Contents
- Weather in February
- Frequently asked questions
- Average temperature in February
- Average pressure in February
- Average wind speed in February
- Average humidity in February
- Average rainfall in February
- Average rainfall days in February
- Average daylight in February
- Average sunshine in February
- Average sunshine days in February
- Average UV index in February
- Average cloud cover in February
- Average visibility in February
Weather in February
Temperature
With the advent of February, San Francisco's high-temperatures adjust to a still moderately hot 28.3°C (82.9°F), closely aligning with the preceding month. In the month of February, San Francisco witnesses a consistent average low-temperature of 17.2°C (63°F).Heat index
February's average heat index is estimated at a tropical 31°C (87.8°F). Prolonged activity during exposure might result in a state of fatigue and cause heat cramps.When assessing, remember that heat index measurements are for light winds and shaded spots. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', reflects the feeling of heat when considering both air temperature and humidity. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
Humidity
In San Francisco, the average relative humidity in February is 71%.Rainfall
The month with the least rainfall in San Francisco is February, when the rain falls for 10.3 days and typically collects 17mm (0.67") of precipitation.Daylight
The average length of the day in February is 11h and 49min.On the first day of February in San Francisco, sunrise is at 05:58 and sunset at 17:41. On the last day of the month, sunrise is at 05:50 and sunset at 17:46 CST.
Sunshine
The average sunshine in February is 9.1h.UV index
January through April, June, July, September, October and December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index, 6 in February, converts into the following recommendations:
Shun overexposure. Protection from sun ravages is indispensable. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is February in San Francisco?
What is the average humidity in February in San Francisco?
What is the driest month in San Francisco?
How much does it rain in San Francisco in February?
What is the average length of the day in February in San Francisco?
When are sunrise and sunset in February in San Francisco?
How many hours of sunshine does San Francisco have in February?
When is the highest UV index in San Francisco?
How high is the UV index in February in San Francisco?
Average temperature in February
San Francisco, Costa Rica
- Average high temperature in February: 28.3°C
The warmest months (with the highest average high temperature) are March and April (29.7°C).
The month with the lowest average high temperature is October (25.4°C).
- Average low temperature in February: 17.2°C
The month with the highest average low temperature is May (19.8°C).
The coldest month (with the lowest average low temperature) is January (16.8°C).
Average pressure in February
San Francisco, Costa Rica
- Average pressure in February: 1011.8mbar
The month with the highest atmospheric pressure is January (1012.1mbar).
The month with the lowest atmospheric pressure is October (1010.7mbar).
Average wind speed in February
San Francisco, Costa Rica
- Average wind speed in February: 10.6km/h
The windiest month (with the highest average wind speed) is February (10.6km/h).
The calmest month (with the lowest average wind speed) is September (3.8km/h).
Average humidity in February
San Francisco, Costa Rica
- Average humidity in February: 71%
The month with the highest relative humidity is October (89%).
The month with the lowest relative humidity is March (70%).
Average rainfall in February
San Francisco, Costa Rica
- Average rainfall in February: 17mm
The wettest month (with the highest rainfall) is October (396mm).
The driest month (with the least rainfall) is February (17mm).
Average rainfall days in February
San Francisco, Costa Rica
- Average rainfall days in February: 10.3 days
The month with the highest number of rainy days is October (30.2 days).
The month with the least rainy days is February (10.3 days).
Average daylight in February /
Average sunshine in February
San Francisco, Costa Rica
- Average daylight in February: 11h and 5min
The month with the longest days is June (Average daylight: 12h and 42min).
The month with the shortest days is December (Average daylight: 11h and 36min).
- Average sunshine in February: 9h and 1min
The month with the most sunshine is March (Average sunshine: 9h and 24min).
The month with the least sunshine is October (Average sunshine: 7h and 0min).
Average sunshine days in February
San Francisco, Costa Rica
- Average sunshine days in February: 15 days
The month with the most sunshine days is January (16.7 days).
The month with the least sunshine days is September (0.5 days).
Average UV index in February
San Francisco, Costa Rica
- Average UV index in February: 6
The months with the highest UV index are January, February, March, April, June, July, September, October and December (UV index 6).
The months with the lowest UV index are May, August and November (UV index 5).
Average cloud cover in February
San Francisco, Costa Rica
- Average cloud cover in February: 19
The month with the most cloud cover is October (Cloud cover 54).
The month with the least cloud cover is February (Cloud cover 19).
Average visibility in February
San Francisco, Costa Rica
- Average visibility in February: 10km
The months with the highest visibility are February and March (10km).
The months with the lowest visibility are August, September, October and November (7km).
San Francisco, Costa Rica
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