunshine days is July (9 days).

Average UV index in May
Hermosillo, Mexico

Average UV index in May - Hermosillo, Mexico
  • Average UV index in May: 8

The months with the highest UV index are May, June, July, August and September (UV index 8).
The months with the lowest UV index are January, February, November and December (UV index 5).

Average cloud cover in May
Hermosillo, Mexico

Average cloud cover in May - Hermosillo, Mexico
  • Average cloud cover in May: 5

The month with the most cloud cover is July (Cloud cover 24).
The month with the least cloud cover is May (Cloud cover 5).

Average visibility in May
Hermosillo, Mexico

Average visibility in May - Hermosillo, Mexico
  • Average visibility in May: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

Hermosillo, Mexico

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