Contents
- Weather in July
- Frequently asked questions
- Average temperature in July
- Average pressure in July
- Average wind speed in July
- Average humidity in July
- Average rainfall in July
- Average rainfall days in July
- Average daylight in July
- Average sunshine in July
- Average sunshine days in July
- Average UV index in July
- Average cloud cover in July
- Average visibility in July
Weather in July
Temperature
San Marcos measures an average high-temperature of a still warm 80.2°F (26.8°C) in July, nearly consistent with the preceding month. An average low-temperature of 62.6°F (17°C) marks the month of July in San Marcos.Humidity
In San Marcos, the average relative humidity in July is 66%.Rainfall
In San Marcos, in July, during 2.5 rainfall days, 0.12" (3mm) of precipitation is typically accumulated. In San Marcos, during the entire year, the rain falls for 52.1 days and collects up to 6.1" (155mm) of precipitation.Daylight
The average length of the day in July is 14h and 5min.On the first day of the month, sunrise is at 5:43 am and sunset at 8:01 pm. On the last day of July, sunrise is at 6:01 am and sunset at 7:48 pm PDT.
Sunshine
The month with the most sunshine is July, with an average of 12.1h of sunshine.UV index
June through September, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for average individuals.Note: In July, a daily maximum UV index of 6 leads to the following instructions:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in San Marcos in July?
What is the average humidity in July in San Marcos?
How many days does it rain in July in San Marcos?
What is the average length of the day in July in San Marcos?
When are sunrise and sunset in July in San Marcos?
What month has the most sunshine in San Marcos?
How many hours of sunshine does San Marcos have in July?
When is the highest UV index in San Marcos?
What is the UV index reading in July in San Marcos?
Average temperature in July
San Marcos, CA
- Average high temperature in July: 80.2°F
The warmest month (with the highest average high temperature) is August (81.9°F).
The months with the lowest average high temperature are February and December (63.3°F).
- Average low temperature in July: 62.6°F
The month with the highest average low temperature is August (64.2°F).
The coldest month (with the lowest average low temperature) is February (48°F).
Average pressure in July
San Marcos, CA
- Average pressure in July: 29.9"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in July
San Marcos, CA
- Average wind speed in July: 4.8mph
The windiest month (with the highest average wind speed) is April (5.7mph).
The calmest month (with the lowest average wind speed) is October (4.4mph).
Average humidity in July
San Marcos, CA
- Average humidity in July: 66%
The month with the highest relative humidity is May (70%).
The month with the lowest relative humidity is November (56%).
Average rainfall in July
San Marcos, CA
- Average rainfall in July: 0.12"
The wettest month (with the highest rainfall) is December (1.22").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in July
San Marcos, CA
- Average rainfall days in July: 2.5 days
The month with the highest number of rainy days is March (7.8 days).
The month with the least rainy days is June (1.2 days).
Average daylight in July /
Average sunshine in July
San Marcos, CA
- Average daylight in July: 14h and 1min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in July: 12h and 1min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in July
San Marcos, CA
- Average sunshine days in July: 24.5 days
The month with the most sunshine days is August (25.8 days).
The month with the least sunshine days is February (20 days).
Average UV index in July
San Marcos, CA
- Average UV index in July: 6
The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).
Average cloud cover in July
San Marcos, CA
- Average cloud cover in July: 9
The 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).
Average visibility in July
San Marcos, CA
- Average visibility in July: 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 Marcos, California, USA
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