2024 Compare Climate & Weather:
Palo Alto, CA vs San Diego, CA
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Highlights
On average, there are 266 sunny days per year in San Diego. Palo Alto averages 261 sunny days per year. The US average is 205 sunny days.
San Diego, California gets 11.7 inches of rain, on average, per year. Palo Alto, California gets 17.3 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.
San Diego averages 0 inches of snow per year. Palo Alto averages 0 inches of snow per year. The US average is 27.8 inches of snow per year.
Weather Highlights
San Diego, California
Summer High: the July high is around 78.5 degrees
Winter Low: the January low is 45.6
Rain: averages 11.7 inches of rain a year
Snow: averages 0 inches of snow a year
Palo Alto, California
Summer High: the July high is around 79.8 degrees
Winter Low: the January low is 40.5
Rain: averages 17.3 inches of rain a year
Snow: averages 0 inches of snow a year
BESTPLACES COMFORT INDEX
San DiegoThe annual BestPlaces Comfort Index for San Diego is 9.2 (10=best), which means it is one of the most pleasant places in California.
9.2 / 10
June, October and September are the most pleasant months in San Diego, while December and January are the least comfortable months.
Palo AltoThe annual BestPlaces Comfort Index for Palo Alto is 8.8 (10=best), which means it is more comfortable than most places in California.
8.8 / 10
August, July and September are the most pleasant months in Palo Alto, while January and December are the least comfortable months.
Today's Weather - Palo Alto, CA
1 PM PST
Sunny
74°F
| DAY | DESCRIPTION | HIGH / LOW | WIND |
|---|
| This Afternoon | Sunny | 79° / 52° | NNW 8 mph |
| Thursday | Sunny | 79° / 52° | NW 2 to 9 mph |
| Friday | Sunny | 77° / 52° | SW 3 to 8 mph |
| Saturday | Sunny | 75° / 51° | SW 3 to 9 mph |
| Sunday | Mostly Sunny | 74° / 50° | WSW 2 to 10 mph |
| Monday | Sunny | 71° / 50° | W 5 to 12 mph |
| Tuesday | Sunny | 74° / 50° | W 3 to 12 mph |
Today's Weather - San Diego, CA
1 PM PST
Mostly Cloudy
66°F
| DAY | DESCRIPTION | HIGH / LOW | WIND |
|---|
| This Afternoon | Mostly Cloudy | 69° / 58° | W 10 mph |
| Thursday | Mostly Cloudy | 69° / 58° | W 0 to 10 mph |
| Friday | Partly Sunny | 70° / 57° | W 0 to 10 mph |
| Saturday | Partly Sunny | 71° / 56° | NW 5 to 10 mph |
| Sunday | Patchy Fog then Partly Sunny | 71° / 56° | NW 5 to 15 mph |
| Monday | Mostly Cloudy | 68° / 55° | W 5 to 15 mph |
| Tuesday | Mostly Cloudy | 68° / 55° | SW 5 to 10 mph |
Average Monthly High / Low (°F)
| Month | Palo Alto, CA | San Diego, CA |
|---|
| January | 58° / 41° | 67° / 46° |
| February | 62° / 43° | 66° / 48° |
| March | 65° / 45° | 67° / 50° |
| April | 69° / 47° | 70° / 53° |
| May | 74° / 51° | 71° / 57° |
| June | 78° / 54° | 74° / 60° |
| July | 80° / 57° | 79° / 64° |
| August | 80° / 56° | 80° / 65° |
| September | 79° / 55° | 79° / 63° |
| October | 74° / 50° | 75° / 57° |
| November | 65° / 45° | 71° / 50° |
| December | 58° / 40° | 66° / 45° |
Hot, Freezing, Rainy, Snowy Days: Palo Alto / San Diego
| Month | Hot Days | Freezing Days | Rainy Days | Snowy Days |
|---|
| January | 0 / 0 | 3 / 0 | 10 / 6 | 0 / 0 |
| February | 0 / 0 | 1 / 0 | 10 / 7 | 0 / 0 |
| March | 0 / 0 | 0 / 0 | 10 / 6 | 0 / 0 |
| April | 0 / 0 | 0 / 0 | 5 / 4 | 0 / 0 |
| May | 1 / 1 | 0 / 0 | 3 / 1 | 0 / 0 |
| June | 3 / 1 | 0 / 0 | 1 / 1 | 0 / 0 |
| July | 2 / 2 | 0 / 0 | 0 / 1 | 0 / 0 |
| August | 3 / 3 | 0 / 0 | 0 / 0 | 0 / 0 |
| September | 3 / 3 | 0 / 0 | 1 / 1 | 0 / 0 |
| October | 1 / 2 | 0 / 0 | 3 / 2 | 0 / 0 |
| November | 0 / 0 | 0 / 0 | 8 / 4 | 0 / 0 |
| December | 0 / 0 | 3 / 0 | 10 / 6 | 0 / 0 |
July is the hottest month for Palo Alto with an average high temperature of 79.8°, which ranks it as cooler than most places in California. In Palo Alto, there are 6 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Palo Alto are June, September and August.
August is the hottest month for San Diego with an average high temperature of 80.2°, which ranks it as cooler than most places in California. In San Diego, there are 7 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for San Diego are July, September and August.
December has the coldest nighttime temperatures for Palo Alto with an average of 40.2°. This is warmer than most places in California.
December has the coldest nighttime temperatures for San Diego with an average of 45.3°. This is one of the warmest places in California.
In Palo Alto, there are 13.0 days annually when the high temperature is over 90°, which is cooler than most places in California.
In San Diego, there are 13.4 days annually when the high temperature is over 90°, which is cooler than most places in California.
In Palo Alto, there are 7.1 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.
In San Diego, there are 0.7 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in California.
In Palo Alto, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in California.
In San Diego, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in California.
February is the wettest month in Palo Alto with 3.5 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 58% of yearly precipitation and 1% occurs in Autumn, which is the driest season. The annual rainfall of 17.3 inches in Palo Alto means that it is about average compared to other places in California.
February is the wettest month in San Diego with 2.5 inches of rain, and the driest month is August with 0.0 inches. The wettest season is Spring with 55% of yearly precipitation and 2% occurs in Autumn, which is the driest season. The annual rainfall of 11.7 inches in San Diego means that it is drier than most places in California.
January is the rainiest month in Palo Alto with 10.2 days of rain, and July is the driest month with only 0.1 rainy days. There are 60.6 rainy days annually in Palo Alto, which is about average compared to other places in California. The rainiest season is Spring when it rains 50% of the time and the driest is Autumn with only a 2% chance of a rainy day.
February is the rainiest month in San Diego with 6.8 days of rain, and August is the driest month with only 0.4 rainy days. There are 38.4 rainy days annually in San Diego, which is less rainy than most places in California. The rainiest season is Spring when it rains 48% of the time and the driest is Autumn with only a 4% chance of a rainy day.
There is rarely any recorded snowfall in Palo Alto, ranking it as one of the least snowy places in California.
There is rarely any recorded snowfall in San Diego, ranking it as one of the least snowy places in California.
Any measurable snowfall is a rare occurance in Palo Alto.
Any measurable snowfall is a rare occurance in San Diego.
DID YOU KNOW?
Many people confuse Weather and Climate, but they are different. Weather refers to the conditions of the atmosphere over a short period of time, while Climate refers to the conditions of the atmosphere over a long period of time.
Weather, more specifically, refers to how the atmosphere behaves and its effects on life and human activities. Most people think of Weather in terms of what can be observed: temperature, humidity, precipitation, and cloudy/sunny conditions. Weather conditions constantly change on a minute-to-minute basis.
Climate is a record of the average weather conditions for a given place over a long period of time, often referred to as Climate Normals. A 30-year period of record is a common requirement to be considered a Climate Normal.
Reviews for Palo Alto 
2 Reviews
Hi. I'd like to know if you still feel the same way about living in Broomfield. I went there this past July to check it out (along with Lafayette, Boulder (can't More
Apex is perfect for what you are looking for. It's close enough to Raleigh, Durham, Chapel Hill to find a job and Cary the next town over, is a little more expensive but More
Start Your Review of Palo Alto
Reviews for San Diego 2 Reviews
Hi. I'd like to know if you still feel the same way about living in Broomfield. I went there this past July to check it out (along with Lafayette, Boulder (can't More
Apex is perfect for what you are looking for. It's close enough to Raleigh, Durham, Chapel Hill to find a job and Cary the next town over, is a little more expensive but More
Start Your Review of San Diego
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