Costa Mesa Weather in January
January in Costa Mesa brings pleasant temperatures, with highs of 20°C (68°F) and nights dropping to 9°C (48°F). With perfect weather conditions overall, it's a good time to visit.
Rainfall in Costa Mesa in January
This month experiences about 5 days of rain according to historical data, averaging 39 mm (1.5 in). The rain this month typically falls in concentrated bursts rather than all-day showers. Expect a few heavier spells rather than constant grey skies.
Temperature in Costa Mesa in January
The perfect temperature in Costa Mesa in January makes it a solid month to visit, with 20°C (68°F) during the day and 9°C (48°F) at night. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. With lows around 9°C (48°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.
Sunshine in Costa Mesa in January
There are approximately 198 hours of sunshine this month, resulting in mostly clear days.So this is a great month to visit if you prefer dry days with pleasant temperatures.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Costa Mesa's climate page.
Costa Mesa Temperature in January
Min Temperature
9°C (48°F)
Max Temperature
20°C (68°F)
Chance of Rain
17%
Precipitation
39 mm (1.5 in)
Rainy days
5 days
Sunshine
198 hours *
Percentage Sunshine
*
Best Places in the United States of America in January
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in January →
perfect weather
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tolerable
unpleasant
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What to Wear in Costa Mesa in January
Pleasant temperatures in January mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Pack a light rain jacket or compact umbrella for occasional showers. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Costa Mesa in January
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Costa Mesa's climate page.
See the full Costa Mesa climate overview or explore weather in the United States of America.
