As of 20:28 BST

Weather in Portchester

+21°Weather now

Portchester, Saturday, 8 August, 20:28

Overcast. Feels like 21°C. High 27°C, low 11°C.

Pressure1016 mb
Wind3 mph E
Humidity54%
Visibility6.2 mi
Dew point11°C
Sun, 09+14 ° /29 °0Partly cloudy
+29 °Partly cloudy

Portchester, Sunday, 9 August

Partly cloudy. High 29°C, low 14°C.

Pressure1013 mb
Wind4 mph SW
Humidity31%
Visibility6.2 mi
Dew point7°C
Mon, 10+11 ° /27 °0Overcast
+27 °Overcast

Portchester, Monday, 10 August

Overcast. High 27°C, low 11°C.

Pressure1020 mb
Wind8 mph N
Humidity51%
Visibility6.2 mi
Dew point13°C
Tue, 11+16 ° /24 °0Clear sky
+24 °Clear sky

Portchester, Tuesday, 11 August

Clear sky. High 24°C, low 16°C.

Pressure1024 mb
Wind16 mph E
Humidity46%
Visibility6.2 mi
Dew point9°C
Wed, 12+17 ° /27 °0Partly cloudy
+27 °Partly cloudy

Portchester, Wednesday, 12 August

Partly cloudy. High 27°C, low 17°C.

Pressure1022 mb
Wind15 mph SE
Humidity41%
Visibility6.2 mi
Dew point9°C
Thu, 13+20 ° /29 °0Clear sky
+29 °Clear sky

Portchester, Thursday, 13 August

Clear sky. High 29°C, low 20°C.

Pressure1019 mb
Wind13 mph SE
Humidity38%
Visibility—
Dew point11°C
Fri, 14+18 ° /29 °0Overcast
+29 °Overcast

Portchester, Friday, 14 August

Overcast. High 29°C, low 18°C.

Pressure1016 mb
Wind17 mph SW
Humidity43%
Visibility—
Dew point13°C
Sat, 15+17 ° /27 °0Partly cloudy
+27 °Partly cloudy

Portchester, Saturday, 15 August

Partly cloudy. High 27°C, low 17°C.

Pressure1014 mb
Wind14 mph SW
Humidity46%
Visibility—
Dew point13°C
Sun, 16+17 ° /23 °1.3Light rain
+23 °Light rain

Portchester, Sunday, 16 August

Light rain. High 23°C, low 17°C.

Pressure1017 mb
Wind9 mph NE
Humidity58%
Visibility—
Dew point13°C
Mon, 17+17 ° /19 °0.6Light rain
+19 °Light rain

Portchester, Monday, 17 August

Light rain. High 19°C, low 17°C.

Pressure1015 mb
Wind18 mph SW
Humidity72%
Visibility—
Dew point14°C
Tue, 18+16 ° /25 °0Clear sky
+25 °Clear sky

Portchester, Tuesday, 18 August

Clear sky. High 25°C, low 16°C.

Pressure1013 mb
Wind18 mph W
Humidity41%
Visibility—
Dew point10°C
Wed, 19+13 ° /21 °0Partly cloudy
+21 °Partly cloudy

Portchester, Wednesday, 19 August

Partly cloudy. High 21°C, low 13°C.

Pressure1015 mb
Wind16 mph SW
Humidity40%
Visibility—
Dew point6°C
Thu, 20+15 ° /23 °1.2Light rain
+23 °Light rain

Portchester, Thursday, 20 August

Light rain. High 23°C, low 15°C.

Pressure1007 mb
Wind20 mph SW
Humidity69%
Visibility—
Dew point15°C
Fri, 21+13 ° /23 °0Mainly clear
+23 °Mainly clear

Portchester, Friday, 21 August

Mainly clear. High 23°C, low 13°C.

Pressure1013 mb
Wind17 mph NW
Humidity43%
Visibility—
Dew point7°C
Sat, 22+14 ° /22 °0Overcast
+22 °Overcast

Portchester, Saturday, 22 August

Overcast. High 22°C, low 14°C.

Pressure1015 mb
Wind24 mph W
Humidity49%
Visibility—
Dew point10°C
Sun, 23+12 ° /23 °0Overcast
+23 °Overcast

Portchester, Sunday, 23 August

Overcast. High 23°C, low 12°C.

Pressure1021 mb
Wind18 mph NW
Humidity38%
Visibility—
Dew point5°C

Questions about the month ahead

How accurate is a month-long forecast?

The first 16 days come from weather models — highly reliable for the first 3–5 days, gradually less so after that. Days 17 to 30 for Portchester are built from climate averages over the last 60 years, so they show typical weather for those dates rather than a specific forecast.

What does "above average" mean?

We compare the forecast with the climate average for exactly the same calendar days, calculated from 60 years of observations. The difference shows how the coming month compares with a typical one.

Where do the 66-year records come from?

These are real historical extremes recorded in Portchester since 1960: the highest and lowest temperature for each calendar date, with the year it happened.

How often is the 30-day forecast updated?

The forecast portion refreshes every hour. The climate portion is based on long-term data and stays stable.