Normal weather for Palo Alto in May

It's pleasantly warm in May in Palo Alto with an average temperature of 21°C. Temperatures this month range from a low of 19°C to a high of 23°C. At night, you can expect temperatures between 12°C and 14°C.

In May, there is an average of 26 mm of precipitation, spread over 4 days. The wind speed is around 4 Bft, mostly coming from the Northwest.

Palo Alto in May		New York
Average Temperature	21°C	22°C
High Temp	23°C	28°C
Low Temp	19°C	17°C
Total Precipitation	26 mm	105 mm
Rainy Days	4 days	14 days

Start of May

The month of May starts in Palo Alto with warm temps, averaging around 22°C during the day and nights around 13°C. There’s little chance of precipitation. The weather’s mostly sunny and dry.

With the temperature difference between day and night, it’s smart to wear layers. A T-shirt, light pants or skirt, and a light jacket are great for the day. In the evening and morning, choose a light jacket, sweater or hoodie, and long pants.

Mid May

By mid-May, daytime temps drop to around 21°C, with nights around 13°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.

Since it cools down at night, it’s a good idea to wear layers. During the day, a shirt, maybe a light sweater, and thin pants will do. In the evening and morning, choose a light jacket, sweater or hoodie, and long pants.

End of May

By the end of May, the average daytime temperature in Palo Alto is around 22°C, while nighttime temps are about 14°C. No precipitation expected at the end of the month; it’ll be mostly sunny.

Because temperatures drop in the evening, wearing layers is recommended. A T-shirt, light pants or skirt, and a light jacket are great for the day. In the evening and morning, choose a light jacket, sweater or hoodie, and long pants.

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Water temperature

The water temperature at Palo Alto is 20°C this month. Refreshing if you feel like a swim.

UV index

The UV index is a maximum of 7 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.

Is May a good time to visit Palo Alto?

Looking for great weather? May is a good time to be in Palo Alto. The temperatures are nice, and there’s not too much rain.

Temperature records for Palo Alto in May

Check out the climate of Palo Alto for all months and discover the best travel time

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Daily Temperature in May in Palo Alto

This chart shows the average daily high and low temperatures in May for Palo Alto, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.

Daily Precipitation in May in Palo Alto

The chart below shows the average daily precipitation in May for Palo Alto, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.

A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for May, you can expect about 4 days of precipitation in Palo Alto.

Daily UV Index in May in Palo Alto

This chart shows the average daily UV index in May in Palo Alto, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Temperature in May in Palo Alto Over the Years

This chart shows the average temperature in May in Palo Alto, measured in degrees Celsius, over the past few years.

Total Precipitation in May in Palo Alto Over the Years

This chart shows the average precipitation in May in Palo Alto, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.

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Daily Climate in May for Palo Alto

Click on any day in May to get detailed info about the usual weather on that day in Palo Alto. Check out the historical temperatures and precipitation over the past 10 years on this day.

Average Weather in Palo Alto by Month

Click on a month below to see detailed weather info for Palo Alto. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.