📒 Observation table — July 2026 Full weather archive →
| Date | Day | Morning t° | Day t° | Phenomena | Wind | Pressure | Humidity | My observations ✏️ |
|---|---|---|---|---|---|---|---|---|
| July 1 | Wed | +20° | +26° | ⛅ cloudy | 1.4 m/s | 756 mmHg | 35% | |
| July 2 | Thu | +19° | +28° | ☀️ clear | 4.5 m/s | 755 mmHg | 33% | |
| July 3 | Fri | +17° | +24° | ☀️ clear | 1.5 m/s | 760 mmHg | 38% | |
| July 4 | Sat | +17° | +26° | ☁️ overcast | 2.6 m/s | 759 mmHg | 34% | |
| July 5 | Sun | +21° | +26° | 🌦 drizzle | 3.8 m/s | 757 mmHg | 44% | |
| July 6 | Mon | +18° | +27° | ☁️ overcast | 4.2 m/s | 755 mmHg | 40% | |
| July 7 | Tue | +21° | +30° | ☁️ overcast | 6.1 m/s | 751 mmHg | 23% | |
| July 8 | Wed | +21° | +25° | ⛅ cloudy | 4.3 m/s | 754 mmHg | 52% | |
| July 9 | Thu | +20° | +26° | ☀️ clear | 1.6 m/s | 754 mmHg | 43% | |
| July 10 | Fri | +19° | +28° | ⛅ cloudy | 2.1 m/s | 753 mmHg | 36% | |
| July 11 | Sat | +21° | +30° | ☀️ clear | 3.1 m/s | 755 mmHg | 34% | |
| July 12 | Sun | +22° | +31° | ☀️ clear | 3.1 m/s | 757 mmHg | 29% | |
| July 13 | Mon | +23° | +32° | ☁️ overcast | 2.8 m/s | 754 mmHg | 28% | |
| July 14 | Tue | +23° | +31° | ☁️ overcast | 2.5 m/s | 753 mmHg | 33% | |
| July 15 | Wed | +21° | +27° | ☁️ overcast | 2.6 m/s | 755 mmHg | 44% | |
| July 16 | Thu | +21° | +30° | ⛅ cloudy | 1.8 m/s | 753 mmHg | 31% | |
| July 17 | Fri | +20° | +23° | 🌦 drizzle | 3.5 m/s | 751 mmHg | 77% | |
| July 18 | Sat | +19° | +25° | ☀️ clear | 1.6 m/s | 752 mmHg | 46% | |
| July 19 | Sun | +17° | +21° | ⛅ cloudy | 4.3 m/s | 755 mmHg | 39% | |
| July 20 | Mon | +15° | +21° | ⛅ cloudy | 2.7 m/s | 757 mmHg | 38% | |
| July 21 | Tue | +16° | +23° | ⛅ cloudy | 2.2 m/s | 758 mmHg | 34% | |
| July 22 | Wed | +16° | +21° | ☁️ overcast | 4 m/s | 757 mmHg | 49% | |
| July 23 | Thu | +16° | +22° | ⛅ cloudy | 3.6 m/s | 756 mmHg | 40% | |
| July 24 | Fri | +15° | +24° | ☀️ clear | 0.6 m/s | 754 mmHg | 41% | |
| July 25 | Sat | +17° | +30° | ☀️ clear | 2 m/s | 746 mmHg | 27% | |
| July 26 | Sun | +20° | +29° | ☀️ clear | 6.2 m/s | 745 mmHg | 25% | |
| July 27 | Mon | +19° | +25° | ⛅ cloudy | 4.7 m/s | 753 mmHg | 40% | |
| July 28 | Tue | +17° | +26° | ☀️ clear | 0.4 m/s | 757 mmHg | 37% | |
| July 29 | Wed | — | — | — | — | — | — | |
| July 30 | Thu | — | — | — | — | — | — | |
| July 31 | Fri | — | — | — | — | — | — |
🌤 Now in Mainz
🧑🏫 How to keep a weather diary
- Pick an observation time — the same every day, for example 8:00 and 14:00.
- Write down the temperature — from the thermometer outside or from our table (weather-station data).
- Note the phenomena — clear ☀️, cloudy ⛅, overcast ☁️, rain 🌧, thunderstorm ⛈, snow ❄️.
- Add wind and pressure — for younger students “light/strong” is enough, older students write m/s and mmHg.
- Sum up at the end of the month — the warmest and coldest day, how many days had precipitation. Check yourself against the weather archive.
❓ Frequently asked questions
What do you write in a school weather diary?
The date, morning and daytime temperature, phenomena (clear/cloudy/rain), wind and pressure. For younger students temperature and phenomena are enough, older students add wind in m/s, pressure and humidity. Ready values for Mainz are already filled into the table above (28 days filled).
Where do I get the data if I missed a day or a month?
Past days in the table are filled with actual weather-station readings for Mainz. Previous months — via the ← arrow or the month list above the table, earlier ones — in the weather archive. Weather archive →
How do I print a blank template?
Click “Blank sheet (fill in by hand)” — a separate page opens with an empty table (dates and weekdays stay), with a “Print” button on it.
Weather diary in Mainz — in detail
A weather diary is a table of daily observations: air temperature, precipitation, wind, atmospheric pressure and cloud cover. Schoolchildren keep it for science and geography classes, and so do gardeners and anglers. Data for Mainz is filled in automatically from weather-station readings: past days always contain facts, not forecasts, so you can check your own records against the table.
July in Mainz. Compare your records with the city archive and climate, see the current weather on the city page, the forecast — for the week. All cities — in the weather diary by city.