Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
January's advent presents an average high-temperature of a still mild 56.7°F (13.7°C), indicating a slight variation from the conditions of the previous month. Martinez's average low-temperature during January nights is observed to be a wintry 42.3°F (5.7°C).Humidity
The average relative humidity in January is 73%.Rainfall
In Martinez, in January, it is raining for 7 days, with typically 0.79" (20mm) of accumulated precipitation. In Martinez, during the entire year, the rain falls for 48.9 days and collects up to 4.96" (126mm) of precipitation.Daylight
The average length of the day in January is 9h and 53min.On the first day of the month, sunrise is at 7:24 am and sunset at 4:59 pm. On the last day of January, sunrise is at 7:13 am and sunset at 5:30 pm PST.
Sunshine
In Martinez, California, the average sunshine in January is 5.9h.UV index
January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Martinez. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: In January, an average UV index of 3 transforms into the following instructions:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are January temperatures?
What is the average humidity in January?
How much does it rain in January?
What is the average length of the day in January?
What time are sunrise and sunset in January?
How many hours of sunshine does Martinez have in January?
What is the month with the lowest UV index?
How high is the UV index in January?
Average temperature in January
Martinez, CA
- Average high temperature in January: 56.7°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is December (55.4°F).
- Average low temperature in January: 42.3°F
The month with the highest average low temperature is September (57.6°F).
The coldest months (with the lowest average low temperature) are January and December (42.3°F).
Average pressure in January
Martinez, CA
- Average pressure in January: 30.14"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in January
Martinez, CA
- Average wind speed in January: 4.6mph
The windiest month (with the highest average wind speed) is May (7.4mph).
The calmest month (with the lowest average wind speed) is November (4.5mph).
Average humidity in January
Martinez, CA
- Average humidity in January: 73%
The month with the highest relative humidity is March (74%).
The months with the lowest relative humidity are September and October (56%).
Average rainfall in January
Martinez, CA
- Average rainfall in January: 0.79"
The wettest month (with the highest rainfall) is February (0.98").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in January
Martinez, CA
- Average rainfall days in January: 7 days
The month with the highest number of rainy days is March (8.3 days).
The month with the least rainy days is August (1 days).
Average daylight in January /
Average sunshine in January
Martinez, CA
- Average daylight in January: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in January: 5h and 5min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in January
Martinez, CA
- Average sunshine days in January: 23.1 days
The month with the most sunshine days is July (29 days).
The months with the least sunshine days are February and March (22.1 days).
Average UV index in January
Martinez, CA
- Average UV index in January: 3
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in January
Martinez, CA
- Average cloud cover in January: 35
The months with the most cloud cover are March and December (Cloud cover 36).
The month with the least cloud cover is July (Cloud cover 7).
Average visibility in January
Martinez, CA
- Average visibility in January: 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).
Martinez, California, USA
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