Portslade in Fall
In fall (September, October and November), Portslade sees average daytime highs around 15°C and overnight lows near 12°C, with 291 mm of rain over about 40 wet days across the season. It is the 2nd-warmest season and the wettest season of the year.
Over the season highs ease from about 18°C in early September to 10°C by late November. The sky is clear or mostly clear about 20% of the time across fall, and the air most often feels dry.
Fall is Portslade's 2nd-best season to visit on our travel score. For the whole year in context, see Portslade's year-round climate.
- Avg daytime high
- 15°C
- 2nd-warmest season
- Avg overnight low
- 12°C
- Rainfall
- 291 mm
- 40 wet days
- Avg wind
- 26 km/h
- Travel score
- 4.0
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in Portslade in Fall
Over the season highs ease from about 18°C in early September to 10°C by late November.
A typical fall day in Portslade reaches about 15°C and drops to 12°C overnight. The warmest of the three months is September, the coolest November.
Portslade weather by month
How the three fall months (September, October and November) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 8° / 6° | 90 | 14.1 | 0.5 | 8.2 | 1.3 |
| Feb | 8° / 5° | 63 | 11.1 | 0.5 | 9.7 | 1.2 |
| Mar | 9° / 6° | 50 | 9.9 | 0.3 | 11.5 | 1.7 |
| Apr | 10° / 8° | 48 | 9.3 | 0 | 13.5 | 2.5 |
| May | 13° / 10° | 46 | 8.5 | 0 | 15.2 | 3.6 |
| Jun | 15° / 13° | 47 | 8.5 | 0 | 16.2 | 4.8 |
| Jul | 17° / 15° | 49 | 8.8 | 0 | 15.8 | 5.9 |
| Aug | 18° / 16° | 62 | 9.3 | 0 | 14.3 | 6.1 |
| Sep | 17° / 15° | 67 | 10.7 | 0 | 12.4 | 5.4 |
| Oct | 15° / 12° | 108 | 13.9 | 0 | 10.4 | 4.0 |
| Nov | 12° / 9° | 116 | 15.4 | 0 | 8.7 | 2.6 |
| Dec | 9° / 7° | 103 | 14.1 | 0.3 | 7.8 | 1.8 |
Cloud cover in Fall
The sky is clear or mostly clear about 20% of the time across fall.
Chance of precipitation in Fall
Portslade gets around 291 mm of rain over 40 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 26 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 13 h 24 min in early September to 8 h 06 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 2.1 kWh/m².
Is fall a good time to visit Portslade?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is a reasonable time to visit Portslade for sightseeing.
What to pack for Portslade in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Portslade sees daytime highs around 15°C and nights near 12°C. Pack a warm layer, rain gear and a windbreaker. About 40 days see rain.
Sea temperature near Portslade in Fall
The nearest coast averages about 16°C across fall — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 25 km away) is warmest in September at about 17°C and coldest in March near 8°C.
The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 10 | 9 | 8 | 9 | 11 | 13 | 16 | 17 | 17 | 16 | 14 | 12 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Cool | Cool | Cool | Bracing | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 10 | Bracing |
| Feb | 9 | Bracing |
| Mar | 8 | Bracing |
| Apr | 9 | Bracing |
| May | 11 | Bracing |
| Jun | 13 | Bracing |
| Jul | 16 | Cool |
| Aug | 17 | Cool |
| Sep | 17 | Cool |
| Oct | 16 | Cool |
| Nov | 14 | Bracing |
| Dec | 12 | Bracing |
UV index in Portslade in Fall
Clear-sky midday UV across fall averages around 3. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Portslade peaks around August 10 at about 6 (high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near January 1 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 6 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 1 | 3 | 4 | 6 | 6 | 6 | 6 | 4 | 2 | 1 | 1 |
| Level | Low | Low | Moderate | Moderate | High | High | High | High | Moderate | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 1 | Low |
| Mar | 3 | Moderate |
| Apr | 4 | Moderate |
| May | 6 | High |
| Jun | 6 | High |
| Jul | 6 | High |
| Aug | 6 | High |
| Sep | 4 | Moderate |
| Oct | 2 | Moderate |
| Nov | 1 | Low |
| Dec | 1 | Low |
Where is Portslade?
Portslade sits at 50.8°N, 0.2°W, 40 m above sea level, in United Kingdom. The nearest listed city is Hove, 4.0 km away.
Topography around Portslade
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Portslade.
Within 3 km, the terrain around Portslade has only modest variations in elevation — a maximum elevation change of 146 m around an average of 44 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 247 m; within 80 km, significant variations in elevation — a maximum elevation change of 301 m.
The land around Portslade is covered by artificial surfaces (34%) and grassland (24%) within 3 km, water (38%) and grassland (31%) within 16 km, and water (34%), grassland (24%) and trees (23%) within 80 km.
United Kingdom travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type D / G / M
- 230 V · 50 Hz
- Prices
- ≈ 89% of US
- price level, 2025
- GDP per capita
- $57,602
- 2025
- Happiness
- 6.7 / 10
- World Happiness, 2025
- Safe drinking water
- 100%
- of population, 2024
- Homicide rate
- 1.1
- per 100k, 2021
- Road deaths
- 3.2
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Portslade (50.8429°, -0.2161°, elevation 40 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.