Pollen season, month by month around the world
Cedar, olive, birch — the weeks allergy sufferers plan around.
This is a warning page, not a recommendation. Pollen season covers 11 destinations on SeasonMap; the months below are the ones in which the risk window is open — most weeks in them pass quietly, and the score beside each place is still the ordinary climate score, hazard and all.
When it is on
Pollen season in January
- Austin 🇺🇸 United StatesCedar fever · 15 Dec – 20 Feb (usually)Ashe juniper releases through the coldest weeks and the counts run higher than almost anything else in North America.74
- Houston 🇺🇸 United StatesCedar and oak pollen · 15 Dec – 15 Apr (usually)Mountain cedar blows in from the Hill Country around the turn of the year, oak takes over through February and March, and the city publishes a pollen count daily because enough people plan their week around it.70
Pollen season in February
- Houston 🇺🇸 United StatesCedar and oak pollen · 15 Dec – 15 Apr (usually)Mountain cedar blows in from the Hill Country around the turn of the year, oak takes over through February and March, and the city publishes a pollen count daily because enough people plan their week around it.80
- Austin 🇺🇸 United StatesCedar fever · 15 Dec – 20 Feb (usually)Ashe juniper releases through the coldest weeks and the counts run higher than almost anything else in North America.79
- Tokyo 🇯🇵 JapanCedar pollen season · 10 Feb – 20 Apr (usually)Sugi and then hinoki pollen blow in off the plantations west of the city from mid-February.72
Pollen season in March
- Houston 🇺🇸 United StatesCedar and oak pollen · 15 Dec – 15 Apr (usually)Mountain cedar blows in from the Hill Country around the turn of the year, oak takes over through February and March, and the city publishes a pollen count daily because enough people plan their week around it.90
- Islamabad 🇵🇰 PakistanPaper mulberry pollen · 1 Mar – 15 Apr (usually)Paper mulberry, planted across the city when it was built, sends the spring pollen count to levels that put people in hospital every year.88
- Atlanta 🇺🇸 United StatesPine pollen season · 1 Mar – 10 May (usually)For six weeks in spring the whole city turns yellow: cars, porches, water.79
- Raleigh 🇺🇸 United StatesPine pollen season · 15 Mar – 10 May (usually)Loblolly pine coats cars, porches and the surface of every pond in the city yellow for several weeks each spring.79
- Tokyo 🇯🇵 JapanCedar pollen season · 10 Feb – 20 Apr (usually)Sugi and then hinoki pollen blow in off the plantations west of the city from mid-February.70
Pollen season in April
- Atlanta 🇺🇸 United StatesPine pollen season · 1 Mar – 10 May (usually)For six weeks in spring the whole city turns yellow: cars, porches, water.90
- Raleigh 🇺🇸 United StatesPine pollen season · 15 Mar – 10 May (usually)Loblolly pine coats cars, porches and the surface of every pond in the city yellow for several weeks each spring.88
- Houston 🇺🇸 United StatesCedar and oak pollen · 15 Dec – 15 Apr (usually)Mountain cedar blows in from the Hill Country around the turn of the year, oak takes over through February and March, and the city publishes a pollen count daily because enough people plan their week around it.85
- Islamabad 🇵🇰 PakistanPaper mulberry pollen · 1 Mar – 15 Apr (usually)Paper mulberry, planted across the city when it was built, sends the spring pollen count to levels that put people in hospital every year.82
- Tokyo 🇯🇵 JapanCedar pollen season · 10 Feb – 20 Apr (usually)Sugi and then hinoki pollen blow in off the plantations west of the city from mid-February.80
- Berlin 🇩🇪 GermanyBirch pollen season · 1 Apr – 20 May (usually)Berlin's street trees are heavy on birch and the count spikes for about six weeks in spring, yellow film on the parked cars and all.79
- Copenhagen 🇩🇰 DenmarkBirch pollen season · 5 Apr – 25 May (usually)The birch count runs high for about six weeks in spring, right as the outdoor tables come back out.75
Pollen season in May
- Berlin 🇩🇪 GermanyBirch pollen season · 1 Apr – 20 May (usually)Berlin's street trees are heavy on birch and the count spikes for about six weeks in spring, yellow film on the parked cars and all.86
- Raleigh 🇺🇸 United StatesPine pollen season · 15 Mar – 10 May (usually)Loblolly pine coats cars, porches and the surface of every pond in the city yellow for several weeks each spring.85
- Atlanta 🇺🇸 United StatesPine pollen season · 1 Mar – 10 May (usually)For six weeks in spring the whole city turns yellow: cars, porches, water.84
- Copenhagen 🇩🇰 DenmarkBirch pollen season · 5 Apr – 25 May (usually)The birch count runs high for about six weeks in spring, right as the outdoor tables come back out.83
- Moscow 🇷🇺 RussiaPoplar fluff · 25 May – 25 Jun (usually)For two or three weeks the city fills with white seed fluff off the poplars planted after the war: drifts of it in the gutters, in your eyes, and a fortnight of misery for anyone with hay fever.81
Pollen season in June
- Moscow 🇷🇺 RussiaPoplar fluff · 25 May – 25 Jun (usually)For two or three weeks the city fills with white seed fluff off the poplars planted after the war: drifts of it in the gutters, in your eyes, and a fortnight of misery for anyone with hay fever.90
- Saint Petersburg 🇷🇺 RussiaPoplar fluff · 1–28 Jun (usually)Poplar seed drifts down the streets like snow for two or three weeks in June and piles up in the gutters and the metro entrances.90
Pollen season in August
Pollen season in September
Pollen season in December
- Houston 🇺🇸 United StatesCedar and oak pollen · 15 Dec – 15 Apr (usually)Mountain cedar blows in from the Hill Country around the turn of the year, oak takes over through February and March, and the city publishes a pollen count daily because enough people plan their week around it.77
- Austin 🇺🇸 United StatesCedar fever · 15 Dec – 20 Feb (usually)Ashe juniper releases through the coldest weeks and the counts run higher than almost anything else in North America.76