San Diego Country Estates Pollen Forecast - Today, Tomorrow and the Week Ahead
Pollen Today
Today (7 October) pollen in San Diego Country Estates is high; ragweed is high; grass and mold (cladosporium) are moderate; mugwort and mold (alternaria) are low.
Pollen Tomorrow
Tomorrow (8 October 2026) mugwort remains low, ragweed remains high, mold (alternaria) remains low, mold (cladosporium) remains moderate, grass declining.
7-Day Trend
Over the next week mugwort will increase; grass, ragweed, mold (alternaria), and mold (cladosporium) will decrease.
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Pollen Risk
Today - 7 October
| 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) | Moderate | 26/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | Low | 1/100 |
| Ragweed (Ambrosia) | High | 52/100 |
| Alternaria | Low | 22/100 |
| Cladosporium | Moderate | 27/100 |
Tomorrow - 8 October
| 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 | 25/100 | |
| Willow (Salicaceae) | None | 0/100 | — |
| Mugwort (Artemisia) | Low | 1/100 | |
| Ragweed (Ambrosia) | High | 51/100 | |
| Alternaria | Low | 20/100 | |
| Cladosporium | Moderate | 26/100 |
Local Environmental Conditions
The area around San Diego Country Estates is a mix of scrubland and built-up land, plus some woodland. A stream or river nearby means riverside trees such as willow and plane tree are part of the local pollen picture. Oak heads the list of allergenic trees nearby, ahead of plane tree. Grasses also feature strongly, alongside mugwort among the weeds.
Tree pollen peaks in mid-spring, when the weather warms to around 15°C and oak and plane tree are in full flower. Grasses take over in late spring and keep pollen in the air into early fall. Mugwort brings a final peak through summer. Spring is the wettest time of year, and heavy showers can bring short breaks in pollen.
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Frequently Asked Questions About Pollen in California
Is pollen high in San Diego Country Estates right now?
On 7 October 2026, overall pollen levels in San Diego Country Estates are high. Ambrosia is the main contributor to airborne pollen, while grass and artemisia remain at lower levels
Will pollen levels change in San Diego Country Estates tomorrow?
On 8 October 2026, pollen conditions in San Diego Country Estates will be different from today, with ambrosia at high levels, artemisia at low levels and grass continuing to decline
Is pollen expected to decrease in San Diego Country Estates this week?
According to the five-day outlook, ambrosia and grass 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 San Diego Country Estates?
On 7 October 2026, Ambrosia is the dominant pollen source in San Diego Country Estates. grass and artemisia are also present but at lower levels.
When is pollen season in San Diego Country Estates?
How often is the San Diego Country Estates pollen forecast updated?
The San Diego Country Estates pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in San Diego Country Estates 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 San Diego Country Estates 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 San Diego Country Estates, 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 pollen scores represent risk levels, not direct pollen measurements. Higher scores indicate higher risk.
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. |
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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).
