Monthly climate averages for Pacifica, United States. Based on 10-year ERA5 reanalysis data.
Csb Warm-Summer Mediterranean
Climate OverviewPacifica, United States in August has warm conditions, with highs averaging 20.9°C (70°F). Rain is rare, falling on about 0 days this month. Sea temperature stays cool at 15.1°C (59°F).
This month falls at the end of Summer.
Temperatures remain fairly steady throughout August, with daily highs around 21°C (70°F).
Expect around 12.5h of sunshine at the start of August, decreasing to 12.0h by the end.
The warmest days tend to fall around the 16th, averaging 21.6°C (71°F).
Daily averages based on historical data (2016–2025)
Daytime temperatures around 21°C (70°F) are ideal for full-day outdoor exploration.
Rain is uncommon in this month, so most days stay dry from morning through evening.
Recent yearly records for August have stayed close to the long-run average.
| Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 14°C / 8°C | 13°C / 6°C | 10days (112 mm) Wet | 6.9h Fair | 84% Humid | 2.9 Moderate | Fair | View Details |
| February | 15°C / 8°C | 13°C / 6°C | 7days (90 mm) Good | 8.5h Good | 79% Humid | 3.9 Moderate | Fair | View Details |
| March | 15°C / 9°C | 14°C / 7°C | 12days (99 mm) Wet | 9.4h Good | 80% Humid | 5.5 High | Good | View Details |
| April | 16°C / 10°C | 16°C / 8°C | 5days (30 mm) Good | 11h Excellent | 78% Humid | 6.9 High | Good | View Details |
| May | 18°C / 11°C | 18°C / 10°C | 3days (18 mm) Excellent | 12.5h Excellent | 77% Humid | 7.9 Very High | Good | View Details |
| June | 20°C / 12°C | 20°C / 11°C | 0days (1 mm) Excellent | 13.3h Excellent | 76% Humid | 8.1 Very High | Excellent | View Details |
| July | 20°C / 13°C | 21°C / 12°C | 0days (0 mm) Excellent | 13.1h Excellent | 80% Humid | 8.1 Very High | Excellent | View Details |
| August best | 21°C / 14°C | 22°C / 14°C | 0days (1 mm) Excellent | 12.4h Excellent | 80% Humid | 7.6 Very High | Excellent | View Details |
| September best | 22°C / 14°C | 22°C / 14°C | 1days (3 mm) Excellent | 11.3h Excellent | 79% Humid | 6.4 High | Excellent | View Details |
| October best | 21°C / 13°C | 20°C / 12°C | 2days (24 mm) Excellent | 9.6h Good | 75% Muggy | 5 Moderate | Excellent | View Details |
| November | 17°C / 10°C | 16°C / 9°C | 6days (54 mm) Good | 8.1h Good | 80% Humid | 3.4 Moderate | Good | View Details |
| December | 14°C / 8°C | 13°C / 6°C | 9days (98 mm) Wet | 6.7h Fair | 83% Humid | 2.7 Moderate | Fair | View Details |
Dress in layers — a mix of long sleeves, light sweaters, and a versatile jacket works best for changeable conditions.
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