May weather forecast
San Jacinto, CA

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Weather in May

The last month of the spring, May, is a warm month in San Jacinto, California, with an average temperature fluctuating between 49.5°F (9.7°C) and 74.8°F (23.8°C).

Temperature

The average high-temperature during May registers at a moderately hot 74.8°F (23.8°C), maintaining a close resemblance to the previous month. The nighttime temperature during May displays a significant divergence from daily peaks, averaging at a chilly 49.5°F (9.7°C).

Humidity

February, March and May, with an average relative humidity of 56%, are the most humid months.

Rainfall

In San Jacinto, during May, the rain falls for 4.8 days and regularly aggregates up to 0.24" (6mm) of precipitation. Throughout the year, there are 54 rainfall days, and 6.61" (168mm) of precipitation is accumulated.

Snowfall

January through November are months without snowfall.

Daylight

The average length of the day in May is 13h and 56min.
On the first day of May, sunrise is at 5:58 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 5:38 am and sunset at 7:53 pm PDT.

Sunshine

The average sunshine in May is 11.5h.

UV index

In San Jacinto, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for average individuals.
Note: A typical high UV index of 5 in May suggests the following recommendations:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.

Frequently asked questions

What is the temperature in May?

San Jacinto in May has an average high-temperature of 74.8°F (23.8°C) and an average low-temperature of 49.5°F (9.7°C).

What is the most humid month?

The months with the highest humidity are February, March and May, with an average relative humidity of 56%.

What is the average humidity in May?

The average relative humidity in May is 56%.

How much does it rain in May?

In San Jacinto, in May, during 4.8 rainfall days, 0.24" (6mm) of precipitation is typically accumulated.

When it does not snow?

In San Jacinto, snow does not fall in January through November.

How many hours of daylight does San Jacinto have in May?

In May, the average day length is 13h and 56min.

When is the sunrise / sunset in May?

In May, on the first day of the month, sunrise is at 5:58 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 5:38 am and sunset at 7:53 pm PDT.

How long on average sun shines in May?

In May, the average sunshine duration is 11.5h.

How high is the UV index in May?

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

Average temperature in May
San Jacinto, CA

Average temperature in May - San Jacinto, CA
  • Average high temperature in May: 74.8°F

The warmest month (with the highest average high temperature) is August (90.5°F).
The month with the lowest average high temperature is December (58.6°F).

  • Average low temperature in May: 49.5°F

The month with the highest average low temperature is August (63.1°F).
The coldest month (with the lowest average low temperature) is December (41°F).

Average pressure in May
San Jacinto, CA

Average pressure in May - San Jacinto, CA
  • Average pressure in May: 29.88"Hg

The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

Average wind speed in May
San Jacinto, CA

Average wind speed in May - San Jacinto, CA
  • Average wind speed in May: 6mph

The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest month (with the lowest average wind speed) is September (4.7mph).

Average humidity in May
San Jacinto, CA

Average humidity in May - San Jacinto, CA
  • Average humidity in May: 56%

The months with the highest relative humidity are February, March and May (56%).
The month with the lowest relative humidity is August (41%).

Average rainfall in May
San Jacinto, CA

Average rainfall in May - San Jacinto, CA
  • Average rainfall in May: 0.24"

The wettest month (with the highest rainfall) is February (1.38").
The driest month (with the least rainfall) is June (0.04").

Average rainfall days in May
San Jacinto, CA

Average rainfall days in May - San Jacinto, CA
  • Average rainfall days in May: 4.8 days

The month with the highest number of rainy days is March (7.4 days).
The month with the least rainy days is June (1.6 days).

Average snowfall in May
San Jacinto, CA

Average snowfall in May - San Jacinto, CA
  • Average snowfall in May: 0"

The month with the highest snowfall is December (0.04").
The months with the least snowfall are January, February, March, April, May, June, July, August, September, October and November (0").

Average snowfall days in May
San Jacinto, CA

Average snowfall days in May - San Jacinto, CA
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).

Average daylight in May /
Average sunshine in May
San Jacinto, CA

Average daylight in May / Average sunshine in May - San Jacinto, CA
  • Average daylight in May: 13h and 5min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in May: 11h and 3min

The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The months with the least sunshine are February and December (Average sunshine: 6h and 42min).

Average sunshine days in May
San Jacinto, CA

Average sunshine days in May - San Jacinto, CA
  • Average sunshine days in May: 25 days

The month with the most sunshine days is October (27.4 days).
The month with the least sunshine days is February (20.9 days).

Average UV index in May
San Jacinto, CA

Average UV index in May - San Jacinto, CA
  • Average UV index in May: 5

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are November and December (UV index 3).

Average cloud cover in May
San Jacinto, CA

Average cloud cover in May - San Jacinto, CA
  • Average cloud cover in May: 15

The months with the most cloud cover are March and December (Cloud cover 25).
The month with the least cloud cover is August (Cloud cover 6).

Average visibility in May
San Jacinto, CA

Average visibility in May - San Jacinto, CA
  • Average visibility in May: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

San Jacinto, California, USA

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