Sour in the Sun? 3 Unexpected Ways Weather Affects Your Mood
Heat, Humidity, and Summer Haters. How is the weather affecting your mood?
Posted January 15, 2013
Summer can sour your mood. Just because there is a lot of sunshine in the summer doesn’t mean it is the time when people are the happiest. In one study, rates of depression and sadness among the general population of the Netherlands were highest in the summer and fall. In a separate line of research, although participants’ moods tended to become more positive as the weather became more pleasant in the springtime, in the summer, hotter weather was associated with being in a more negative mood. Heat is also associated with increased aggression. So when you find yourself feeling sad, grouchy, or wanting to punch someone in the middle of summer, try taking a weekend trip to somewhere cool.
Humidity plays a role. In a study conducted in the 1980’s, researchers found that out of eight weather variables (hours of sunshine, precipitation, temperature, wind direction, humidity, change in barometric pressure, and absolute barometric pressure), humidity was the best predictor of mood outcomes. On days when humidity was high, participants reported being less able to concentrate and feeling sleepier. Other researchers have also found a link between high humidity and increased tiredness using controlled experimental methods. In contrast, participants reported increased pleasantness when in low humidity conditions. Perhaps these findings explain why I find myself disappointingly lethargic when I visit tropical locales? On a trip to Hawaii a few years ago, I packed my running shoes sure I would take long leisurely runs in the morning. Ten days later I returned home with my running shoes still packed away in the bottom of my bag and several long leisurely naps under my belt. I thought I was just being lazy but now I think I’ll blame it on the humidity!
So the weather affects your mood. Now what? If you, like me, are someone who is affected by the weather, try taking note of it. By attributing a grouchy mood to a rainy day, you may be less likely to assume the bad mood is due to some other important aspect of your life. It may also be worth deducing the weather personalities of those closest to you. You may be a Summer Lover, but if your parent, child, friend, spouse is a Summer Hater, it may help you better understand why they seem so down on days when the sun is shining and (to you) all seems right with the world.
Do you know of other surprising links between weather and mood? Share them in the comments! Also tell us your weather personality.
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- Keller, M., Fredrickson, B., Ybarra, O., Cote, S., Johnson, K., Mikels, J., Conway, A., & Wager, T. (2005). A Warm Heart and a Clear Head: The Contingent Effects of Weather on Mood and Cognition Psychological Science, 16 (9), 724-731 DOI: 10.1111/j.1467-9280.2005.01602.x
- Tsutsumi, H., Tanabe, S., Harigaya, J., Iguchi, Y., & Nakamura, G. (2007). Effect of humidity on human comfort and productivity after step changes from warm and humid environment Building and Environment, 42 (12), 4034-4042 DOI: 10.1016/j.buildenv.2006.06.037
- Howarth, E., & Hoffman, M. (1984). A multidimensional approach to the relationship between mood and weather British Journal of Psychology, 75 (1), 15-23 DOI: 10.1111/j.2044-8295.1984.tb02785.x
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