Sanibel pollen forecast — J.N. "Ding" Darling National Wildlife Refuge neighborhood
Pollen Today
Today (20 September) pollen in J.N. "Ding" Darling National Wildlife Refuge, Sanibel 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 mugwort will increase; grass 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 | 21/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | Low | 10/100 |
| Ragweed (Ambrosia) | Low | 12/100 |
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 | 15/100 | |
| Willow (Salicaceae) | None | 0/100 | — |
| Mugwort (Artemisia) | Low | 4/100 | |
| Ragweed (Ambrosia) | Low | 7/100 |
Local Environmental Conditions
Bald cypress and red maple line the water's edge, common along this area's clear spring runs; this sits just outside the immediate area. Nearby, not far from here, sand pine and turkey oak trees, with pine pollen especially notable during its spring window. Located in the surrounding area, this area has parkland with regularly mown grass and planted trees, both sources of grass and ragweed pollen.
Temperatures average around 17°C at the January low and 29°C at the August high here, and of the 1300 mm that falls here annually, most arrives in the warmer stretch around August. Expect pollen activity to start building from around February, tracking the rise in temperature out of the January low.
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Frequently Asked Questions About Pollen in Florida
Is pollen high in Sanibel right now?
On 20 September 2026, overall pollen levels in Sanibel are low. Artemisia is the main contributor to airborne pollen, while grass and ambrosia remain at lower levels
Will pollen levels change in Sanibel tomorrow?
On 21 September 2026, pollen conditions in Sanibel will be similar to today, with artemisia at low levels, grass at low levels, ambrosia at low levels
Is pollen expected to decrease in Sanibel this week?
According to the five-day outlook, grass and ambrosia pollen levels are expected to gradually decrease, while artemisia pollen will increase, suggesting mixed conditions later in the week.
Which pollen types are currently active in Sanibel?
On 20 September 2026, Artemisia is the dominant pollen source in Sanibel. grass and ambrosia are also present but at lower levels.
When is pollen season in Sanibel?
How often is the Sanibel pollen forecast updated?
The Sanibel pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Sanibel 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 Sanibel 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 Sanibel, 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).
