Forecast #GE2019 – 17th October 2019


This is our latest forecast for a potential November or December 2019 General Election in the UK. As the Brexit process appears to near a conclusion, we are coming back from our pause during the period when an election became less likely, to resume our forecasts.

The forecast below is our standard forecast. It is based on a General Election occuring on the day of the forecast.

What does your forecast show? – We try to give as much information as possible, but only where it is statistically significant. We show a confidence interval on the seats and vote shares for the major parties.

What do you use for your forecast? – We use all the latest polling data, where available. We also look at the betting markets and other information to help guide our forecast. We calculate the interaction between the support for the parties on as local a level as statistically possible and then use this to run a Monte Carlo simulation of the election.

What has changed since the last forecast? – New polls from ComRes poll and Opinium have been included.

What do you predict will happen in Seat X? What is the probability of Party Y having more votes than Z? – As we approach the election we reduce uncertainity in our model and are able to answer questions like this. Whilst we do not automatically publish a prediction for each seat, we can indicate a most likely outcome if required and also probabilities of victory for each candidate.

I want to ask a question / get in touch – Write a comment below to get in touch.

Key Features

The overall summary of our forecast is “Conservative Victory”.

Recent polling (including large sample polling in Wales and Scotland) indicates a resurgent Conservative Party as the Liberal Democrats fall back from their previous highs.

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Our forecast shows a large Conservative lead over Labour, both in votes and seats. We see evidence of votes moving from the Brexit Party to the Conservatives as Leave electors consolidate around Boris Johnson.

In Scotland we expect the SNP to regain almost all their losses in 2017 to Labour and the Conservatives.

The Conservatives continue to evidence strong support in Wales. With a large sample YouGov poll to add to other data, it is clear that were an election to happen today Labour could not guarantee winning a majority of seats and would more than likely be pushed into second place on votes.

Our Northern Ireland forecast is based on limited data, primarily a poll from Lucid Point during the summer.

UK Forecast

Party% VoteForecastChange on 2017
 Conservatives35.8% (33.8% – 37.8%)359 – 363+42 to +46
 Labour22.1% (20.8% – 23.4%)181 – 185-81 to -77
 SNP3.4% 49 – 51+14 to +16
Liberal Democrats17.8% (16.8% – 18.8%)30 – 31+18 to +19
Brexit Party12.6% (12.2% – 13.0%)1 – 3+1 to +3
Plaid Cymru0.6%3 – 5-1 to +1
Green4.4% (4.0% – 4.8%)0 -2-1 to +1
Independent0-2
Speaker 1 –
Northern Ireland 18 

Most likely result – Conservative Majority

Scotland

Party% VoteForecastChange on 2017
SNP41.1%49 – 51+14 to +16
Conservatives20.3%3 – 4-10 to -9
Liberal Democrats 12.2%4 – 5 0 to +1
Labour16.8%0 – 2-7 to -5
Brexit Party 6.9%
Greens2.3%  

Most Likely Result – SNP Majority of Seats

Wales

Party% VoteForecastChanges on 2017
Conservatives 29.4% 17 – 18 +9 to +10
Labour 24.9% 16 – 18-12 to -10
Liberal Democrats 15.9% 1 – 2+1 to +2
Plaid Cymru13.0% 3 – 5-1 to +1
Brexit Party13.5%   
Greens3.2%   

Most Likely Result – Conservative Plurality of Seats

London

Party% VoteForecastChanges on 2017
Labour30.9%35 – 36-11 to -10
Conservatives33.3%31 – 32+10 to +11
Liberal Democrats22.7%5 – 7+2 to +4
Brexit Party7.6%
Greens5.1%

We expect three Change UK / TIG seats in London to be lost

Most Likely Result – Labour Plurality of Seats

Northern Ireland

Party% VoteForecastChanges on 2017
DUP29.1%8 – 10-2 to 0
Sinn Fein25.0%5 – 7-2 to 0
Alliance24.1%1 – 3+1 to +3
UUP9.1%0 – 20 to +2
SDLP8.0%0
Independent 1

Most Likely Result – DUP Plurality



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