San Francisco Weather

2026 (This Year)

Average Temperature
18.1 °C
High
/
10.8 °C
Low
335.3mm
Rain Volume
31.1°C
Peak Temp
5.2°C
Low Temp
176
Days Count

Temperature Trends

Daily high, low, and average

Weather Extremes

Most notable conditions during this period

Period High

31.1°C
Tuesday, March 17
avg daily high: 18.1°C

Coolest Day

10.1°C
Wednesday, February 18
avg daily high: 18.1°C

Period Low

5.2°C
Friday, February 20
avg night low: 10.8°C
Progress 0%
0 / 0 years
Analyzing Historical Data

Analyzing 15 years of historical data...

Analysis Period

Years: 15
Location: San Francisco
Period: 2026-01-01 to 2026-06-25

Weather Insights

Key findings from analysis for selected period

Highly Variable Temperatures

Worth noting

Temperature swings from 5.2°C to 31.1°C (25.9°C range).

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Seasonal Weather Patterns

Info
Rainfall Patterns:
Wettest: April (118mm), February (112mm)
Driest: June (1mm), March (9mm)

Temperature Patterns (Monthly Averages):
Hottest months: March (22.5°C), June (19.0°C)
Coolest months: January (15.0°C), February (16.2°C)

Travel Recommendations:
Best visiting months: March, June, May (optimal temperature and rainfall balance).
⚠️

3 Exceptional Weather Events

Info

The most extreme days in this period:

Mar 17 Heat

Hottest day: 31.1°C

Feb 16 Rain

Heavy rain: 30.2mm in one day

Apr 20 Rain

Heavy rain: 43.0mm in one day

1 High Heat Index Day

Info

1 day where humidity amplified heat sensation (35.1°C heat index). 31.1°C temperature felt like 35.1°C due to 60% humidity.

High Humidity Levels

Info

Average humidity of 75% indicates persistently moist air conditions. Heat sensation amplified during warm periods (18.1°C average temperature). Humidity varied significantly (22%-95% range).

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Highly Variable Humidity

Info

Large humidity swings (22%-95%) for a year. Conditions ranged from very dry to very humid.

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Global Weather Data

Features

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  • City comparisons
  • Interactive charts
  • Climate analysis
  • Weather trends

Data Source

Weather data provided by Open-Meteo, offering reliable historical weather information from meteorological stations worldwide.

Data accuracy and availability may vary by location and time period.

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