Millbrae weather
At 6:00 PM local time it was clear and 15°C (59°F). Mostly light, on-and-off rain; heavier around 3 AM (2.0 mm total). Best months for weather: Jun–Oct. Below: today's sky, the hour-by-hour rain chance and the 16-day forecast for Millbrae, California, United States.
Current conditions
- Clouds
- 0%
- Chance of rain
- 1%
- Rain
- 0.0 mm/h
Hourly Forecast
Mostly light, on-and-off rain; heavier around 3 AM (2.0 mm total)
Daily Forecast
Best Time to Visit
Peak season Jun–OctOff season Dec–Mar
About Millbrae weather
Is it raining in Millbrae right now?
No. It’s clear and 15° right now. Mostly light, on-and-off rain; heavier around 3 AM (2.0 mm total).
What’s the weather like in Millbrae this week?
Over the next 7 days, expect highs of 16–23° and lows of 10–15°. Rain is likely on 1 of 7 days (Sunday). The driest day looks like Saturday.
Has it been raining in Millbrae lately?
Barely. The past 7 days were mostly dry, with 0.0 mm of rain in total.
What should I pack for Millbrae?
For the coming week, bring an umbrella or rain jacket and a warm layer for the evenings.
Millbrae weather by month
When is the best time to visit Millbrae?
Based on weather alone, the best time to visit Millbrae is Jun–Oct, according to NASA's 2001–2025 climate averages. Dec–Mar tends to be the least pleasant. Average highs run from 13°C (56°F) in January to 19°C (66°F) in September.
What is the rainiest month in Millbrae?
December is the wettest month, with about 115 mm (4.5 in) of rain on average. August is the driest, with about 2 mm (0.1 in).
What is the hottest month in Millbrae?
September is the warmest, with average highs of 19°C (66°F) and lows of 13°C (56°F). January is the coolest, with highs of 13°C (56°F) and lows of 8°C (47°F).
Does Millbrae have a rainy season?
Not a strong one. No month averages more than 150 mm of rain; the wettest is December at about 115 mm (4.5 in).
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis), forecast and current conditions from Open-Meteo. Page updated . How we rate months