May weather forecast and climate
Santee, CA

Weather in May

May, the last month of the spring, in Santee, is another pleasant month, with average temperature fluctuating between 53.8°F (12.1°C) and 71.8°F (22.1°C).

Temperature

In May, the average high-temperature is practically the same as in April - a still pleasant 71.8°F (22.1°C). In Santee, in May, the average low-temperature is 53.8°F (12.1°C).

Humidity

With an average relative humidity of 66%, May is the most humid month in Santee.

Rainfall

In Santee, it is raining for 3.3 days, with typically 0.24" (6mm) of accumulated precipitation. Throughout the year, there are 47.9 rainfall days, and 5.31" (135mm) of precipitation is accumulated.

Daylight

In Santee, California, the average length of the day is 13.9h.

Sunshine

In May, the average sunshine is 11.1h.

UV index

The average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to the Sun's UV rays for average individuals.
Note: In May, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in May in Santee?

The average high-temperature, in May, in Santee, is 71.8°F (22.1°C), while the average low-temperature is 53.8°F (12.1°C).

What is the most humid month in Santee?

May is the most humid month, with an average relative humidity of 66%.

What is the average humidity in May in Santee?

In May, the average relative humidity is 66%.

How much does it rain in Santee in May?

In Santee, during May, the rain falls for 3.3 days and regularly aggregates up to 0.24" (6mm) of precipitation.

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

The average length of the day in May in Santee, California, is 13.9h.

How long on average sun shines in May in Santee?

In Santee, the average sunshine in May is 11.1h.

How high is the UV index in May in Santee?

In Santee, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unsafe exposure to the Sun's UV rays.

Average temperature in May
Santee, CA

Average temperature in May - Santee, CA
  • Average high temperature in May: 71.8°F

The warmest month (with the highest average high temperature) is August (84.7°F).
The month with the lowest average high temperature is December (64°F).

  • Average low temperature in May: 53.8°F

The month with the highest average low temperature is August (65.3°F).
The coldest month (with the lowest average low temperature) is February (46.9°F).

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Average pressure in May
Santee, CA

Average pressure in May - Santee, CA
  • Average pressure in May: 29.91"

The month with the highest atmospheric pressure is January (30.09").
Months with the lowest atmospheric pressure are June and September (29.87").

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Average wind speed in May
Santee, CA

Average wind speed in May - Santee, CA
  • Average wind speed in May: 5.3mph

The windiest month (with the highest average wind speed) is April (5.4mph).
The calmest month (with the lowest average wind speed) is October (4.2mph).

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Average humidity in May
Santee, CA

Average humidity in May - Santee, CA
  • Average humidity in May: 66%

The month with the highest relative humidity is May (66%).
The month with the lowest relative humidity is November (54%).

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Average rainfall in May
Santee, CA

Average rainfall in May - Santee, CA
  • Average rainfall in May: 0.24"

The wettest month (with the highest rainfall) is February (1.14").
The driest month (with the least rainfall) is June (0.04").

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Average rainfall days in May
Santee, CA

Average rainfall days in May - Santee, CA
  • Average rainfall days in May: 3.3 days

The month with the highest number of rainy days is March (6.8 days).
The month with the least rainy days is June (1.4 days).

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Average daylight in May /
Average sunshine in May
Santee, CA

Average daylight in May / Average sunshine in May - Santee, CA
  • Average daylight in May: 13.9h

The month with the longest days is June (Average daylight: 14.3h).
The month with the shortest days is December (Average daylight: 10h).

  • Average sunshine in May: 11.1h

The month with the most sunshine is July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 6.7h).

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Average sunshine days in May
Santee, CA

Average sunshine days in May - Santee, CA
  • Average sunshine days in May: 26.7 days

The month with the most sunshine days is June (28 days).
The month with the least sunshine days is February (22.3 days).

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Average UV index in May
Santee, CA

Average UV index in May - Santee, CA
  • Average UV index in May: 5

Months with the highest UV index are June, July, August and September (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 4).

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Average cloud cover in May
Santee, CA

Average cloud cover in May - Santee, CA
  • Average cloud cover in May: 19

Months with the most cloud cover are March and December (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 7).

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Average visibility in May
Santee, CA

Average visibility in May - Santee, CA
  • Average visibility in May: 6mi

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

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