Weymouth and Portland (Dorset) weather

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Forecast days

Mon 17 Aug

Maximum daytime temperature: 23° Celsius; Minimum nighttime temperature: 18° Celsius;

Sunrise: 06:01

Sunset: 20:26
Sunny.

H UV

L Pollution

L Pollen
Next low tide: 16:08 for
Portland Harbour - Sandsfoot Castle (Beach)
Portland Harbour - Castle Cove (Beach)

1.8 miles

Church Ope Cove (Beach)

2.5 miles

Weymouth - Central (Beach)

2.7 miles
Mon 17 Aug

Maximum daytime temperature: 23 degrees Celsius; Minimum nighttime temperature: 18 degrees Celsius;
Tue 18 Aug

Maximum daytime temperature: 23° Celsius; Minimum nighttime temperature: 17° Celsius;

Sunrise: 06:03

Sunset: 20:24
Overcast changing to sunny intervals by late morning.

H UV

L Pollution

L Pollen
First high tide: 11:10 for
Portland Harbour - Sandsfoot Castle (Beach)
Portland Harbour - Castle Cove (Beach)

1.8 miles

Church Ope Cove (Beach)

2.5 miles

Weymouth - Central (Beach)

2.7 miles
Tue 18 Aug

Maximum daytime temperature: 23 degrees Celsius; Minimum nighttime temperature: 17 degrees Celsius;
Wed 19 Aug

Maximum daytime temperature: 21° Celsius; Minimum nighttime temperature: 17° Celsius;

Sunrise: 06:04

Sunset: 20:22
Sunny intervals changing to partly cloudy by nighttime.

H UV

L Pollution

L Pollen
First high tide: 11:56 for
Portland Harbour - Sandsfoot Castle (Beach)
Portland Harbour - Castle Cove (Beach)

1.8 miles

Church Ope Cove (Beach)

2.5 miles

Weymouth - Central (Beach)

2.7 miles
Wed 19 Aug

Maximum daytime temperature: 21 degrees Celsius; Minimum nighttime temperature: 17 degrees Celsius;
Thu 20 Aug

Maximum daytime temperature: 21° Celsius; Minimum nighttime temperature: 15° Celsius;

Sunrise: 06:06

Sunset: 20:20
Sunny intervals changing to light showers by lunchtime.

H UV

L Pollution

L Pollen
First high tide: 00:24 for
Portland Harbour - Sandsfoot Castle (Beach)
Portland Harbour - Castle Cove (Beach)

1.8 miles

Church Ope Cove (Beach)

2.5 miles

Weymouth - Central (Beach)

2.7 miles
Thu 20 Aug

Maximum daytime temperature: 21 degrees Celsius; Minimum nighttime temperature: 15 degrees Celsius;
Fri 21 Aug

Maximum daytime temperature: 21° Celsius; Minimum nighttime temperature: 14° Celsius;

Sunrise: 06:07

Sunset: 20:18
Sunny intervals changing to partly cloudy by nighttime.

H UV

L Pollution

L Pollen
First high tide: 01:13 for
Portland Harbour - Sandsfoot Castle (Beach)
Portland Harbour - Castle Cove (Beach)

1.8 miles

Church Ope Cove (Beach)

2.5 miles

Weymouth - Central (Beach)

2.7 miles
Fri 21 Aug

Maximum daytime temperature: 21 degrees Celsius; Minimum nighttime temperature: 14 degrees Celsius;
Sat 22 Aug

Maximum daytime temperature: 21° Celsius; Minimum nighttime temperature: 13° Celsius;

Sunrise: 06:09

Sunset: 20:16
Sunny intervals.

H UV

No pollution data.

No pollen data.
First high tide: 02:13 for
Portland Harbour - Sandsfoot Castle (Beach)
Portland Harbour - Castle Cove (Beach)

1.8 miles

Church Ope Cove (Beach)

2.5 miles

Weymouth - Central (Beach)

2.7 miles
Sat 22 Aug

Maximum daytime temperature: 21 degrees Celsius; Minimum nighttime temperature: 13 degrees Celsius;
Sun 23 Aug

Maximum daytime temperature: 21° Celsius; Minimum nighttime temperature: 14° Celsius;

Sunrise: 06:10

Sunset: 20:14
Sunny.

H UV

No pollution data.

No pollen data.
First high tide: 03:23 for
Portland Harbour - Sandsfoot Castle (Beach)
Portland Harbour - Castle Cove (Beach)

1.8 miles

Church Ope Cove (Beach)

2.5 miles

Weymouth - Central (Beach)

2.7 miles
Sun 23 Aug

Maximum daytime temperature: 21 degrees Celsius; Minimum nighttime temperature: 14 degrees Celsius;

Sunny.

Sunrise: 06:01

Sunset: 20:26

H UV

L Pollution

L Pollen

Next low tide: 16:08 for

Portland Harbour - Sandsfoot Castle (Beach)

7 day forecast for Weymouth and Portland

Today (17 August 2026)

Time	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Weather symbols
Chance of precipitation	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%
Temperature (°C)	23°	23°	23°	23°	22°	22°	21°	19°	19°
Feels like temperature (°C)	22°	22°	22°	21°	21°	19°	19°	17°	17°
Wind direction and speed (mph)	WSW 11	WSW 11	WSW 11	WSW 11	W 11	WNW 11	WNW 11	WNW 11	WNW 11
Wind gust (mph)	21	23	23	23	21	21	21	21	22
Visibility (description)	VG	VG	VG	VG	VG	VG	VG	VG	VG
Humidity	66%	65%	67%	69%	67%	59%	63%	66%	75%
UV	5	3	2	1	1	1	-	-	-

Tuesday (18 August 2026)

Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Weather symbols
Chance of precipitation	<5%	<5%	<5%	<5%	<5%	<5%	10%	20%	20%	30%	20%	10%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	10%	10%	30%
Temperature (°C)	18°	18°	18°	18°	18°	18°	18°	19°	19°	20°	20°	21°	22°	22°	23°	23°	23°	23°	23°	22°	21°	20°	19°	19°
Feels like temperature (°C)	16°	16°	17°	16°	16°	16°	16°	17°	17°	18°	19°	19°	20°	20°	20°	21°	20°	20°	20°	19°	18°	17°	17°	16°
Wind direction and speed (mph)	WNW 11	WNW 11	W 11	W 13	W 14	W 14	W 13	W 13	W 13	W 13	WSW 14	WSW 14	WSW 14	WSW 14	WSW 15	WSW 15	WSW 16	WSW 16	WSW 15	W 15	WNW 13	WNW 13	WNW 13	WNW 13
Wind gust (mph)	20	20	21	21	21	21	22	23	24	24	24	24	25	25	25	27	27	27	26	24	23	22	21	21
Visibility (description)	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	E	E	E	E	E	E	E	VG	VG	VG
Humidity	75%	77%	83%	84%	84%	85%	85%	85%	85%	85%	85%	84%	79%	75%	70%	68%	67%	66%	63%	58%	57%	63%	65%	67%
UV	-	-	-	-	-	-	1	1	1	2	3	3	5	5	6	5	3	2	1	1	1	-	-	-

Wednesday (19 August 2026)

Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Weather symbols
Chance of precipitation	40%	50%	50%	60%	50%	50%	30%	20%	20%	10%	10%	20%	30%	30%	20%	20%	20%	10%	10%	10%	10%	10%	<5%	<5%
Temperature (°C)	19°	18°	18°	18°	18°	18°	17°	18°	18°	19°	19°	20°	21°	21°	21°	21°	21°	21°	21°	20°	20°	19°	19°	19°
Feels like temperature (°C)	17°	17°	17°	16°	16°	16°	16°	16°	16°	17°	18°	18°	19°	19°	18°	18°	18°	18°	17°	17°	17°	16°	16°	16°
Wind direction and speed (mph)	WNW 11	W 11	W 10	W 11	W 10	W 11	W 11	W 11	W 11	W 11	W 11	W 11	WSW 11	WSW 11	WSW 13	WSW 14	WSW 15	WSW 15	WSW 16	W 14	W 14	W 14	W 14	W 14
Wind gust (mph)	21	21	21	21	21	22	21	21	21	21	21	22	25	27	26	28	30	30	29	29	28	28	27	27
Visibility (description)	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	E	E	E	E	E	E	E	E	E	E	E	E	VG	VG
Humidity	72%	76%	77%	81%	83%	83%	83%	81%	76%	74%	69%	66%	65%	65%	65%	65%	64%	63%	59%	58%	60%	61%	59%	62%
UV	-	-	-	-	-	-	1	1	1	3	4	5	6	6	6	5	3	2	1	1	1	-	-	-

Thursday (20 August 2026)

Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Weather symbols
Chance of precipitation	10%	10%	10%	20%	20%	30%	30%	30%	30%	30%	30%	40%	50%	60%	60%	40%	40%	30%	30%	30%	30%	20%	20%	20%
Temperature (°C)	18°	18°	18°	18°	17°	17°	17°	17°	18°	18°	19°	20°	20°	20°	20°	20°	20°	20°	20°	20°	19°	18°	17°	17°
Feels like temperature (°C)	15°	15°	15°	15°	15°	16°	15°	15°	16°	16°	17°	17°	18°	18°	18°	18°	18°	18°	18°	17°	17°	16°	16°	15°
Wind direction and speed (mph)	WSW 14	WSW 14	WSW 13	WSW 13	WSW 13	WSW 11	WSW 11	WSW 11	W 11	W 11	W 11	WSW 11	WSW 11	WSW 11	WSW 12	WSW 13	WSW 11	W 11	W 11	W 11	WNW 11	NW 10	NW 10	NW 11
Wind gust (mph)	27	26	26	25	25	25	25	24	23	22	22	23	24	25	25	25	24	25	26	25	24	23	22	21
Visibility (description)	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	E	E	E	E	E	E	E	E	E	E	VG	VG	VG	VG
Humidity	65%	67%	69%	70%	72%	74%	75%	75%	72%	70%	68%	65%	63%	65%	65%	65%	63%	62%	62%	62%	64%	67%	73%	75%
UV	-	-	-	-	-	-	1	1	1	3	4	6	7	6	6	4	3	2	1	1	1	-	-	-

Friday (21 August 2026)

Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Weather symbols
Chance of precipitation	10%	10%	10%	10%	10%	10%	20%	20%	20%	10%	10%	10%	20%	30%	30%	30%	40%	40%	40%	40%	40%	40%	40%	40%
Temperature (°C)	17°	17°	16°	16°	15°	15°	15°	15°	16°	17°	18°	19°	20°	20°	20°	20°	20°	20°	20°	19°	18°	18°	17°	16°
Feels like temperature (°C)	15°	15°	14°	14°	14°	14°	14°	14°	14°	15°	17°	18°	18°	19°	19°	19°	19°	18°	18°	18°	17°	17°	16°	15°
Wind direction and speed (mph)	NW 11	NW 11	NW 10	NW 9	NW 9	NNW 9	NNW 8	NNW 8	N 8	N 8	N 7	N 7	NNW 7	NW 7	WNW 7	W 7	W 7	W 8	W 8	NW 7	NNW 8	NNW 7	N 7	N 7
Wind gust (mph)	21	20	20	19	18	17	17	17	17	16	15	15	15	16	16	16	17	17	17	17	18	17	18	17
Visibility (description)	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	E	E	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG
Humidity	75%	75%	76%	78%	80%	82%	83%	80%	75%	68%	62%	56%	54%	54%	52%	52%	54%	56%	58%	59%	65%	69%	73%	74%
UV	-	-	-	-	-	-	1	1	1	3	4	5	6	6	6	4	3	2	1	1	1	-	-	-

Saturday (22 August 2026)

Time	00:00	01:00	04:00	07:00	10:00	13:00	16:00	19:00	22:00
Weather symbols
Chance of precipitation	40%	20%	20%	10%	10%	20%	10%	10%	10%
Temperature (°C)	16°	15°	15°	14°	17°	20°	20°	19°	16°
Feels like temperature (°C)	15°	14°	13°	13°	15°	18°	18°	17°	15°
Wind direction and speed (mph)	NNE 7	NNE 8	NNE 9	NNE 9	NE 9	NE 8	NE 7	NNE 7	NNE 5
Wind gust (mph)	17	16	16	19	20	19	18	13	11
Visibility (description)	VG	VG	G	G	VG	VG	VG	VG	VG
Humidity	77%	78%	84%	84%	61%	46%	44%	45%	69%
UV	-	-	-	1	4	6	3	1	-

Sunday (23 August 2026)

Time	01:00	04:00	07:00	10:00	13:00	16:00	19:00	22:00
Weather symbols
Chance of precipitation	10%	10%	10%	<5%	<5%	<5%	10%	10%
Temperature (°C)	14°	13°	13°	17°	21°	21°	20°	17°
Feels like temperature (°C)	13°	12°	12°	15°	18°	18°	18°	16°
Wind direction and speed (mph)	NE 8	NE 8	NE 8	NE 9	E 9	ESE 8	E 8	NNE 7
Wind gust (mph)	11	10	16	19	18	17	13	11
Visibility (description)	VG	VG	VG	VG	VG	VG	VG	VG
Humidity	75%	81%	80%	58%	41%	40%	43%	65%
UV	-	-	1	4	6	3	1	-

UK video forecast

Weymouth and Portland weather map

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South West England weather forecast

Headline:

Brightening up, with hazy sunshine for many. Rain possible overnight.

Today:

Low cloud, with showery outbreaks of rain and drizzle clearing to brighter skies during the morning, with plenty of hazy spells of sunshine developing for the afternoon. Feeling warm and rather muggy, with light winds. Maximum temperature 25 °C.

Tonight:

A fine evening to come. Cloud increasing overnight from the north, with the promise of some rain moving in during the early hours, which may be heavy in places. Minimum temperature 15 °C.

Tuesday:

A cloudy and wet start to the day as rain slowly clears southwards during the morning. Drier and brighter for the afternoon, with hazy spells of sunshine for many. Maximum temperature 24 °C.

Outlook for Wednesday to Friday:

Sunny spells and showers expected throughout this period. Some of the showers will be heavy and times, with the risk of hail and thunder. A fresh feel for all.

Updated: 04:00 (UTC+1) on Mon 17 Aug 2026

UK long range weather forecast

This period is likely to start largely dry and settled across the UK, as a ridge of high pressure sets in. A few showers are likely in the far north and possibly the far southeast though. Conditions look like turning increasingly unsettled through next week, as low pressure gradually becomes dominant, squeezing the ridge off to the northeast and southwest. Most places are likely to see some rain or showers, which may be heavy with a risk of thunder at times. It may become breezy if not windy at times too. Temperatures are likely to be near or a little below normal overall, with some chilly nights at first, but brief warm, humid spells are possible at times, especially in the south.

Updated: 13:00 (UTC+1) on Mon 17 Aug 2026

As we move into the start of meteorological autumn, signals for the prevailing weather patterns affecting the UK are weak, thus something close to the climatological norm is most likely. This means a broad northwest-southeast split in conditions, with higher pressure becoming centred close to the south of the UK and lower pressure towards the north and northwest. The north and northwest will probably see the lion's share of the rain and any strong winds, whilst the south and southeast will probably see the driest and sunniest weather. Temperatures are likely to be above average overall. There is a chance that late season hot spells or heatwaves develop, especially in the south.

Updated: 14:00 (UTC+1) on Mon 17 Aug 2026

Weymouth and Portland (Dorset) weather

Find a forecast

Forecast days

Mon 17 Aug

Mon 17 Aug

Tue 18 Aug

Tue 18 Aug

Wed 19 Aug

Wed 19 Aug

Thu 20 Aug

Thu 20 Aug

Fri 21 Aug

Fri 21 Aug

Sat 22 Aug

Sat 22 Aug

Sun 23 Aug

Sun 23 Aug

7 day forecast for Weymouth and Portland

Tooltip header

UK video forecast

South West England weather forecast

Headline:

Today:

Tonight:

Tuesday:

Outlook for Wednesday to Friday:

UK long range weather forecast

Nearest forecasts

Weymouth and Portland (Dorset) weather

Find a forecast

Forecast days

Mon 17 Aug

Mon 17 Aug

Tue 18 Aug

Tue 18 Aug

Wed 19 Aug

Wed 19 Aug

Thu 20 Aug

Thu 20 Aug

Fri 21 Aug

Fri 21 Aug

Sat 22 Aug

Sat 22 Aug

Sun 23 Aug

Sun 23 Aug

7 day forecast for Weymouth and Portland

UK video forecast

South West England weather forecast

Monday 17 Aug - Friday 21 Aug

Headline:

Today:

Tonight:

Tuesday:

Outlook for Wednesday to Friday:

UK long range weather forecast

Saturday 22 Aug - Monday 31 Aug

Tuesday 1 Sep - Tuesday 15 Sep

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