Napa Weather in June: Temperature, Precipitation, Wind
Napa, United States in June experiences a Mediterranean climate characterized by warm, dry conditions. The average temperature hovers around 16.8°C (62.2°F), with daytime highs reaching 22.7°C (72.9°F) and nighttime lows dipping to 12.3°C (54.1°F). These temperatures create comfortable conditions for exploring the region’s renowned vineyards and wineries.
June in Napa sees minimal precipitation, with an average of only 0.02 mm of rainfall. Rain occurs on approximately 2 days during the month, with a 6.7% probability of precipitation. The most common form of precipitation is rain, and partly cloudy days dominate the weather pattern.
Humidity levels in Napa during June average 69.4%, contributing to the region’s ideal grape-growing conditions. Wind speeds average 28.1 km/h (17.5 mph), with gusts reaching up to 36.9 km/h (22.9 mph). These breezes help moderate temperatures and maintain air quality in the valley.
Cloud cover in Napa during June averages 38.6%, allowing for ample sunshine. The UV index reaches a high of 9.7, indicating very strong solar radiation. Visitors to popular attractions like the Napa Valley Wine Train or the Oxbow Public Market should take precautions against sun exposure.
Visibility in Napa remains excellent throughout June, averaging 15.7 km (9.8 miles). This clarity enhances views of the surrounding vineyards and rolling hills. Atmospheric pressure averages 1012.9 hPa, contributing to the region’s stable weather patterns.
Sunrise in Napa occurs around 5:46 AM, while sunset takes place at approximately 8:33 PM, providing long days for outdoor activities and wine tasting. The extended daylight hours and pleasant temperatures make June an ideal time to visit Napa’s world-famous wineries and enjoy al fresco dining in the charming downtown area.
What is the temperature in Napa in June?
Average air temperature in Napa is 16.8°C (62.2°F) in June. The outside temperature in Napa feels like 16.8°C (62.2°F) on a typical June day. The highest average temperature during sunny days is 22.7°C (72.9°F) and feels like 22.7°C (72.9°F). The lowest average temperature after dark is 12.3°C (54.1°F) which feels like 12.3°C (54.1°F).
How hot is Napa in June?
The hot temperature in June in Napa rises to 29.8°C (85.6°F) on sunny days with low cloud coverage and 69.4% humidity. During hottest days of June it feels like 29.4 °C (84.9°F). The average maximum temp in Napa is 22.7°C (84.9°F) during day time in June.
How cold is Napa in June?
The coldest temp in Napa in June drops to 6.6°C (43.9°F) during the cold nights. With 28.1km/h (17.4mph) winds and 69.4% humidity it feels like 6.6°C (43.9°F) on the coldest nights. The average minimum temperature is 12.3°C (54.1°F) during night time in June.
Does it rain in Napa in June?
Yes, it rains for 2 days in Napa, United States in June averaging 0.02 mm of precipitation. Napa has a 6.7% chance for rain throughout the entire month of June.
How much does it rain in Napa throughout June?
Napa has 0.02 mm (0 inch) of rain per day on average in June. It rains for an average of 2 days out of the entire month.
Is Napa windy in June?
The average speed of wind in Napa, United States during June is 28.1km/h (17.4mph) and average windgust is 36.9km/h (22.9mph). On some days in June wind can reach up to 41.7km/h (25.9mph).
What is the direction of the wind in Napa in June?
Most days of June the wind is blowing from Southwest direction in Napa.
What are the humidity levels in Napa in June?
The average humidity levels in Napa in June are 69.4%. Daily humidity levels in Napa range from 55% to 75.4% during June.
How many hours of daylight are in Napa in June?
Napa has 14 hours 47 minutes of daylight in June on average. Sunset and sunrise times gradually change throughout the month. Sunrise in Napa in June is at 5:46:18 and the sunset is at 20:33:31.
What is the cloud coverage in Napa in June?
Clouds cover 38.6% of the sky on average throughout June in Napa. The cloud coverage ranges from 0.6% to 68.8% depending on the day of the month.
What is the UV level in June in Napa?
The average UV index in Napa is 9.7 in June. UV levels change throughout the month and range from 5 to 10.
What is the solar radiation in Napa in June?
The average solar radiation is 310.5 W/m2 (Watts per square meter) in Napa during June. However solar radiation levels change throughout the month and range from 131.9 W/m2 to 364.4 W/m2.
What is the solar energy during June in Napa?
The average solar energy during June in Napa is 26.8 MJ/m2 (megajoules per square metre). Solar energy ranges from 11.3 MJ/m2, to 31.4 MJ/m2 during June.
Are there severe weather risks in Napa in June?
Yes, there is a 10% risk for severe weather in Napa, United States in June.
What is the air pressure in Napa in June?
On average the air pressure in Napa in June is 1012.9 mb (millibars). Throughout the month the sea level pressure ranges from 1008.1 mb to 1018.2 mb.
What is the visibility in Napa in June?
The average daylight visibility in Napa in June is 15.7 km (9.8 miles). Depending on the precipitation the visibility ranges from 14.3 km (8.9 miles) to 16 km (9.9 miles) throughout June.
What is the dew point in Napa in June?
The average dew point in Napa during June is 10.8°C (51.4°F).
Where is the data for Napa climate in June coming from?
The climate data for Napa, California, United States in June is collected from the following weather stations.
- VACAVILLE NUT TREE AIRPORT, CA US
- NAPA CO AIRPORT, CA US
- PETALUMA MUNICIPAL AIRPORT, CA US
- Oakville CA US CIMIS
- FW1058 American Canyon CA US
- FW7520 Sonoma CA US
- KAPC
- KDVO
- KVCB