How many rainy days have you experienced? Enter your birth date and a city to find out.
Enter your birth date and a city to estimate your total rainy days
The Age in Rainy Days Calculator estimates the total number of rainy days you have experienced in your lifetime based on your birth date and the city you live in. The calculation multiplies your age in years by the average annual number of rainy days reported for your selected city.
Here is how the calculation works:
While this is an estimate — actual rainfall varies year to year due to climate patterns like El Niño, La Niña, and long-term climate change — it provides a fascinating glimpse into how weather shapes your life experience. If you have moved between cities, the actual number of rainy days you have experienced would be a weighted average of the cities you have lived in.
This table shows the average number of rainy days (days with at least 0.01 inches / 0.25 mm of precipitation) per year for 15 major cities across the globe. The data is compiled from national meteorological agencies and climatological records.
| City | Country | Rainy Days/Year | Climate Type |
|---|---|---|---|
| Singapore | Singapore | 178 | Tropical rainforest |
| Vancouver | Canada | 161 | Oceanic / temperate rainforest |
| Seattle | United States | 150 | Oceanic / marine west coast |
| Shanghai | China | 126 | Humid subtropical |
| New York | United States | 116 | Humid subtropical |
| Paris | France | 110 | Oceanic |
| Mexico City | Mexico | 108 | Subtropical highland |
| London | United Kingdom | 106 | Oceanic |
| Berlin | Germany | 106 | Oceanic |
| Tokyo | Japan | 103 | Humid subtropical |
| Sydney | Australia | 93 | Humid subtropical |
| Mumbai | India | 79 | Tropical wet and dry |
| Beijing | China | 71 | Continental / semi-arid |
| Dubai | United Arab Emirates | 15 | Hot desert |
| Cairo | Egypt | 5 | Hot desert |
* A "rainy day" is defined as a day with at least 0.01 inches (0.25 mm) of measurable precipitation. Data sources: national meteorological agencies including NOAA, Met Office, Deutscher Wetterdienst, JMA, and others. Values are long-term averages and may vary slightly between sources.
If you are considering relocating for work, retirement, or a change of scenery, climate is one of the most important factors to evaluate. Someone who has lived in Seattle for 40 years has experienced approximately 6,000 rainy days, while the same number of years in Cairo would bring only about 200 rainy days. Use this calculator to compare how many rainy days you would experience in different cities, helping you choose a climate that matches your preferences — whether you love the cozy feeling of frequent rain or prefer the constant sunshine of an arid climate.
Rain is deeply tied to memory and emotion. The sound of rain on a window, the smell of wet pavement (petrichor), the grey skies of a winter afternoon — these are sensory experiences that define our relationship with place. If you grew up in a rainy city and moved to a dry one, this calculator puts a number on how many of those rainy days you have left behind. It is a tool for weather nostalgia, helping you reflect on how the climate of your hometown shaped your childhood memories and daily rhythms.
The difference between the rainiest and driest cities on Earth is staggering. A person living in Singapore experiences 178 rainy days per year — nearly every other day brings measurable precipitation. In contrast, a person in Cairo experiences just 5 rainy days per year, meaning rain is a rare and noteworthy event. Over a 70-year lifetime, that is the difference between 12,460 rainy days in Singapore and just 350 in Cairo. This calculator illuminates the incredible diversity of Earth's climates and how they shape daily life around the world.
See how many rainy days a person would have experienced at different ages in each of the 15 featured cities. The table below shows estimated total rainy days for a 30-year-old, 50-year-old, and 70-year-old living in each city from birth.
| City | Rainy Days/Year | At Age 30 | At Age 50 | At Age 70 |
|---|---|---|---|---|
| Singapore | 178 | 5,340 | 8,900 | 12,460 |
| Vancouver | 161 | 4,830 | 8,050 | 11,270 |
| Seattle | 150 | 4,500 | 7,500 | 10,500 |
| Shanghai | 126 | 3,780 | 6,300 | 8,820 |
| New York | 116 | 3,480 | 5,800 | 8,120 |
| Paris | 110 | 3,300 | 5,500 | 7,700 |
| Mexico City | 108 | 3,240 | 5,400 | 7,560 |
| London | 106 | 3,180 | 5,300 | 7,420 |
| Berlin | 106 | 3,180 | 5,300 | 7,420 |
| Tokyo | 103 | 3,090 | 5,150 | 7,210 |
| Sydney | 93 | 2,790 | 4,650 | 6,510 |
| Mumbai | 79 | 2,370 | 3,950 | 5,530 |
| Beijing | 71 | 2,130 | 3,550 | 4,970 |
| Dubai | 15 | 450 | 750 | 1,050 |
| Cairo | 5 | 150 | 250 | 350 |
* Estimates assume the person has lived in the same city their entire life. Actual results will vary based on relocation, yearly climate variation, and exact birth date. Figures are rounded to the nearest 10.
Among the 15 major world cities featured in this calculator, Singapore has the most rainy days with an average of 178 days per year of measurable precipitation. Singapore's equatorial tropical rainforest climate means it experiences frequent, often brief, rain showers year-round with no true dry season. However, there are rainier places on Earth not included in this list — such as Mawsynram, India (which receives approximately 467 rainy days per year) and Buenaventura, Colombia (around 300+ rainy days per year). Among major global cities, Vancouver (161 rainy days) and Seattle (150 rainy days) are the rainiest major cities in North America.
The average person living to age 80 will experience approximately 8,000 rainy days in their lifetime, assuming they live in a city with an average of 100 rainy days per year (roughly the global average for inhabited areas). However, this number varies enormously by location. A person living in Singapore for 80 years would experience approximately 14,240 rainy days, while someone in Cairo would experience only about 400 rainy days in the same period. The global average is heavily skewed by the fact that most of the world's population lives in climates with moderate to high rainfall, such as tropical, subtropical, and temperate zones.
No, this calculator uses long-term average rainy day data from historical climatological records and does not account for ongoing changes in rainfall patterns due to climate change. Scientists have documented that climate change is altering precipitation patterns worldwide — some regions are experiencing more frequent and intense rainfall events, while others are becoming drier. The data used in this calculator represents the multi-decade average for each city, which provides a reasonable estimate for your lifetime but may not reflect recent shifts or future trends. For the most up-to-date climate data for a specific city, consult your local meteorological agency.
A "rainy day" is defined as any day with at least 0.01 inches (0.25 mm) of measurable precipitation, regardless of how much rain falls. This is different from "total rainfall" or "precipitation amount," which measures the total volume of rain that falls. A city can have many rainy days but relatively low total rainfall (e.g., London: 106 rainy days but only ~600 mm of rain per year, with frequent drizzle), or relatively few rainy days but very high total rainfall (e.g., Mumbai: 79 rainy days but ~2,200 mm of rain per year, with intense monsoon downpours). This calculator focuses on the number of rainy days — the frequency of precipitation — rather than how much rain falls on each rainy day.
If you have moved between cities with different climates, the actual number of rainy days you have experienced is a weighted average based on how many years you spent in each location. For example, if you spent 20 years in Seattle (150 rainy days/year) and 20 years in Dubai (15 rainy days/year), you would have experienced approximately (20 × 150) + (20 × 15) = 3,300 rainy days total. To get the most accurate estimate, you can use this calculator separately for each city you have lived in and add the results together. This tool assumes you have lived in the selected city your entire life, which provides a useful baseline for comparison.