AI-generatedBerkeley at a glance
- Best time
- Apr – Oct
- Warmest month
- Sep · 23°
- Warmest sea
- Sep · 14.6°
- Sunshine a year
- 2,890 h
- Rain a year
- 470 mm
- Climate
- Maritime
- Time zone
- UTC−8 / UTC−7
- Elevation
- 52 m
Climate in Berkeley
Berkeley has a maritime climate with moderate summers and cool, often grey winters. September is the warmest month with average highs of 23 °C, while January is the coolest at 14 °C. With around 2,890 hours of sunshine a year, Berkeley is sunny; June is the sunniest month with 11.0 hours a day.
Holiday weather through the year
Best time to visit Berkeley
The best time to visit Berkeley is from April to October. The sea stays too cool for a classic beach holiday: even in September it only reaches 14.6 °C. For sightseeing, day trips and hiking, conditions are most comfortable from February to November. The wettest month is February with 93 mm of precipitation.
Berkeley through the seasons
How the weather changes over the seasons, with averages for each.
Berkeley in spring
Mar – May
Excellent
- 17–20 °C by day
- Sea 12 °C
- 8.6 h of sun a day
- 16 rainy days in all
Berkeley in summer
Jun – Aug
Excellent
- 22 °C by day
- Sea 14 °C
- 10.5 h of sun a day
- 1 rainy day in all
Berkeley in autumn
Sep – Nov
Excellent
- 18–23 °C by day
- Sea 14 °C
- 7.5 h of sun a day
- 10 rainy days in all
Berkeley in winter
Dec – Feb
Fair
- 14–16 °C by day
- Sea 12 °C
- 5.0 h of sun a day
- 28 rainy days in all
Which month for what?
Beach & swimming
No month
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
Feb – Nov
15–28 °C and not too much rain
Find your perfect month
Tell us what you like and we rate every month in Berkeley for you.
Your best months: June – August
Based on the climate averages; tap a month to see its details.
Weather in October
Weather in October
Holiday weather in October
Excellent
Best time to visit: April – October
Where to go in OctoberSea temperature in October
Good forSightseeing & walks
A typical day in October
- Morning, 08:00: about 12°
- Midday, 13:00: about 21°
- Afternoon, 16:00: about 21°
- Evening, 20:00: about 17°
- Night, 23:00: about 14°
07:1618:33
Cool evenings: pack a jumper or a jacket.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 07:00–07:52 · evening 17:58–18:49
- Blue hour
- Morning 06:50–07:00 · evening 18:49–19:00
Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.
October in Berkeley compared with home
Loading the climate at home …
Early or late October?
In October, daytime highs fall from about 23° at the start of the month to 20° at the end. The sea cools from 14° to 13°. The days get 1.1 h shorter.
| October | 1 Oct | 31 Oct |
|---|---|---|
| Daytime high | 23° | 20° |
| Night-time low | 12° | 9° |
| Sea | 14° | 13° |
| Daylight | 11.8 h | 10.7 h |
What is the weather like in Berkeley in October?
In October, Berkeley is warm: daytime highs average 22 °C, and nights cool down to about 11 °C. The sea averages 13.9 °C – swimming is only for the hardy. The sun shines for around 7.5 hours a day. Rain is rare: about 3 days bring 23 mm in total. All in all, October is an excellent month for a holiday in Berkeley.
More details for October
- Daylight
- 11 h 17 min07:16 – 18:33
- UV index
- 5 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 14 km/haverage daily peakAll months
- Cloud cover
- 39 %on averageAll months
- Hot days
- 1 day30 °C or moreAll months
- Time zone
- UTC−7offset from UTC
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %75 %
- Few rainy daysweight 30 %100 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in October
- Sunscreen
- A jumper for the evenings
Compare two months in Berkeley
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
May has the better holiday weather in Berkeley: score 100 against 95. In May, days are 2 °C cooler than in October. The sea is 2 °C cooler in May. The sun shines 3 hours longer a day in May.
| Month | October | May |
|---|---|---|
| Holiday weather score | 95 | 100better |
| Daytime high | 22° | 20° |
| Night-time low | 11° | 11° |
| Sea | 13.9° | 11.7° |
| Sunshine | 7.5 h | 10.1 hbetter |
| Rainy days | 3 | 3 |
| Rainfall | 23 mm | 16 mm |
Based on the climate averages 1996–2025.
Berkeley month by month
The typical weather for every month at a glance.
56January14° · Sea 12° · 4.7 h
In January, Berkeley is cool: daytime highs average 14 °C, and nights cool down to about 6 °C. The sea averages 11.7 °C – swimming is only for the hardy. Expect around 4.7 hours of sunshine a day. Rain falls on about 9 days, adding up to 89 mm. All in all, January is a so-so month for a holiday in Berkeley.
Berkeley in January67February16° · Sea 12° · 5.7 h
In February, Berkeley is cool: daytime highs average 16 °C, and nights cool down to about 7 °C. The sea averages 11.8 °C – swimming is only for the hardy. Expect around 5.7 hours of sunshine a day. Rain falls on about 9 days, adding up to 93 mm. All in all, February is a good month for a holiday in Berkeley.
Berkeley in February79March17° · Sea 12° · 6.8 h
In March, Berkeley is mild: daytime highs average 17 °C, and nights cool down to about 8 °C. The sea averages 11.8 °C – swimming is only for the hardy. The sun shines for around 6.8 hours a day. Rain falls on about 9 days, adding up to 67 mm. All in all, March is a good month for a holiday in Berkeley.
Berkeley in March99April19° · Sea 11° · 8.9 h
In April, Berkeley is mild: daytime highs average 19 °C, and nights cool down to about 9 °C. The sea averages 11.4 °C – swimming is only for the hardy. The sun shines for around 8.9 hours a day. Rain is rare: about 5 days bring 33 mm in total. All in all, April is an excellent month for a holiday in Berkeley.
Berkeley in April100May20° · Sea 12° · 10.1 h
In May, Berkeley is mild: daytime highs average 20 °C, and nights cool down to about 11 °C. The sea averages 11.7 °C – swimming is only for the hardy. With around 10.1 hours of sunshine a day, there is plenty of sun. Rain is rare: about 3 days bring 16 mm in total. All in all, May is an excellent month for a holiday in Berkeley.
Berkeley in May100June22° · Sea 12° · 11.0 h
In June, Berkeley is warm: daytime highs average 22 °C, and nights cool down to about 12 °C. The sea averages 12.3 °C – swimming is only for the hardy. With around 11.0 hours of sunshine a day, there is plenty of sun. It hardly ever rains. All in all, June is an excellent month for a holiday in Berkeley.
Berkeley in June100July22° · Sea 14° · 10.7 h
In July, Berkeley is warm: daytime highs average 22 °C, and nights cool down to about 13 °C. The sea averages 13.6 °C – swimming is only for the hardy. With around 10.7 hours of sunshine a day, there is plenty of sun. It hardly ever rains. All in all, July is an excellent month for a holiday in Berkeley.
Berkeley in July100August22° · Sea 15° · 9.9 h
In August, Berkeley is warm: daytime highs average 22 °C, and nights cool down to about 14 °C. The sea averages 14.5 °C – swimming is only for the hardy. With around 9.9 hours of sunshine a day, there is plenty of sun. It hardly ever rains. All in all, August is an excellent month for a holiday in Berkeley.
Berkeley in August100September23° · Sea 15° · 9.1 h
In September, Berkeley is warm: daytime highs average 23 °C, and nights cool down to about 13 °C. The sea averages 14.6 °C – swimming is only for the hardy. With around 9.1 hours of sunshine a day, there is plenty of sun. It hardly ever rains. All in all, September is an excellent month for a holiday in Berkeley.
Berkeley in September95October22° · Sea 14° · 7.5 h
In October, Berkeley is warm: daytime highs average 22 °C, and nights cool down to about 11 °C. The sea averages 13.9 °C – swimming is only for the hardy. The sun shines for around 7.5 hours a day. Rain is rare: about 3 days bring 23 mm in total. All in all, October is an excellent month for a holiday in Berkeley.
Berkeley in October83November18° · Sea 13° · 5.8 h
In November, Berkeley is mild: daytime highs average 18 °C, and nights cool down to about 8 °C. The sea averages 13.0 °C – swimming is only for the hardy. Expect around 5.8 hours of sunshine a day. Rain falls on about 6 days, adding up to 50 mm. All in all, November is an excellent month for a holiday in Berkeley.
Berkeley in November54December14° · Sea 12° · 4.6 h
In December, Berkeley is cool: daytime highs average 14 °C, and nights cool down to about 6 °C. The sea averages 12.1 °C – swimming is only for the hardy. Expect around 4.6 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 93 mm in total. All in all, December is a so-so month for a holiday in Berkeley.
Berkeley in DecemberClimate in detail
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Berkeley
How warm the nights get in each month, from the mean night-time low. Tap a month for details.
- Cold 0–8°
- Cool 8–15°
CoolOctober: nights around 11°. A duvet at night and a jumper for the evening.
The coolest nights are in January (6°), the warmest in August (14°). Nights fall below 8 °C on average from December to February, so the room should be heated.
Temperatures through the year
Average daytime high, night-time low and sea temperature per month.
| Month | Score | Day | Night | Sea | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|---|
| JanuaryJan | 56 | 14° | 6° | 11.7° | 4.7 h | 9 | 89 |
| FebruaryFeb | 67 | 16° | 7° | 11.8° | 5.7 h | 9 | 93 |
| MarchMar | 79 | 17° | 8° | 11.8° | 6.8 h | 9 | 67 |
| AprilApr | 99 | 19° | 9° | 11.4° | 8.9 h | 5 | 33 |
| MayMay | 100 | 20° | 11° | 11.7° | 10.1 h | 3 | 16 |
| JuneJun | 100 | 22° | 12° | 12.3° | 11.0 h | 1 | 3 |
| JulyJul | 100 | 22° | 13° | 13.6° | 10.7 h | 0 | 0 |
| AugustAug | 100 | 22° | 14° | 14.5° | 9.9 h | 0 | 1 |
| SeptemberSep | 100 | 23° | 13° | 14.6° | 9.1 h | 1 | 2 |
| OctoberOct | 95 | 22° | 11° | 13.9° | 7.5 h | 3 | 23 |
| NovemberNov | 83 | 18° | 8° | 13.0° | 5.8 h | 6 | 50 |
| DecemberDec | 54 | 14° | 6° | 12.1° | 4.6 h | 10 | 93 |
Climate averages 1996–2025 (sunshine partly WMO station normals 1991–2020), not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences
37.87° N, 122.27° W · 52 m · America/Los_Angeles
Sea temperature in Berkeley
Monthly sea surface temperature with the range of cooler and warmer years.
8 in 10 years: 12.8 – 15.4 °C
Swimming season: Always below 20 °C
- cold
- fresh
- refreshing
- pleasant
- warm
- very warm
The sea temperature in Berkeley ranges from 11.4 °C in April to 14.6 °C in September. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.
The sea temperature varies from year to year: in September, eight out of ten years were between 13.5 and 16.0 °C.
| Month | Average | Cool year | Warm year | Feels |
|---|---|---|---|---|
| JanuaryJan | 11.7° | 10.6° | 12.7° | cold |
| FebruaryFeb | 11.8° | 10.8° | 13.0° | cold |
| MarchMar | 11.8° | 10.5° | 13.3° | cold |
| AprilApr | 11.4° | 10.1° | 12.5° | cold |
| MayMay | 11.7° | 10.9° | 12.8° | cold |
| JuneJun | 12.3° | 11.0° | 13.9° | cold |
| JulyJul | 13.6° | 12.6° | 14.4° | cold |
| AugustAug | 14.5° | 13.2° | 15.7° | cold |
| SeptemberSep | 14.6° | 13.5° | 16.0° | cold |
| OctoberOct | 13.9° | 12.8° | 15.4° | cold |
| NovemberNov | 13.0° | 12.0° | 14.4° | cold |
| DecemberDec | 12.1° | 11.0° | 13.3° | cold |
Sunshine hours in Berkeley
Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.
In October, the sun shines for about 7.5 of 11.3 hours of daylight in Berkeley, 66 % of the daylight hours.
Sunshine hours: estimated from radiation data (ERA5, 1996–2025) and calibrated against measured station values; no weather station is close enough here. Daylight is the time from sunrise to sunset on the 15th of the month.
Rain in Berkeley: rainy days and rainfall
A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.
In October, Berkeley has about 3 rainy days with 23 mm of rain in total.
UV index in Berkeley
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 5 · moderateAround midday seek shade; use sunscreen, a hat and sunglasses.
The sun is strongest in June (UV 10).
Minutes until sunburn in October
- Very fair skin
- about 30 min
- Fair skin
- about 35 min
- Light brown skin
- about 50 min
- Olive skin
- about 65 min
Rough guide for unprotected skin at noon under a clear sky; clouds lengthen the time, water, sand and snow shorten it. Sunscreen extends the time only partly.
Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.
Wind and clouds in Berkeley
How breezy and how cloudy Berkeley is through the year. Tap a month to select it on the whole page.
Wind
Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.
In October, the wind in Berkeley typically peaks at 14 km/h during the day: Beaufort 3, gentle breeze.
Breezy months for windsurfing and kiting
The daily breeze rarely reaches Beaufort 4 (20 km/h), so wind sports depend on single windy days.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 39 % of the sky over Berkeley: mostly sunny, with about 7.5 hours of sunshine a day.
Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.
Heat and humidity in Berkeley
How often the day gets hot in Berkeley (30 °C and more), and in which months heat and humidity come together. Tap a month to select it.
Heat calendar
- pleasant
- some hot or muggy days
- often muggy
- often hot
- hot and muggy
In October, Berkeley has about 1 hot day, with an average daytime high of 22 °C: pleasant. Heat plays no part this month.
Hot days reach at least 30 °C; a month counts as muggy when the mean dew point reaches 18 °C on at least 15 days. Averages from ERA5 and ERA5-Land, 1996–2025. Muggy nights through the year
Planning a trip to Berkeley
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Berkeley in the school holidays
How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.
Berkeley has its best school-holiday weather during May half-term (score 100) and its weakest during the Christmas holidays (score 55).
- 93
Easter holidays
Mar – Apr
Excellent
- 18 °C by day
- Sea 12 °C
- 8.3 h of sun a day
- 6 rainy days a month
Good for: Sightseeing & walks
- 100
May half-term
May – Jun
ExcellentBest holidays
- 20 °C by day
- Sea 12 °C
- 10.3 h of sun a day
- 2 rainy days a month
Good for: Sightseeing & walks
- 100
Summer holidays
Jul – Aug
Excellent
- 22 °C by day
- Sea 14 °C
- 10.2 h of sun a day
- 0 rainy days a month
Good for: Sightseeing & walks
- 95
October half-term
Oct
Excellent
- 22 °C by day
- Sea 14 °C
- 7.5 h of sun a day
- 3 rainy days a month
Good for: Sightseeing & walks
- 55
Christmas holidays
Dec – Jan
Fair
- 14 °C by day
- Sea 12 °C
- 4.7 h of sun a day
- 9 rainy days a month
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 10 h 50 min
- Distance
- 8,590 km
- Time zone
- UTC−7
- Jet lag
- About 5 days (8 h west)
Rule of thumb for flying west: for a few days before, stay up a little later, and get afternoon and evening light at your destination.
Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.
Compare & alternatives
Berkeley compared
Put Berkeley side by side with another destination.
Berkeley vs Oakland
In October the holiday weather in Berkeley and Oakland is about equally good (score 95 vs 95). During the day it is about as warm in Oakland as in Berkeley. The sea is about equally warm.
| in October | Berkeley | Oakland |
|---|---|---|
| Holiday weather score | 95 | 95 |
| Daytime high | 22° | 22° |
| Sea | 14° | 14° |
| Sunshine | 8 h | 8 h |
| Rainy days | 3 | 3 |
| Best time | Apr – Oct | Apr – Oct |
Through the year
USA in October: the best places
In October, Berkeley ranks 12 among the 31 nearest destinations in this country.
- Mariposa (Yosemite)24°98
- 2Fresno26°98
- 3Los Angeles23°19°98
- 4Long Beach26°19°98
- 5Bakersfield27°97
- 6Anaheim25°97
- 7San Jose24°96
- 8Santa Cruz19°14°96
- 12BerkeleyThis page22°14°95
Near Berkeley
Other destinations close by.
Places with a climate like Berkeley
Destinations whose weather through the year is closest to Berkeley's – good alternatives.
Frequently asked questions about Berkeley
When is the best time to visit Berkeley?
The best time to visit Berkeley is from April to October. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
How warm is the sea in Berkeley?
The sea temperature in Berkeley ranges from 11.4 °C in April to 14.6 °C in September. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.
Can you swim in Berkeley in October?
Only if you don't mind cold water: in October the sea averages just 13.9 °C. Comfortable swimming temperatures are not reached at any time of year.
What is the warmest month in Berkeley?
September is the warmest month, with average highs of 23 °C and nights around 13 °C. January is the coolest month at 14 °C.
When does it rain most in Berkeley?
The wettest month is February with 93 mm of precipitation. The driest month is July with 0 mm.
How many hours of sunshine does Berkeley get?
Berkeley gets around 2,890 hours of sunshine a year. The sunniest month is June with 11.0 hours a day; in December there are 4.6 hours a day.
What time zone is Berkeley in?
Berkeley is on UTC−8 in January and UTC−7 in July.
How long is the flight from London to Berkeley?
A nonstop flight from London to Berkeley takes about 10 h 50 min, for a straight-line distance of about 8,590 km.
Which school holidays are best for Berkeley?
Berkeley has its best school-holiday weather during May half-term (score 100) and its weakest during the Christmas holidays (score 55). Holiday ratings (0–100): Easter holidays 93, May half-term 100, summer holidays 100, October half-term 95, Christmas holidays 55.