📒 Observation table — May 2026 Full weather archive →
| Date | Day | Morning t° | Day t° | Phenomena | Wind | Pressure | Humidity | My observations ✏️ |
|---|---|---|---|---|---|---|---|---|
| May 1 | Fri | +12° | +20° | ☁️ overcast | 2.1 m/s | 744 mmHg | 53% | |
| May 2 | Sat | +13° | +18° | 🌦 drizzle | 3.4 m/s | 742 mmHg | 66% | |
| May 3 | Sun | +12° | +14° | 🌧 rain | 3.5 m/s | 740 mmHg | 88% | |
| May 4 | Mon | +11° | +16° | ☀️ clear | 4.5 m/s | 742 mmHg | 56% | |
| May 5 | Tue | +10° | +16° | ☁️ overcast | 3.4 m/s | 742 mmHg | 58% | |
| May 6 | Wed | +10° | +18° | ☁️ overcast | 1.5 m/s | 740 mmHg | 45% | |
| May 7 | Thu | +11° | +18° | 🌦 drizzle | 4 m/s | 737 mmHg | 53% | |
| May 8 | Fri | +11° | +16° | 🌦 drizzle | 3.9 m/s | 737 mmHg | 58% | |
| May 9 | Sat | +13° | +17° | ☁️ overcast | 4.7 m/s | 733 mmHg | 62% | |
| May 10 | Sun | +11° | +17° | 🌦 drizzle | 5 m/s | 737 mmHg | 51% | |
| May 11 | Mon | +12° | +16° | 🌧 rain | 3.1 m/s | 740 mmHg | 80% | |
| May 12 | Tue | +12° | +16° | 🌦 drizzle | 2.8 m/s | 744 mmHg | 75% | |
| May 13 | Wed | +12° | +19° | 🌦 drizzle | 2.8 m/s | 744 mmHg | 68% | |
| May 14 | Thu | +10° | +18° | ⛅ cloudy | 3.9 m/s | 741 mmHg | 49% | |
| May 15 | Fri | +11° | +17° | 🌦 drizzle | 4.1 m/s | 741 mmHg | 53% | |
| May 16 | Sat | +10° | +19° | ☀️ clear | 1.9 m/s | 743 mmHg | 47% | |
| May 17 | Sun | +11° | +19° | ⛅ cloudy | 1.8 m/s | 743 mmHg | 48% | |
| May 18 | Mon | +10° | +18° | ☁️ overcast | 3 m/s | 745 mmHg | 57% | |
| May 19 | Tue | +14° | +18° | 🌦 drizzle | 4.3 m/s | 747 mmHg | 78% | |
| May 20 | Wed | +12° | +25° | ☀️ clear | 0.6 m/s | 747 mmHg | 43% | |
| May 21 | Thu | +19° | +27° | ⛅ cloudy | 4 m/s | 747 mmHg | 43% | |
| May 22 | Fri | +20° | +30° | ☁️ overcast | 2.2 m/s | 746 mmHg | 40% | |
| May 23 | Sat | +20° | +26° | ⛅ cloudy | 2.6 m/s | 748 mmHg | 44% | |
| May 24 | Sun | +19° | +28° | ⛅ cloudy | 2.7 m/s | 745 mmHg | 48% | |
| May 25 | Mon | +18° | +27° | ⛅ cloudy | 3.2 m/s | 746 mmHg | 51% | |
| May 26 | Tue | +19° | +29° | ⛅ cloudy | 1.7 m/s | 747 mmHg | 38% | |
| May 27 | Wed | +21° | +33° | ☀️ clear | 0.9 m/s | 745 mmHg | 33% | |
| May 28 | Thu | +20° | +28° | ☀️ clear | 3.8 m/s | 745 mmHg | 52% | |
| May 29 | Fri | +16° | +27° | ⛅ cloudy | 2.5 m/s | 746 mmHg | 57% | |
| May 30 | Sat | +16° | +25° | ⛅ cloudy | 2.2 m/s | 746 mmHg | 57% | |
| May 31 | Sun | +15° | +27° | ☁️ overcast | 2.3 m/s | 745 mmHg | 40% |
🧑🏫 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 Oliveyra are already filled into the table above (31 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 Oliveyra. 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 Oliveyra — 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 Oliveyra 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.
May in Oliveyra. 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.