🇬🇬 Weather in Saint Peter Port
Map Overlays:
Hourly Forecast for Saint Peter Port
18:00
21°
8%
19:00
21°
7%
20:00
21°
7%
21:00
20°
7%
22:00
20°
7%
23:00
19°
8%
00:00
18°
8%
01:00
18°
9%
02:00
18°
10%
03:00
18°
11%
04:00
17°
13%
05:00
17°
12%
06:00
17°
12%
07:00
17°
13%
08:00
17°
12%
09:00
18°
12%
10:00
18°
11%
11:00
18°
12%
12:00
18°
11%
13:00
18°
11%
14:00
18°
12%
15:00
19°
12%
16:00
19°
15%
17:00
20°
14%
14-Day Forecast for Saint Peter Port
2026-07-12
Sunny
21° /
18°
2026-07-13
Sunny
20° /
17°
2026-07-14
Sunny
22° /
17°
2026-07-15
Patchy rain nearby
20° /
18°
2026-07-16
Sunny
19° /
18°
2026-07-17
Partly Cloudy
19° /
17°
2026-07-18
Partly Cloudy
18° /
17°
Additional Forecasts for Saint Peter Port
Air Quality
💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 137.0 μg/m³
O₃ (Ozone) 122.0 μg/m³
NO₂ (Nitrogen Dioxide) 2.1 μg/m³
SO₂ (Sulphur Dioxide) 0.5 μg/m³
PM2.5 (Fine particles) 12.4 μg/m³
PM10 (Coarse particles) 29.7 μg/m³
Historical Weather
Weather Forecasts for Other Cities in Guernsey
Weather in Saint Peter Port — FAQ
Answers refreshed each request based on current conditions in Saint Peter Port.
What is the weather like right now in Saint Peter Port?
Right now in Saint Peter Port, Guernsey the temperature is 23.4°C (feels like 25.4°C), with sunny. Relative humidity is 61% and wind is 45.0 km/h.
What is today's high and low temperature in Saint Peter Port?
Today's forecast high in Saint Peter Port is 21.4°C and the overnight low is 17.5°C. The diurnal range — high minus low — depends on cloud cover; clear days swing more than overcast ones.
Will it rain in Saint Peter Port today?
The chance of precipitation in Saint Peter Port today is 25%. Forecast accuracy is highest within the next 6 hours and decreases steadily out to 14 days.
How often does the weather here update?
Current observations refresh every 15-60 minutes from the nearest monitoring stations operated by national meteorological agencies. The hourly forecast updates approximately every hour; the 7- and 14-day outlook is recomputed several times per day.
What does 'feels like' temperature mean?
Feels-like (apparent) temperature accounts for humidity, wind chill and direct sunshine — variables that change how the human body perceives heat or cold. On hot, humid days it can be 3-7°C above the actual reading; on cold windy days it can be 5-15°C below.
Why does the temperature in Saint Peter Port differ from nearby cities?
Even short distances can change temperatures noticeably. Saint Peter Port's reading reflects altitude, proximity to large bodies of water, urban heat island effects, and the exact location of the monitoring stations supplying the data. Coastal cities are typically milder and more humid than inland equivalents.