Does sunshine make us happier?

As much of Britain basks in longed-for sunshine one senses that, despite all the economic gloom, our national spirits have been lifted. We instinctively believe that warm weather makes us happier. But is it true?

Yesterday's well-being statistics suggested the opposite. The happiest region of the whole UK is the most northerly - Shetland, Orkney and the Outer Hebrides. Some islands see only around 1,000 hours of sunshine a year compared to a UK average of 1,340 hours.

And when one reads those international lists of the happiest countries, top of the league tend to be places like Norway, Sweden, Canada, Denmark and Finland. There is no correlation between well-being and warm weather - if anything it looks like the opposite.


In 1998, psychologists David Shkade and Daniel Kahneman decided to test the theory that a sunny climate equates to a sunny disposition in a paper entitled Does Living in California Make People Happy?

The two professors had noticed what they described as "a stereotyped perception that people are happier in California… anchored in the perceived superiority of the California climate." So they compared the happiness of southern Californians with Midwesterners.

Two conclusions emerged from their research: firstly, Californians were no happier than people from the Midwest with its wind and rain; second, of all the factors that affected people's life satisfaction, weather was listed at the bottom. Midwesterners moaned about the weather more than Californians, but that didn't appear to make much difference to their overall contentment.

The scientists ended their paper with a homily. "It is not unlikely that some people might actually move to California in the mistaken belief that this would make them happier," they wrote. "Our research suggests a moral, and a warning: Nothing that you focus on will make as much difference as you think."

“Psychiatrist Norman Rosenthal noticed that after his move from sub-tropical Johannesburg to seasonal New York he was less energetic in the winter months”

During the last few decades a significant amount of research has been conducted into the relationship between mood and weather, scientists looking for a link between atmospheric condition and personal disposition. Do high temperatures make people passionate? Does precipitation dampen enthusiasm? Are people happier in summer than in winter?

Analysis in the 70s and 80s variously suggested that high pressure, high temperature and low humidity were associated with positive emotions - basically, nice weather seemed to put people in a good mood. More recent research, however, has challenged this assertion with a number of studies suggesting the link is either very small or non-existent.

One paper published in 2008 concluded that "the idea that pleasant weather increases people's positive mood in general is not supported by the findings of this study". The author, Jaap Denissen, accepted that his conclusions apparently contradicted common sense but insisted that there could be a number of factors to "explain the discrepancy between empirical results and widely held beliefs".