Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
The commencement of May brings an average high-temperature of a comfortable 61°F (16.1°C), marking an inconsequential divergence from April. Throughout the month of May, the nighttime temperature dips to an average of 51.4°F (10.8°C).Humidity
In May, the average relative humidity is 79%.Rainfall
In Pacifica, in May, during 7 rainfall days, 0.39" (10mm) of precipitation is typically accumulated. Throughout the year, there are 77.3 rainfall days, and 6.81" (173mm) of precipitation is accumulated.Daylight
In Pacifica, the average length of the day in May is 14h and 13min.On the first day of May, sunrise is at 6:13 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 5:50 am and sunset at 8:25 pm PDT.
Sunshine
In Pacifica, the average sunshine in May is 9.7h.UV index
In May, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The daily maximum UV index of 4 in May interprets into the following advice:
Take precautions - Protection against sunburn is recommended. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Pacifica in May?
What is the average humidity in May?
How much does it rain in May?
How many hours of daylight does Pacifica have in May?
When are sunrise and sunset in May in Pacifica?
How many hours of sunshine does Pacifica have in May?
How high is the UV index in May?
Average temperature in May
Pacifica, CA
- Average high temperature in May: 61°F
The warmest month (with the highest average high temperature) is September (67.5°F).
The month with the lowest average high temperature is December (55.6°F).
- Average low temperature in May: 51.4°F
The month with the highest average low temperature is September (56.8°F).
The coldest months (with the lowest average low temperature) are January and February (48.7°F).
Average pressure in May
Pacifica, CA
- Average pressure in May: 29.98"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.92"Hg).
Average wind speed in May
Pacifica, CA
- Average wind speed in May: 9.1mph
The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest months (with the lowest average wind speed) are August and September (6.8mph).
Average humidity in May
Pacifica, CA
- Average humidity in May: 79%
The month with the highest relative humidity is August (82%).
The months with the lowest relative humidity are November and December (72%).
Average rainfall in May
Pacifica, CA
- Average rainfall in May: 0.39"
The wettest month (with the highest rainfall) is February (1.34").
The driest months (with the least rainfall) are June, July and September (0.12").
Average rainfall days in May
Pacifica, CA
- Average rainfall days in May: 7 days
The month with the highest number of rainy days is March (10.5 days).
The month with the least rainy days is September (3.6 days).
Average daylight in May /
Average sunshine in May
Pacifica, CA
- Average daylight in May: 14h and 1min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in May: 9h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in May
Pacifica, CA
- Average sunshine days in May: 20.3 days
The month with the most sunshine days is October (24.5 days).
The month with the least sunshine days is August (18.7 days).
Average UV index in May
Pacifica, CA
- Average UV index in May: 4
The months with the highest UV index are June, August and September (UV index 5).
The months with the lowest UV index are February and December (UV index 3).
Average cloud cover in May
Pacifica, CA
- Average cloud cover in May: 33
The month with the most cloud cover is March (Cloud cover 39).
The months with the least cloud cover are September and October (Cloud cover 21).
Average visibility in May
Pacifica, 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).
Pacifica, California, USA
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