Weather is one of the strongest external signals that drives purchase behaviour — it affects what people want to buy, when they feel like shopping, and how they respond to messaging.

Most Klaviyo users send the same campaign to their entire list regardless of whether it's 30°C in their customer's city or snowing. Weather personalisation closes that gap: the right product, promoted when local conditions make it relevant.

Any business where weather influences what customers buy. This includes:

• Garden centres (frost alerts, planting season)
• Fashion and footwear (seasonal transitions, rain vs sun)
• Outdoor furniture and BBQ brands
• Skincare and SPF
• Pet supplies
• Home heating
• Activewear, and food & drink brands

If your customers' buying behaviour changes with the seasons — or with a cold snap, heatwave, or rainy week — this is for you.

Three main things:

• Segment your list by weather conditions (e.g. everyone with sub-zero temps this week)
• Trigger automated flows when weather events occur (e.g. first frost of autumn fires a garden prep campaign)
• Personalise email and SMS content dynamically so each customer sees messaging relevant to their local forecast

All without writing a line of code.

Yes. We write weather data directly to Klaviyo profile properties and send events — so you use Klaviyo's own segmentation and flow tools exactly as you normally would. No new platform to learn. You just have new data to work with.

Yes — weather personalisation is a strong differentiator you can offer across client accounts. If you're managing multiple Klaviyo accounts, see our agencies page or contact us about agency pricing and multi-account setup.

The weather forecast will be updated on all eligible profiles daily at the time you choose when you set up the weather sync.

Only profiles in your Klaviyo account which have a valid location will have their weather information updated.

Profiles with no location/insufficient information will not be updated.

In order to determine a profiles location we will first look for

• Country
• State/Region
• City

information on your profiles.

If this is not available, we will then use the profiles latitude and longitude information if this is stored in Klaviyo.

If neither of these are available, then no weather information will be added to the profile

You will be billed monthly only for the active profiles in your account.

Profiles that have no location/partial location information, will still be processed but may not be updated.

Please see this article for the full list of information synchronised to your Klaviyo account. What weather profile properties will I see in Klaviyo?

Only profiles in your Klaviyo account which have a valid location will have their weather information updated.

Profiles with no location/insufficient information will not be updated but are still part of your active profile count.

Profiles will get weather information updated ~24hrs, so if a profile has just been created, it may not have been updated yet. It should be updated in the next 24hrs.