How warm is it in San Francisco in June?

Daytime highs averaged 22.1 °C, night-time lows 11.6 °C. The highest value of the past 10 years was 33.9 °C (21 Jun 2022), the lowest 9.0 °C (20 Jun 2023).

How often does it rain in San Francisco in June?

On average there were 0.4 rain days (at least 1 mm) with 2.0 mm of precipitation in total. In 8 of 10 years there was no rain day at all.

How warm is the sea in San Francisco in June?

The sea temperature averaged 14.3 °C (open-sea point approx. 6 km from the town).

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San Francisco weather in June: temperature & rain

Photo: King of Hearts · CC BY-SA 3.0

🇺🇸 Weather in San Francisco in June

This is what the weather in San Francisco (California, USA) was like in June over the years 2017–2026.

Key facts at a glance

Prevailing weather: Partly cloudy

Avg. daytime high

22.1 °C

19.3 °C – 23.5 °C

Avg. night-time low

11.6 °C

10.9 °C – 12.4 °C

Avg. rain days in period

0.4

1 % of days · ≥ 1.0 mm

Avg. precipitation in period

2.0 mm

0.5 mm – 5.8 mm

Avg. cloud cover

46 %

This data source has no sunshine hours – average cloud cover is shown instead.

Avg. sea temperature

14.3 °C

Sea temperature available for 3 of 10 years.

Extremes: Highest temperature 33.9 °C (21 Jun 2022) · Lowest temperature 9.0 °C (20 Jun 2023) · Avg. daily peak wind 20 km/h

Weather mix of all days

97Sunny
134Partly cloudy
65Cloudy
4Light rain

Summary

On average 22.1 °C during the day and 11.6 °C at night.
On average 0.4 rain days (Rain day = at least 1.0 mm of precipitation) with 2.0 mm of precipitation in total.
In 8 of 10 years there was not a single rain day.
The sea averaged 14.3 °C.
Prevailing weather: Partly cloudy.
Warmest year: 2020 (avg. 23.5 °C), coolest: 2023 (avg. 19.3 °C).
Wettest year: 2022 (5.8 mm), driest: 2019 (0.5 mm).
Extremes: 33.9 °C on 21 Jun 2022 and 9.0 °C on 20 Jun 2023.

Overall values from all 10 years. How is this calculated?

Temperatures per year

Average over your travel period

Precipitation & rain days

Year by year

2026
Avg. max22.6°Avg. min11.6°
Rain days
0 Rain days
Precipitation
2.3 mm
Avg. cloud cover
51 % cloudy
Sea temperature
14.4 °C
Max 32.0 °C · Min 9.2 °C
2025
Avg. max20.9°Avg. min10.9°
Rain days
0 Rain days
Precipitation
0.7 mm
Avg. cloud cover
48 % cloudy
Sea temperature
13.4 °C
Max 24.8 °C · Min 9.9 °C
2024
Avg. max22.7°Avg. min11.3°
Rain days
0 Rain days
Precipitation
0.9 mm
Avg. cloud cover
38 % cloudy
Sea temperature
15.0 °C
Max 28.4 °C · Min 10.0 °C
2023
Avg. max19.3°Avg. min11.0°
Rain days
0 Rain days
Precipitation
1.1 mm
Avg. cloud cover
66 % cloudy
Sea temperature
–
Max 24.8 °C · Min 9.0 °C
2022
Avg. max23.1°Avg. min12.3°
Rain days
2 Rain days
Precipitation
5.8 mm
Avg. cloud cover
42 % cloudy
Sea temperature
–
Max 33.9 °C · Min 10.1 °C
2021
Avg. max22.3°Avg. min11.8°
Rain days
0 Rain days
Precipitation
0.6 mm
Avg. cloud cover
42 % cloudy
Sea temperature
–
Max 29.4 °C · Min 9.5 °C
2020
Avg. max23.5°Avg. min12.4°
Rain days
0 Rain days
Precipitation
1.7 mm
Avg. cloud cover
35 % cloudy
Sea temperature
–
Max 29.9 °C · Min 10.1 °C
2019
Avg. max22.9°Avg. min12.2°
Rain days
0 Rain days
Precipitation
0.5 mm
Avg. cloud cover
53 % cloudy
Sea temperature
–
Max 32.9 °C · Min 9.2 °C
2018
Avg. max22.5°Avg. min11.4°
Rain days
0 Rain days
Precipitation
0.9 mm
Avg. cloud cover
38 % cloudy
Sea temperature
–
Max 31.4 °C · Min 9.0 °C
2017
Avg. max21.3°Avg. min11.5°
Rain days
2 Rain days
Precipitation
5.1 mm
Avg. cloud cover
44 % cloudy
Sea temperature
–
Max 32.0 °C · Min 9.1 °C

Frequently asked questions

How warm is it in San Francisco in June?: Daytime highs averaged 22.1 °C, night-time lows 11.6 °C. The highest value of the past 10 years was 33.9 °C (21 Jun 2022), the lowest 9.0 °C (20 Jun 2023).
How often does it rain in San Francisco in June?: On average there were 0.4 rain days (at least 1 mm) with 2.0 mm of precipitation in total. In 8 of 10 years there was no rain day at all.
How warm is the sea in San Francisco in June?: The sea temperature averaged 14.3 °C (open-sea point approx. 6 km from the town).

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Data sources

Weather data: Data obtained from the NASA Langley Research Center (LaRC) POWER Project funded through the NASA Earth Science/Applied Science Program
Reanalysis (weather model constrained by observations) on a coarse grid of about 50 km. Values represent a large area and can differ from local conditions, especially on islands, coasts and in mountains. Snow depth is the model value for the grid cell, not the depth on the slopes. No sunshine duration.
Reanalysis (weather model constrained by observations)
Reanalysis values represent a grid cell (approx. 25–50 km) and may differ from local measurements on coasts, islands and in mountains.
Sea temperature: MUR SST data were provided by JPL under support by NASA MEaSUREs program; accessed via NOAA CoastWatch ERDDAP
Daily multi-scale ultra-high resolution (≈ 1 km) analysis of satellite measurements (infrared, microwave) and in-situ data. Represents the foundation temperature below the daily warm surface layer. (Satellite and in-situ analysis); Sea measuring point approx. 6 km from the location (37.830, -122.450)
Place search: Natural Earth (public domain) · GeoNames (CC BY 4.0) / OpenStreetMap (ODbL)