Last updated: February 24, 2025
In January, Berkeley, United States experiences a delightful blend of winter weather, with average temperatures hovering around 10°C (51°F). Daily highs can reach a pleasant 25°C (78°F), while chilly nights dip to a brisk 0°C (32°F). Rainfall is quite common, with 94 mm (3.7 in) of precipitation spread over 8 days, contributing to the region's lush landscape. The humidity level is relatively high at 82%, adding to the cool, crisp atmosphere, making January a refreshing and vibrant time in this charming coastal city.
In January, Berkeley experiences a refreshing transition into the new year, with temperatures ranging from a chilly 0°C (32°F) to a pleasant 25°C (78°F). The average temperature settles around 10°C (51°F), making it a comfortable time for outdoor activities. As the month progresses into February, the trend continues with slightly warmer nights and days. Notably, the minimum temperature edges up to 1°C (34°F), while the maximum remains consistent at 26°C (78°F). This gradual warming hints at the milder, sunny days that are characteristic of early spring in the region. As winter wraps up, the climate hints at the vibrant energy of the months to come, showcasing Berkeley’s ability to offer both crisp mornings and inviting afternoons.
In January, Berkeley experiences a peak in precipitation, with an average of 94 mm (3.7 in) falling over 8 days. This abundance of rain marks a contrast to the drier months that follow, as February closely mirrors January with 91 mm (3.6 in), before a significant drop occurs in March to 73 mm (2.9 in). As the spring months approach, rainfall continues to decline sharply, with April receiving only 29 mm (1.2 in) and May dropping further to a mere 18 mm (0.7 in). By summer, precipitation almost disappears entirely, with July and August registering no rainfall at all. This trend illustrates a clear seasonal shift, where early year moisture gives way to extended dry spells from late spring through summer, setting the stage for Berkeley’s Mediterranean climate.
In January, Berkeley experiences a humidity level of 82%, which sets the tone for the typically damp winter months. This figure slightly climbs to 84% in February, before returning to January's level in March, highlighting a period of steady moisture. As spring approaches, April sees a decline to 78%, paving the way for drier conditions. By May, humidity drops significantly to 71%, and continues to decrease through the summer months, reaching its lowest point at 54% in August. This trend of reduced humidity persists into early fall, with levels hovering around 55% in September before beginning to rise again. As the year concludes, humidity gradually increases, returning to 80% by December. Overall, Berkeley’s humidity trends illustrate a clear seasonal variation, characterized by high moisture in the winter and a notable decrease during the summer.
In January, Berkeley's UV Index sits comfortably at 3, indicating a moderate exposure level, where a burn can occur in about 30 minutes of unprotected sun exposure. As the year progresses into February, the UV Index rises to 5, maintaining the same exposure category and burn time. The real shift happens in March when the index jumps to 8, marking the beginning of a very high exposure category, with burn times halving to just 15 minutes. This trend continues into the peak summer months, where June and July experience an extreme UV Index of 11, necessitating vigilant protection as sunburn may occur in as little as 10 minutes. August and September see a slight drop but remain in the very high category, while October returns to a more moderate level of 7 with a burn time of 25 minutes. As the year winds down, November and December revert back to moderate exposure, closing the annual cycle with UV indices of 4 and 3, respectively. For more detailed insights, check out Berkeley UV Index.
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January in Berkeley, United States, typically ushers in 151 hours of sunshine, setting the stage for a gradual increase in brightness as the year progresses. As winter gives way to spring, February enjoys a rise to 216 hours, hinting at the longer, sunnier days ahead. March continues this upward trend with 263 hours, culminating in April's splendid 296 hours of sunshine. The peak of this radiant season arrives in June with 355 hours, the sun gracing Berkeley for nearly every hour of the day. However, as summer transitions into fall, the sunshine begins to wane gradually, dropping to 276 hours in October and further to 194 hours by December. Overall, the pattern reveals a vibrant crescendo of sunshine from January through June, before a gentle fade into the cooler months, making Berkeley a luminous escape in the early part of the year.
In Berkeley, January marks the beginning of a weather transition with a 39% chance of sunny days, indicating a cooler and cloudier start to the year. As winter gives way to spring, this likelihood steadily increases, peaking in the warmer months—May boasts a promising 70% chance of sunshine. Moving beyond January, February sees a notable uplift to 56%, while March and April maintain a healthy average around 60%, suggesting that as winter fades, so too does the gloom. This gradual ascent in sunny days reveals a clear trend: Berkeley’s weather tends to brighten significantly as the calendar progresses, making it a perfect spot for those looking to soak up sun in the spring and summer months.
In January, Berkeley experiences about 9 hours of daylight, marking the start of a gradual increase as winter transitions into spring. As the month progresses into February, daylight extends to 10 hours, hinting at the longer days to come. This trend continues into March with 11 hours of sunlight, paving the way for a burst of brightness in April when daylight peaks at 13 hours. The length remains stable at 14 hours from May through July, creating a perfect backdrop for outdoor activities in the heart of summer. As the days begin to shorten in late summer, August offers 13 hours, followed by a gentle decline in September to 12 hours. The descent into autumn continues with 11 hours in October and 10 hours in November, before returning to 9 hours as December wraps the year in shorter, cozy days. This rhythmic ebb and flow of daylight is a captivating reminder of the changing seasons in Berkeley.
In January, Berkeley experiences a gentle breeze with an average wind speed of 2.4 m/s (5 mph), marking the beginning of the year with calm conditions. As winter transitions into early spring, this tranquility gradually gives way to slightly brisker winds, peaking at 3.9 m/s (9 mph) in May. This upward trend continues until April, when winds reach 3.4 m/s (8 mph), creating a refreshing atmosphere that foreshadows the warmth of summer. Following May, the wind speeds begin to taper off, with a noticeable decline seen from July through November, where the average dips to 1.9 m/s (4 mph) in November. This seasonal pattern highlights the dynamic nature of Berkeley's wind, where winter heralds calm beginnings and spring ushers in lively breezes, only to settle into gentle gusts as the year winds down.
The weather in Berkeley changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of January's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Berkeley and find detailed weather information for every month.
In January, temperatures range from a minimum of 0°C (32°F) to a maximum of 25°C (78°F), with an average temperature of 10°C (51°F). The month experiences around 94 mm (3.7 in) of precipitation over 8 days, and the humidity is relatively high at 82%. February shows a slight increase in temperatures, with a minimum of 1°C (34°F), an average of 11°C (53°F), and a maximum staying at 26°C (78°F). Precipitation is slightly lower at 91 mm (3.6 in), also spread over 8 days, while humidity rises to 84%. To learn more about February weather patterns, visit Berkeley weather in February.
In January, the weather features cooler temperatures, with a minimum of 0°C (32°F) and an average of 10°C (51°F), reaching a maximum of 25°C (78°F). The month experiences significant precipitation, totaling 94 mm (3.7 in) over 8 days, while maintaining a consistent humidity of 82%. In contrast, March sees a slight temperature increase, with a minimum of 3°C (37°F) and an average of 12°C (54°F), peaking at 27°C (81°F). Although March has more rainy days at 10, the overall precipitation is lower at 73 mm (2.9 in), still accompanied by the same level of humidity at 82%. For more detailed information about the weather in March, you can check Berkeley weather in March.
In January, temperatures range more widely, with a minimum of 0°C (32°F) and a maximum of 25°C (78°F), while April boasts milder temperatures, with a minimum of 4°C (40°F) and a maximum of 31°C (88°F). Precipitation is significantly higher in January, totaling 94 mm (3.7 in) across about 8 days, compared to just 29 mm (1.2 in) over 5 days in April. Additionally, January experiences higher humidity levels at 82%, while April's humidity slightly decreases to 78%. For more specific details about April weather, you can visit Berkeley weather in April.
In comparing the weather between January and May, there are notable differences in temperature and precipitation. January experiences cooler temperatures, with minimums dropping to 0°C (32°F) and averaging around 10°C (51°F), while May sees a significant warm-up, with minimums of 6°C (44°F) and averages climbing to 15°C (60°F). Maximum temperatures also differ markedly, with January peaking at 25°C (78°F), compared to May's higher maximum of 32°C (90°F). Precipitation is more prevalent in January, totaling 94 mm (3.7 in) over 8 days, while May is much drier, receiving only 18 mm (0.7 in) over 2 days. Additionally, humidity levels in January are higher at 82%, compared to May's more comfortable 71%. For a deeper dive into May's climate specifics, check out Berkeley weather in May.
In January, the weather tends to be cooler with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 25°C (78°F), and an average temperature of 10°C (51°F). It is also relatively wet, with 94 mm (3.7 in) of precipitation and an average humidity of 82%, making it a damp month. In stark contrast, June showcases a significant warming trend, with minimum temperatures of 9°C (49°F) and maximum temperatures peaking at 37°C (99°F), leading to a much higher average of 18°C (64°F). Moreover, June is notably dry, with just 2 mm (0.1 in) of precipitation and no rainy days, and a lower humidity of 64%. For more details about Berkeley's June weather, check out Berkeley weather in June.
January and July present significantly different weather patterns. In January, temperatures range from a chilly minimum of 0°C (32°F) to a maximum of 25°C (78°F), with an average temperature of about 10°C (51°F). This month also experiences considerable rainfall, totaling 94 mm (3.7 in) over eight days, and humidity levels are high at 82%. In contrast, July boasts much warmer temperatures with a minimum of 11°C (53°F), an average of 18°C (64°F), and a maximum reaching 32°C (90°F). Notably, July is dry, with no recorded precipitation and a lower humidity level of 58%. For more details on July weather, check out Berkeley weather in July.
In January, the weather is notably cooler, with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 25°C (78°F), and an average of 10°C (51°F). This month also experiences significant precipitation, averaging 94 mm (3.7 in) over about 8 days, contributing to a high humidity level of 82%. In contrast, August showcases much warmer weather, with temperatures starting at a minimum of 11°C (52°F) and soaring to a maximum of 37°C (99°F), averaging 18°C (65°F). Remarkably, August sees no recorded precipitation, with dry conditions persisting throughout the month and a lower humidity of 54%. For more details on the August climate, you can visit Berkeley weather in August.
In January, the weather is much cooler, with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 25°C (78°F), accompanied by relatively high humidity at 82% and significant precipitation of 94 mm (3.7 in) over about 8 days. In contrast, September boasts a milder climate with minimum temperatures of 8°C (48°F) and highs that can soar up to 40°C (104°F), but it typically experiences very little precipitation, with only 1 mm (0.0 in) recorded across the month, and low humidity at 55%. The stark differences highlight how January tends to be wetter and chillier, while September offers warmer and drier conditions. For more details, you can check Berkeley weather in September.
In January, the weather is generally cooler, with minimum temperatures around 0°C (32°F) and an average of 10°C (51°F), while October experiences milder conditions with minimums at 5°C (41°F) and an average of 17°C (63°F). The maximum temperatures in January can reach up to 25°C (78°F), whereas in October, they can soar to 34°C (93°F). Additionally, January tends to be wetter, with about 94 mm (3.7 in) of precipitation over 8 days, compared to October's much drier environment, which only sees 24 mm (1.0 in) of rain in just 1 day. Humidity levels are also higher in January at 82%, while October boasts a more comfortable 62%. Discover more about the specific weather conditions in October by visiting Berkeley weather in October.
In January, the weather is generally cooler with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 25°C (78°F), creating a wider temperature variation compared to November, which sees a minimum of 3°C (37°F) and a maximum of 27°C (81°F). January experiences more precipitation, averaging 94 mm (3.7 in) over about 8 days, while November is drier with only 42 mm (1.7 in) over 5 days. Additionally, January has a higher humidity level at 82%, compared to November's 78%. For more details, you can visit Berkeley weather in November.
In comparing the weather conditions of January and December, we see some intriguing similarities and differences. Both months share an average temperature of 10°C (51°F), but January tends to be slightly cooler at night with a minimum temperature of 0°C (32°F), compared to December's minimum of 2°C (35°F). January also experiences a maximum temperature of 25°C (78°F), making it a bit warmer during the day than December, which peaks at 23°C (74°F). Precipitation is slightly higher in January, with 94 mm (3.7 in) over 8 days, compared to December’s 80 mm (3.2 in) across the same number of days. Notably, humidity levels are fairly comparable, with January at 82% and December at 80%. For more specifics on December's weather, you can explore Berkeley weather in December.
As January rolls into Berkeley, the weather brings a distinct change from the warmer months, characterized by cooler temperatures and higher humidity levels. With an average of 10°C (51°F), this month invites brisk air that contrasts sharply with the summer's warmth. Rainfall is more frequent, with about 94 mm over eight days, making it one of the wetter months of the year. This combination of cooler temperatures and increased precipitation contributes to the lush, green landscape typical of winter in Berkeley. For a deeper insight into Berkeley's year-round climate patterns, visit Berkeley Climate.