## San Leandro Weather: A Month-by-Month Guide to California's East Bay Climate
San Leandro, California, enjoys a classic Mediterranean climate – mild, wet winters and warm, dry summers. Located in the heart of the East Bay, it benefits from the moderating influence of the San Francisco Bay, resulting in less extreme temperatures than inland areas. Planning a visit or just curious about what to expect throughout the year? This comprehensive guide breaks down the San Leandro weather by month, helping you prepare for any season.
## **January: Cool and Wet Beginnings**
January in San Leandro is typically the coldest and wettest month. Average high temperatures hover around 56°F (13°C), and lows dip to around 44°F (7°C). Rainfall is frequent, with an average of around 4.5 inches spread over approximately 10-12 days. Expect overcast skies and occasional stronger storms. It's a good time for cozy indoor activities, but outdoor exploration is possible with proper rain gear.
## **February: Lingering Winter Showers**
February continues the winter pattern, though with slightly more sunshine. Average highs reach 59°F (15°C), and lows remain around 46°F (8°C). Rainfall is still common, averaging around 3.5 inches, but the days are gradually getting longer. The chance of a significant storm remains, so be prepared for potential travel disruptions.
## **March: Transition to Spring**
March marks a noticeable shift towards spring. Temperatures begin to climb, with average highs around 63°F (17°C) and lows around 48°F (9°C). Rainfall decreases to around 2.5 inches, and you'll see more sunny days interspersed with showers. Wildflowers start to bloom, adding color to the landscape.
## **April: Blossoming and Mild**
April is a beautiful month in San Leandro, with blossoming trees and pleasant temperatures. Average highs are around 68°F (20°C), and lows around 52°F (11°C). Rainfall is minimal, averaging just over 1 inch. It’s an ideal time for outdoor activities like hiking, biking, and exploring local parks.
## **May: Warm Days and Gentle Breezes**
May brings consistently warm and sunny weather. Average highs climb to 73°F (23°C), and lows settle around 56°F (13°C). Rainfall is rare, typically less than 0.5 inches. The Bay breeze keeps things comfortable, preventing temperatures from becoming excessively hot.
## **June: The Start of Summer Dryness**
June officially kicks off summer in San Leandro. Average highs reach 77°F (25°C), and lows are around 60°F (16°C). The weather is almost entirely dry, with very little rainfall expected. Expect long, sunny days perfect for enjoying the outdoors.
## **July: Peak Summer Heat**
July is typically the hottest month of the year. Average highs reach 81°F (27°C), and lows are around 63°F (17°C). While heat waves are possible, the Bay breeze usually provides some relief. Sunshine is abundant, and rainfall is virtually nonexistent.
## **August: Warm and Consistent**
August continues the pattern of warm, dry weather. Average highs remain around 80°F (27°C), and lows are around 62°F (17°C). Like July, it's a great time for outdoor adventures, but remember to stay hydrated and protect yourself from the sun.
## **September: Indian Summer Potential**
September often experiences an "Indian Summer" – a period of unusually warm and dry weather. Average highs are around 78°F (26°C), and lows are around 60°F (16°C). Rainfall remains scarce. This is a popular month for outdoor events and activities.
## **October: Cooling Temperatures and Possible Rain**
October sees a gradual cooling trend, with average highs around 72°F (22°C) and lows around 55°F (13°C). The chance of rainfall increases slightly, averaging around 1 inch. The fall foliage adds a beautiful touch to the landscape.
## **November: Return of the Showers**
November marks the return of more frequent showers. Average highs are around 63°F (17°C), and lows are around 48°F (9°C). Rainfall increases to around 2 inches. It’s a good time to prepare for the winter season.
## **December: Winter Arrives**
December brings cooler temperatures and increased rainfall. Average highs are around 56°F (13°C), and lows are around 44°F (7°C). Rainfall averages around 4 inches. The holiday season adds a festive atmosphere to the city.
## **San Leandro Weather by Month: A Quick Reference Table**
| Month | Avg High (°F) | Avg Low (°F) | Avg Rainfall (inches) |
|-----------|---------------|--------------|-----------------------|
| January | 56 | 44 | 4.5 |
| February | 59 | 46 | 3.5 |
| March | 63 | 48 | 2.5 |
| April | 68 | 52 | 1.1 |
| May | 73 | 56 | 0.4 |
| June | 77 | 60 | 0.1 |
| July | 81 | 63 | 0.1 |
| August | 80 | 62 | 0.1 |
| September | 78 | 60 | 0.3 |
| October | 72 | 55 | 1.0 |
| November | 63 | 48 | 2.0 |
| December | 56 | 44 | 4.0 |
## **Frequently Asked Questions (FAQ)**
**1. What is the rainiest month in San Leandro?**
January is typically the rainiest month.
**2. Does San Leandro get a lot of fog?**
San Leandro can experience fog, especially during the late spring and summer months, but it's usually less dense and persistent than in San Francisco.
**3. What is the average humidity in San Leandro?**
Average humidity levels range from around 60-80% in the winter to 50-60% in the summer.
**4. Are summers in San Leandro very hot?**
Summers are warm, but rarely excessively hot due to the Bay breeze. Highs typically reach the low 80s (°F).
**5. What should I pack if I'm visiting San Leandro in the fall?**
Layers are key! Pack a light jacket, long-sleeved shirts, and comfortable walking shoes. An umbrella is also a good idea, as rainfall is possible.
## **Resources**
* **National Weather Service - San Francisco:** [https://www.weather.gov/sfo/](https://www.weather.gov/sfo/)
* **AccuWeather - San Leandro, CA:** [https://www.accuweather.com/en/us/san-leandro/94577/daily-weather-forecast/348395](https://www.accuweather.com/en/us/san-leandro/94577/daily-weather-forecast/348395)
* **Climate-Data.org - San Leandro:** [https://en.climate-data.org/north-america/united-states/california/san-leandro/](https://en.climate-data.org/north-america/united-states/california/san-leandro/)
* **City of San Leandro Official Website:** [https://www.sanleandro.org/](https://www.sanleandro.org/)
