Long Beach, CA Climate & Monthly Averages
The climate of Long Beach
Long Beach runs on a dry-summer rhythm: the warmest months are also the driest. July averages 2 mm (0.1 in) while the wet season peaks in January at 2.8 inches (72 mm). Highs range from 64°F (18°C) to 80°F (27°C).
Climate quick facts
- Hottest month: August - highs near 80°F (27°C)
- Coldest month: January - highs near 64°F (18°C)
- Decade extremes (2015-2024): 107°F (41°C) high · 35°F (2°C) low
- Wettest month: January (6 rainy days) · Sunniest: July (13.0 h sun/day)
- Climate type: semi-arid
- Annual swing: 9°C between the average warmest and coolest month · day to night: 9°C
- Average humidity: 72%
Temperatures through the year
8 months average under 20 mm of rain, the longest unbroken stretch running April through November. January is the coolest month, with highs of 64°F (18°C) and lows near 47°F (8°C). Warmth peaks in August: highs of 80°F (27°C), lows of 65°F (18°C). Between the average August and the average January lie 9°C, a narrower spread than about 77% of the cities we track.
Rain, sun and snow
The wettest month is January (2.8 inches (72 mm) across 6 days) and the driest July. The gridded 2015-2024 daily record for this location tops out at 107°F (41°C) and bottoms at 35°F (2°C) - decade extremes, not all-time station records.
How Long Beach compares
- Rain or snow reaches the ground on 32 days a year - fewer wet days than all but 4% of the 3496 cities we track.
- Annual precipitation is 12.4 inches (315 mm) - drier than all but 8% of the 3496 cities we track.
- 60% of the year's precipitation falls in its wettest three months - more seasonal than 92% of the 3496 cities we track.
Ranked against every city in our dataset, each measured on the same ten-year window.
Monthly climate table
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 64° | 47° | 6 | 2.8 in | 8.4 h/day | 75% |
| February | 65° | 48° | 4 | 2.3 in | 9.2 h/day | 69% |
| March | 66° | 51° | 6 | 2.1 in | 10.4 h/day | 73% |
| April | 70° | 54° | 2 | 0.5 in | 11.4 h/day | 70% |
| May | 69° | 57° | 2 | 0.3 in | 11.8 h/day | 74% |
| June | 75° | 60° | 0 | 0.1 in | 12.4 h/day | 74% |
| July | 79° | 64° | 0 | 0.1 in | 13.0 h/day | 75% |
| August | 80° | 65° | 1 | 0.3 in | 12.1 h/day | 76% |
| September | 80° | 64° | 1 | 0.5 in | 11.2 h/day | 75% |
| October | 77° | 59° | 2 | 0.3 in | 10.0 h/day | 72% |
| November | 71° | 52° | 2 | 0.7 in | 9.3 h/day | 65% |
| December | 65° | 47° | 5 | 2.3 in | 8.1 h/day | 70% |
Long Beach month by month
Long Beach weather in January
January brings highs around 64°F (18°C), lows near 47°F (8°C), about 6 wet days - typically the coldest month and the wettest month of the year in Long Beach.
Long Beach weather in February
February brings highs around 65°F (18°C), lows near 48°F (9°C), about 4 wet days.
Long Beach weather in March
March brings highs around 66°F (19°C), lows near 51°F (10°C), about 6 wet days.
Long Beach weather in April
April brings highs around 70°F (21°C), lows near 54°F (12°C), about 2 wet days.
Long Beach weather in May
May brings highs around 69°F (21°C), lows near 57°F (14°C), about 2 wet days.
Long Beach weather in June
June brings highs around 75°F (24°C), lows near 60°F (16°C), about 0 wet days.
Long Beach weather in July
July brings highs around 79°F (26°C), lows near 64°F (18°C), about 0 wet days - typically the driest month and the sunniest month of the year in Long Beach.
Long Beach weather in August
August brings highs around 80°F (27°C), lows near 65°F (18°C), about 1 wet days - typically the hottest month of the year in Long Beach.
Long Beach weather in September
September brings highs around 80°F (27°C), lows near 64°F (18°C), about 1 wet days.
Long Beach weather in October
October brings highs around 77°F (25°C), lows near 59°F (15°C), about 2 wet days.
Long Beach weather in November
November brings highs around 71°F (22°C), lows near 52°F (11°C), about 2 wet days.
Long Beach weather in December
December brings highs around 65°F (18°C), lows near 47°F (8°C), about 5 wet days.
Seasons in Long Beach
Spring (March through May)
Spring is mild and warm here - highs near 68°F (20°C), nights near 54°F (12°C), and rain comes on about 10 days over the three months. Daylight is generous - around 11.2 hours of sun a day.
Summer (June through August)
Summer settles into easy warmth here - highs near 78°F (26°C), nights near 63°F (17°C), and precipitation is sparse, near 12 mm (0.5 in) for the season. Daylight is generous - around 12.5 hours of sun a day.
Fall (September through November)
Fall in Long Beach is mild and warm, with daytime highs averaging 76°F (24°C) and nights around 58°F (15°C); precipitation is sparse, near 1.6 inches (40 mm) for the season. Daylight is generous - around 10.2 hours of sun a day.
Winter (December through February)
Through winter, Long Beach stays on the cool side of mild: 65°F (18°C) by day, 47°F (8°C) after dark, and rain comes on about 15 days over the three months.
Climate questions, answered
Is Long Beach cold in winter?
How often does it rain in Long Beach?
How much sun does Long Beach get?
How humid does Long Beach get?
What should I pack for Long Beach?
Best time to visit Long Beach
January to June is the sweet spot for Long Beach - temperatures sit either side of the peak heat rather than in it. Expect 68°F (20°C) in the afternoon and around 3 days of rain in a typical month of it. For the same question asked the other way round, see where else is warm in January.
Pack for Long Beach with light layers that can absorb a mild swing through the day. August nights average 65°F (18°C), so evenings rarely match the afternoons.
Long Beach temperature records (2015-2024)
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ.