Charleston pollen forecast — Kiawah Island Golf Resort – Ocean Course neighborhood
Pollen Today
Today (20 September) pollen in Kiawah Island Golf Resort – Ocean Course, Charleston is low; grass, mugwort, and ragweed are low.
Pollen Tomorrow
Tomorrow (21 September 2026) levels are similar to today.
7-Day Trend
Over the next week grass, mugwort, and ragweed will decrease.
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Pollen Risk
Today - 20 September
| Pollen species | Level | Value |
|---|---|---|
| Alder (Alnus) | None | 0/100 |
| Birch (Betula) | None | 0/100 |
| Hazel (Corylus) | None | 0/100 |
| Cypress (Cupressaceae) | None | 0/100 |
| Grass (Poaceae) | Low | 3/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | Low | 5/100 |
| Ragweed (Ambrosia) | Low | 13/100 |
Tomorrow - 21 September
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Alder (Alnus) | None | 0/100 | — |
| Birch (Betula) | None | 0/100 | — |
| Hazel (Corylus) | None | 0/100 | — |
| Cypress (Cupressaceae) | None | 0/100 | — |
| Grass (Poaceae) | Low | 10/100 | |
| Willow (Salicaceae) | None | 0/100 | — |
| Mugwort (Artemisia) | Low | 12/100 | |
| Ragweed (Ambrosia) | Low | 20/100 |
Local Environmental Conditions
Kiawah Island Golf Resort's South Carolina Atlantic barrier island setting features live oak, palmetto, and sea oats as the main pollen sources across the Ocean Course, with exposure varying between the exposed Atlantic-facing fairways and the more sheltered maritime forest sections. The Atlantic Ocean position means onshore winds can frequently disperse pollen, while the subtropical South Carolina climate supports an extended pollen season and the barrier island maritime forest creates a distinctive local pollen environment.
The pollen season at Kiawah Island Golf Resort – Ocean Course mirrors Charleston overall, starting with cedar and elm in February before oak peaks during March and April. Peak grass pollen arrives in April and May, and mugwort and nettle extend exposure into September. Mild winters across the Southeast push the pollen calendar earlier than in most of the country throughout the year.
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Frequently Asked Questions About Pollen in South Carolina
Is pollen high in Charleston right now?
On 20 September 2026, overall pollen levels in Charleston are low. Ambrosia is the main contributor to airborne pollen, while artemisia and grass remain at lower levels
Will pollen levels change in Charleston tomorrow?
On 21 September 2026, pollen conditions in Charleston will be similar to today, with ambrosia at low levels, artemisia at low levels, grass at low levels
Is pollen expected to decrease in Charleston this week?
According to the five-day outlook, ambrosia, artemisia, and grass pollen levels are expected to gradually decrease, suggesting improving conditions later in the week.
Which pollen types are currently active in Charleston?
On 20 September 2026, Ambrosia is the dominant pollen source in Charleston. artemisia and grass are also present but at lower levels.
When is pollen season in Charleston?
How often is the Charleston pollen forecast updated?
The Charleston pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Charleston come from nearby or far away?
Studies show that most pollen exposure (often 70–90%) comes from nearby sources, such as local trees and vegetation. A good pollen forecast therefore depends on accurately representing local vegetation. Pollen can travel long distances, but this usually matters only early in the season or during specific wind events.
Are pollen levels in Charleston based on measurements or forecasts?
Pollen data is often misunderstood. Most "pollen levels" are not real-time measurements, but forecasts.
Direct pollen measurements are typically delayed by 1-2 days because they require manual analysis. To show current conditions in Charleston, modern forecasts combine recent measurements, weather data, and information about local vegetation.
This allows us to estimate pollen levels for today and the coming days, not just report the past.
Airmine’s atmospheric monitoring platform was developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team, using satellite and Earth observation technologies to improve emissions monitoring.
Understanding the Scale
The 0–100 scores represent risk levels, not direct measurements of pollen or air pollutant concentrations. Higher scores indicate higher risk. Pollen and air quality use different thresholds.
Pollen
| None | 0 | No or negligible risk of exposure. Pollen/mold exposure is expected to be minimal. |
| Low | 0-25 | Low risk of exposure. Small amounts of pollen or mold spores may be present. |
| Moderate | 25-50 | Moderate risk of exposure. Pollen/mold exposure is expected to be noticeable. |
| High | 50-75 | High risk of exposure. Elevated pollen/mold exposure is expected. |
| Very High | 75-100 | Very high risk of exposure. Pollen/mold exposure is expected to be at or near its highest levels. |
Get More in the Airmine Pollen app
Get 15-day pollen forecasts with morning, afternoon and evening detail, plus 5-day air quality forecasts. Explore interactive pollen risk maps, estimated pollen season start, route profiles and a symptoms diary.
Features and forecast availability vary by region. Currently covering Europe, the contiguous US, southern Canada, South Africa, Australia, Indonesia (Java & Bali), Brazil, Paraguay, Uruguay and the Buenos Aires area.
Developed with support from the European Space Agency (ESA) Business Applications and Space Solutions (BASS).
