Monthly climate summary
Get a full year overview of historical weather for any location — see which months are best for your plans.
Enter any location to see a month-by-month climate summary based on 10 years of historical data. Each month shows average maximum temperature, precipitation chance, and a weather reliability score to help you identify the best time of year to visit.
Understanding the monthly climate data
Weather score per month
The monthly weather score (0–10) is the average across all days and years in that month. Months with predominantly sunny weather score 7–10. Rainy or cold months score 3–6, and stormy or very cold months score below 3.
Precipitation chance
The percentage of historical days in that month that had measurable precipitation (above 0.5 mm). A 30% chance means roughly 9 days of rain per month on average across the past 10 years.
Temperature range
Average minimum and maximum temperatures across all years and days in the month. This gives a realistic expectation of what temperatures to pack for, avoiding single-year anomalies.
Best month for travel
The highlighted month follows the tool's weather-category score. It is not a personalized temperature-comfort ranking or a universal best travel month.
Climate profiles by region
Mediterranean climate
Locations like Barcelona, Rome, Athens, and Marseille share a similar pattern: hot and reliably dry summers (June–August) with mild, wetter winters. Spring and autumn offer pleasant temperatures with occasional rain. The sweet spot is often May or September when temperatures are comfortable and crowds thinner.
Tropical & subtropical
Wet and dry seasons vary locally. Monthly summaries do not identify exact monsoon onset or cessation; consult official regional seasonal guidance.
Oceanic climate
Western European cities like London, Amsterdam, and Dublin have an oceanic climate with rain spread fairly evenly throughout the year. The monthly summary helps identify which months have slightly better odds — typically May–September show marginally higher weather scores than winter months.
Continental climate
Central and Eastern European cities like Prague, Warsaw, and Budapest show strong seasonal contrasts: cold snowy winters and warm summers. The monthly summary makes clear that July and August offer the highest weather scores, while January and February are the coldest and most overcast.
Use monthly climate summaries to shortlist seasons
A monthly summary is a useful first screen when the exact date is still flexible. It helps you compare broad seasonal patterns at one selected location without inspecting hundreds of separate days. First confirm the selected place and coordinates. Then decide what a suitable month means for your trip: daytime warmth, cooler nights, fewer precipitation days, or flexibility for activities that can move indoors.
Know the window and wet-day definition
The current tool groups archived daily data from ten completed years by calendar month. Its precipitation-day count uses daily totals above 0.5 mm. That threshold is a definition used by this interface, not a universal standard for whether your activity was disrupted. A light shower and a prolonged wet day can both count, while a smaller total may not. Check the period displayed in the output before citing a percentage.
Hypothetical example: a month has a 30% qualifying precipitation-day share. That does not mean there is exactly a 30% chance of rain during your afternoon walk, nor does it imply every three-day visit will contain one wet day. Rain can cluster into consecutive days, and daily totals include hours outside your activity. The percentage describes the historical daily sample under the tool's threshold, not the timing of a future shower.
Interpret temperature and score separately
Average maximum and minimum temperatures describe the mean daily extremes in the sample. They are not the warmest and coldest conditions you could encounter. Clothing and accommodation choices may need additional context about variability and nighttime conditions. The weather score condenses weather categories; it should not be treated as a fully personalised comfort index or a certificate that a destination is suitable for heat-sensitive travellers.
A highlighted month is a result of the tool's scoring rules, not an objective best month for everyone. A photographer, museum visitor, beach traveller, and cyclist may prefer different conditions. If two months have similar scores, consider cost, daylight, accessibility, and indoor alternatives before interpreting a tiny score difference as meaningful. Do not choose a season from temperature alone and assume precipitation or wind is equally favourable.
Move from seasonal screening to date research
This ten-year summary is not automatically a formal 30-year climate normal. Climate variability and changing conditions can affect how representative the window is. Open-Meteo's gridded historical archive can smooth local terrain, coastlines, and brief intense events. Monthly totals cannot certify monsoon onset, hurricane absence, or safety on a particular route. Check relevant official seasonal and current guidance for hazards outside this tool's scope.
After shortlisting months, inspect candidate dates in the main search and read the travel-window guide. Keep coordinates, window, units, wet-day threshold, and retrieval date with your notes. References: Open-Meteo documentation, ECMWF ERA5, and NOAA climate normals. Educational synthesis does not replace certified forecasts, current warnings, or personalized professional advice.